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Guardian / Garage door opener / Family guide

Guardian 315, 415, 425 and 428: Core Series manual selector

Core Series covers several distinct opener models. Match the full number and the manual cover, not just the series name.

Match the model before choosing a document

Identifier: Core Series 315 / 415 / 425 / 428. This guide compares a family or related models. Use the exact configuration on your label.

Models covered: 315, 415, 425, 428. They are separate configurations; compare the applicable facts and documents below.

Select the exact number from your opener label. The 315, 415, 425 and 428 each have a separate official manual.

The index's 2017 label for 415 links to a cover revised 04-21; its 428 link opens revision 03-21. The actual document cover is the reliable revision reference here.

415-3T has a separate page and manual because its rail requirements differ. Do not drop the suffix when requesting support.

Documented specifications

Values apply to the configuration named in each row. Follow the source for its exact scope.
315 manufacturer power label1/2 HPSource: Guardian 315 owner manual · Cover
415 manufacturer power label1/2 HPSource: Guardian 415 owner manual · Cover
425 manufacturer power label1/2 HPSource: Guardian 425 owner manual · Cover
428 manufacturer power label3/4 HPSource: Guardian 428 owner manual · Cover
Door scope in all four manualsResidential sectional doorsEach exact manual independently states this limitation.Source: Guardian 415 owner manual · Cover

Official documents & support

These links open the manufacturer’s document or support page. Manuals are hosted by their issuer.

Filter the documents listed below by model or document type. A match is not confirmation of your unit’s revision or installed accessories; read the scope note before using a document.

4 of 4 listed documents shown.

  • owner manual

    Cover identifies 315 and revision 4-14; serial-label location is described as the side panel.

    Models: 315enDocument: 4-14United States
  • owner manual

    Cover identifies 415 and 04-21 despite the older link label. Not 415-3T.

    Models: 415enDocument: 04-21; GDOMU10A-12United States
  • owner manual

    Cover identifies 425 and 9-17.

    Models: 425enDocument: 9-17; GDOMU11A-5United States
  • owner manual

    Cover identifies 428 and 03-21 despite the older link label.

    Models: 428enDocument: 03-21; GDOMU16A-5United States

Parts & related references

Match the exact model and source conditions before choosing a part. Conditional statements and explicit exclusions do not confirm a fit. Open a row for its exact pairing and source.

  • Guardian 1-FDCC door control console

    The Guardian parts book, cover dated October 1, 2024, lists 1-FDCC as the door control console for 415, 425, 428, 615 and 628. The cited 415, 425 and 428 manuals limit inclusion to certain configurations. Keep those edition-specific conditions and the separate 628 manual scope when selecting the console.

    Exact pairing & sources for 1-FDCC · 3 source statements
    Conditional

    1-FDCC is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 1-FDCC to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. Both console types are optional in the contents and are included only in some configurations according to the printed page 2 inventory. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 9, row 6, column group 1; exact model heading 415; accessories item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, accessories table item 5, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 4 / printed page 2, configuration-specific door-control inventory labels · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    1-FDCC is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 1-FDCC to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The printed page 3 inventory identifies this console type as included only in some configurations. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 14, row 6, column group 1; exact model heading 425; accessories item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, accessories table item 5, physical table row 5, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 4 / printed page 3, configuration-specific door-control inventory labels · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    1-FDCC is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 1-FDCC to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The printed page 3 inventory identifies this control type as included only in some configurations. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 19, row 7, column group 1; exact model heading 428; accessories item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, accessories table item 6, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 4 / printed page 3, configuration-specific door-control inventory labels · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian 3-FDCC deluxe door control console

    The Guardian parts book, cover dated October 1, 2024, identifies 3-FDCC as the deluxe door control console. Compare its model list with the narrower 1-FDCC list. The 415 manual (04-21; GDOMU10A-12) treats both console types as configuration-dependent; retain each manual edition's distinct conditions.

    Exact pairing & sources for 3-FDCC · 3 source statements
    Conditional

    3-FDCC is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 3-FDCC to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. Both console types are optional in the contents and are included only in some configurations according to the printed page 2 inventory. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 9, row 7, column group 1; exact model heading 415; accessories item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, accessories table item 6, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 4 / printed page 2, configuration-specific door-control inventory labels · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    3-FDCC is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 3-FDCC to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 14, row 3, column group 1; exact model heading 425; accessories item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, accessories table item 2, physical table row 2, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    3-FDCC is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 3-FDCC to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 19, row 3, column group 1; exact model heading 428; accessories item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, accessories table item 2, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian D1BCC remote control

    Identify exact D1BCC for model 415, compare the manual entry with book identifier R2BCC, and keep source editions distinct before selecting the remote.

    Exact pairing & sources for D1BCC · Conditional

    D1BCC is listed for exact model 415 in manual 04-21; GDOMU10A-12; all edition and configuration conditions apply.

    From D1BCC to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, accessories table item 4, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
  • Guardian D3BCC remote control

    Identify exact D3BCC for model 428, compare the manual entry with book identifier R2BCC, and keep source editions distinct before selecting the remote.

    Exact pairing & sources for D3BCC · Conditional

    D3BCC is listed for exact model 428 in manual 03-21; GDOMU16A-5; all edition and configuration conditions apply.

    From D3BCC to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, accessories table item 4, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian DLXWLLSTN

    DLXWLLSTN is an exact label in the GU-0003 connection scope; retain the pre-wired application and counterpart requirements.

    Exact pairing & sources for DLXWLLSTN · Conditional

    GU-0003 connection scope for DLXWLLSTN; pre-wired installation and the listed counterpart are required.

    From GU-0003 to DLXWLLSTN

    Applies only within this source scope
    • Market: US
    • Model scope: 315, 415, 425, 615, 628
    • Pre-wired wall-console installation only.
    • Requires a counterpart opener 315, 415, 425, 615, 628.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 console hash footnote · checked 2026-09-11 · GDAMU04A-1
  • Guardian GU-0003

    Connector and short lead for a pre-wired wall-console installation; verify both the exact opener and console.

    Exact pairing & sources for GU-0003 · 5 source statements
    Conditional

    GU-0003 connection scope for 315; pre-wired installation and the listed counterpart are required.

    From GU-0003 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Pre-wired wall-console installation only.
    • Requires the counterpart console PWLLSTN or DLXWLLSTN.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 opener asterisk footnote · checked 2026-09-11 · GDAMU04A-1
    Conditional

    GU-0003 connection scope for 415; pre-wired installation and the listed counterpart are required.

    From GU-0003 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Pre-wired wall-console installation only.
    • Requires the counterpart console PWLLSTN or DLXWLLSTN.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 opener asterisk footnote · checked 2026-09-11 · GDAMU04A-1
    Conditional

    GU-0003 connection scope for 425; pre-wired installation and the listed counterpart are required.

    From GU-0003 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Pre-wired wall-console installation only.
    • Requires the counterpart console PWLLSTN or DLXWLLSTN.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 opener asterisk footnote · checked 2026-09-11 · GDAMU04A-1
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 14, row 8, column group 1; exact model heading 425; accessories item 7 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GU-0003 connection scope for DLXWLLSTN; pre-wired installation and the listed counterpart are required.

    From GU-0003 to DLXWLLSTN

    Applies only within this source scope
    • Market: US
    • Model scope: 315, 415, 425, 615, 628
    • Pre-wired wall-console installation only.
    • Requires a counterpart opener 315, 415, 425, 615, 628.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 console hash footnote · checked 2026-09-11 · GDAMU04A-1
    Conditional

    GU-0003 connection scope for PWLLSTN; pre-wired installation and the listed counterpart are required.

    From GU-0003 to PWLLSTN

    Applies only within this source scope
    • Market: US
    • Model scope: 315, 415, 425, 615, 628
    • Pre-wired wall-console installation only.
    • Requires a counterpart opener 315, 415, 425, 615, 628.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 console hash footnote · checked 2026-09-11 · GDAMU04A-1
  • Guardian GUAT-021

    GUAT-021 identifies the header bracket in the historical model 315 manual, printed revision 4-14. Current revision interchangeability is not established.

    Exact pairing & sources for GUAT-021 · Conditional

    GUAT-021 is listed as a header bracket in the model 315 manual, printed revision 4-14; exact revision applicability requires confirmation.

    From GUAT-021 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Installation Parts table item 1, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
  • Guardian GUAT-022 door bracket

    GUAT-022 is identified as a door bracket in the replacement-parts book with a cover dated October 1, 2024. Match the exact model listing and installed configuration before selecting it.

    Exact pairing & sources for GUAT-022 · 4 source statements
    Conditional

    GUAT-022 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-022 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 2, row 3, column group 1; exact model heading 315; installation item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Installation Parts table item 2, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
    Conditional

    GUAT-022 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-022 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 7, row 3, column group 1; exact model heading 415; installation item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, installation table item 2, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-022 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-022 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 12, row 3, column group 1; exact model heading 425; installation item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, installation table item 2, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-022 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-022 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 17, row 3, column group 1; exact model heading 428; installation item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, installation table item 2, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-023 installation hardware bag

    GUAT-023 identifies an installation hardware bag. The listed 628, 425, 428 and 628FCA manual editions document contents, quantities and nominal sizes separately. The 315 and 415 manual cross-references do not verify the bag contents; read their source limitations.

    Exact pairing & sources for GUAT-023 · 4 source statements
    Conditional

    GUAT-023 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-023 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 2, row 4, column group 1; exact model heading 315; installation item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Installation Parts table item 3, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
    Conditional

    GUAT-023 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-023 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 7, row 4, column group 1; exact model heading 415; installation item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, installation table item 3, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-023 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-023 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 12, row 4, column group 1; exact model heading 425; installation item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, installation table item 3, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-023 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-023 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 17, row 4, column group 1; exact model heading 428; installation item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, installation table item 3, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-024 curved door arm

    GUAT-024 is identified as a curved door arm in the replacement-parts book with a cover dated October 1, 2024. Match the exact model listing and installed configuration before selecting it.

    Exact pairing & sources for GUAT-024 · 4 source statements
    Conditional

    GUAT-024 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-024 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 2, row 5, column group 1; exact model heading 315; installation item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Installation Parts table item 4, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
    Conditional

    GUAT-024 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-024 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 7, row 5, column group 1; exact model heading 415; installation item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, installation table item 4, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-024 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-024 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 12, row 5, column group 1; exact model heading 425; installation item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, installation table item 4, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-024 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-024 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 17, row 5, column group 1; exact model heading 428; installation item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, installation table item 4, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-025 straight door arm

    GUAT-025 is identified as a straight door arm in the replacement-parts book with a cover dated October 1, 2024. Match the exact model listing and installed configuration before selecting it.

    Exact pairing & sources for GUAT-025 · 4 source statements
    Conditional

    GUAT-025 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-025 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 2, row 6, column group 1; exact model heading 315; installation item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Installation Parts table item 5, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
    Conditional

    GUAT-025 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-025 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 7, row 6, column group 1; exact model heading 415; installation item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, installation table item 5, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-025 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-025 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 12, row 6, column group 1; exact model heading 425; installation item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, installation table item 5, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-025 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-025 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 17, row 6, column group 1; exact model heading 428; installation item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, installation table item 5, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-026 emergency release handle and rope

    GUAT-026 is identified as an emergency release handle and rope in the replacement-parts book with a cover dated October 1, 2024. Match the exact model listing and installed configuration before selecting it.

    Exact pairing & sources for GUAT-026 · 4 source statements
    Conditional

    GUAT-026 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-026 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 2, row 7, column group 1; exact model heading 315; installation item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Installation Parts table item 6, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
    Conditional

    GUAT-026 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-026 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 7, row 7, column group 1; exact model heading 415; installation item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, installation table item 6, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-026 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-026 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 12, row 7, column group 1; exact model heading 425; installation item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, installation table item 6, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-026 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-026 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 17, row 7, column group 1; exact model heading 428; installation item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, installation table item 6, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-027 header bracket

    GUAT-027 is identified as a header bracket in the replacement-parts book with a cover dated October 1, 2024. Match the exact model listing and installed configuration before selecting it.

    Exact pairing & sources for GUAT-027 · 4 source statements
    Conditional

    GUAT-027 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-027 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 2, row 2, column group 1; exact model heading 315; installation item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-027 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-027 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 7, row 2, column group 1; exact model heading 415; installation item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, installation table item 1, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-027 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-027 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 12, row 2, column group 1; exact model heading 425; installation item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, installation table item 1, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-027 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-027 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 17, row 2, column group 1; exact model heading 428; installation item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, installation table item 1, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-201 photo-eye safety system

    GUAT-201 identifies a photo-eye safety system. The replacement-parts book with a cover dated October 1, 2024 describes an emitter, sensor and brackets under some model headings and uses the shorter description "photo eyes" under others. Read the exact model and manual scope; the kit listings do not assign separate component numbers.

    Exact pairing & sources for GUAT-201 · 4 source statements
    Conditional

    GUAT-201 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-201 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 4, row 2, column group 1; exact model heading 315; accessories item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Accessories table item 1, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
    Conditional

    GUAT-201 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-201 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 9, row 2, column group 1; exact model heading 415; accessories item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, accessories table item 1, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-201 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-201 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 14, row 2, column group 1; exact model heading 425; accessories item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, accessories table item 1, physical table row 1, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-201 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-201 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 19, row 2, column group 1; exact model heading 428; accessories item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, accessories table item 1, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-202 push button

    The replacement-parts book with a cover dated October 1, 2024 lists GUAT-202 as a push button for 315, 415, 428 and 4150V. The 428 manual edition 03-21 identifies this control type as included only in some configurations. Match the exact model, manual edition and installed configuration.

    Exact pairing & sources for GUAT-202 · 3 source statements
    Conditional

    GUAT-202 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-202 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 4, row 3, column group 1; exact model heading 315; accessories item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Accessories table item 2, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
    Conditional

    GUAT-202 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-202 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 9, row 3, column group 1; exact model heading 415; accessories item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 26 / printed page 24, accessories table item 2, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-202 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-202 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The printed page 3 inventory identifies this control type as included only in some configurations. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 19, row 6, column group 1; exact model heading 428; accessories item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 428 manual parts reference · PDF page 25 / printed page 24, accessories table item 5, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 4 / printed page 3, configuration-specific door-control inventory labels · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-206

    GUAT-206 identifies the remote control in the historical model 315 manual, printed revision 4-14. Current revision interchangeability is not established.

    Exact pairing & sources for GUAT-206 · Conditional

    GUAT-206 is listed as a remote control in the model 315 manual, printed revision 4-14; exact revision applicability requires confirmation.

    From GUAT-206 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Historical model 315 manual listing only: GDO Manual Revised: 4-14; PDF page 25 / printed page 23.
    • Confirm that the exact installed model and component revision match this historical manual before selecting the part. The listing does not establish current revision interchangeability, production cutoffs or applicability to other models.
    • Source 1: GuardianGuardian 315 installation and accessory identifiers, PDF page25 / printed page23 · PDF page25 / printed page23, Accessories table item 4, exact Part No. row · checked 2026-09-12 · GDO Manual Revised: 4-14
  • Guardian GUAT-301 sprocket and gear assembly

    The 315 manual (4-14) calls GUAT-301 a sprocket and gear assembly; the 425 manual (9-17) calls it a shaft, and the 428 manual (03-21) calls it a shaft and gear assembly. The 315 assembly table requires replacement by a qualified technician. Keep the separate manual and October 2024 book scopes when selecting a part.

    Exact pairing & sources for GUAT-301 · 4 source statements
    Conditional

    GUAT-301 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-301 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 2, column group 1; exact model heading 415; assembly item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 2, column group 1; exact model heading 415; assembly item 1; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 1, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-301 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-301 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 2, column group 1; exact model heading 425; assembly item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 2, column group 1; exact model heading 425; assembly item 1; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 1, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-301 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-301 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 2, column group 1; exact model heading 428; assembly item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 2, column group 1; exact model heading 428; assembly item 1; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 1, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-301 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-301 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 1, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 2, column group 1; exact model heading 315; assembly item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 2, column group 1; exact model heading 315; assembly item 1; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-302 chassis

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-302 as the chassis. Its assembly-parts table requires replacement by a qualified technician. The model rows retain the separate manual and October 2024 parts-book listings; match each source revision and configuration before selecting a part.

    Exact pairing & sources for GUAT-302 · 4 source statements
    Conditional

    GUAT-302 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-302 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 3, column group 1; exact model heading 415; assembly item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 3, column group 1; exact model heading 415; assembly item 2; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 2, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-302 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-302 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 3, column group 1; exact model heading 425; assembly item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 3, column group 1; exact model heading 425; assembly item 2; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 2, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-302 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-302 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 3, column group 1; exact model heading 428; assembly item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 3, column group 1; exact model heading 428; assembly item 2; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 2, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-302 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-302 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 2, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 3, column group 1; exact model heading 315; assembly item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 3, column group 1; exact model heading 315; assembly item 2; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-303 lamp plate

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-303 as the lamp plate. Its assembly-parts table requires replacement by a qualified technician. The model rows retain the separate manual and October 2024 parts-book listings; match each source revision and configuration before selecting a part.

    Exact pairing & sources for GUAT-303 · 4 source statements
    Conditional

    GUAT-303 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-303 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 4, column group 1; exact model heading 415; assembly item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 4, column group 1; exact model heading 415; assembly item 3; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 3, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-303 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-303 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 14, column group 1; exact model heading 425; assembly item 13 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 14, column group 1; exact model heading 425; assembly item 13; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 13, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-303 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-303 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 14, column group 1; exact model heading 428; assembly item 13 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 14, column group 1; exact model heading 428; assembly item 13; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 13, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-303 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-303 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 3, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 4, column group 1; exact model heading 315; assembly item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 4, column group 1; exact model heading 315; assembly item 3; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-304 lamp dome

    The 315 manual (4-14) calls GUAT-304 a lamp dome; the 415 (04-21), 425 (9-17) and 428 (03-21) manuals call it a light lens. The 315 assembly table requires replacement by a qualified technician. Keep the separate manual and October 2024 book scopes when selecting a part.

    Exact pairing & sources for GUAT-304 · 4 source statements
    Conditional

    GUAT-304 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-304 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 5, column group 1; exact model heading 415; assembly item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 5, column group 1; exact model heading 415; assembly item 4; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 4, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-304 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-304 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 15, column group 1; exact model heading 425; assembly item 14 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 15, column group 1; exact model heading 425; assembly item 14; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 14, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-304 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-304 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 15, column group 1; exact model heading 428; assembly item 14 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 15, column group 1; exact model heading 428; assembly item 14; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 14, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-304 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-304 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 4, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 5, column group 1; exact model heading 315; assembly item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 5, column group 1; exact model heading 315; assembly item 4; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-305 capacitor

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-305 as the capacitor. Its assembly-parts table requires replacement by a qualified technician. The model rows retain the separate manual and October 2024 parts-book listings; match each source revision and configuration before selecting a part.

    Exact pairing & sources for GUAT-305 · 4 source statements
    Conditional

    GUAT-305 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-305 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 6, column group 1; exact model heading 415; assembly item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 6, column group 1; exact model heading 415; assembly item 5; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 5, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-305 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-305 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 5, column group 1; exact model heading 425; assembly item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 5, column group 1; exact model heading 425; assembly item 4; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 4, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-305 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-305 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 5, column group 1; exact model heading 428; assembly item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 5, column group 1; exact model heading 428; assembly item 4; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 4, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-305 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-305 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 5, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 6, column group 1; exact model heading 315; assembly item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 6, column group 1; exact model heading 315; assembly item 5; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-306 capacitor holder

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-306 as the capacitor holder. Its assembly-parts table requires replacement by a qualified technician. The model rows retain the separate manual and October 2024 parts-book listings; match each source revision and configuration before selecting a part.

    Exact pairing & sources for GUAT-306 · 4 source statements
    Conditional

    GUAT-306 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-306 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 7, column group 1; exact model heading 415; assembly item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 7, column group 1; exact model heading 415; assembly item 6; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 6, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-306 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-306 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 6, column group 1; exact model heading 425; assembly item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 6, column group 1; exact model heading 425; assembly item 5; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 5, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-306 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-306 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 6, column group 1; exact model heading 428; assembly item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 6, column group 1; exact model heading 428; assembly item 5; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 5, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-306 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-306 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 6, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 7, column group 1; exact model heading 315; assembly item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 7, column group 1; exact model heading 315; assembly item 6; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-307 motor assembly

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-307 as the motor assembly. Its assembly-parts table requires replacement by a qualified technician. The model rows retain the separate manual and October 2024 parts-book listings; match each source revision and configuration before selecting a part.

    Exact pairing & sources for GUAT-307 · 2 source statements
    Conditional

    GUAT-307 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-307 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 8, column group 1; exact model heading 415; assembly item 7 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 8, column group 1; exact model heading 415; assembly item 7; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-307 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-307 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 7, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 8, column group 1; exact model heading 315; assembly item 7 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 8, column group 1; exact model heading 315; assembly item 7; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-308 RPM wheel

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-308 as the RPM wheel. Its assembly-parts table requires replacement by a qualified technician. The model rows retain the separate manual and October 2024 parts-book listings; match each source revision and configuration before selecting a part.

    Exact pairing & sources for GUAT-308 · 3 source statements
    Conditional

    GUAT-308 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-308 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 8, column group 1; exact model heading 425; assembly item 7 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 8, column group 1; exact model heading 425; assembly item 7; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 7, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-308 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-308 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 8, column group 1; exact model heading 428; assembly item 7 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 8, column group 1; exact model heading 428; assembly item 7; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 7, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-308 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-308 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 8, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 9, column group 1; exact model heading 315; assembly item 8 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 9, column group 1; exact model heading 315; assembly item 8; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-309 logic board holder

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-309 as the logic board holder. Its assembly-parts table requires replacement by a qualified technician. The model rows retain the separate manual and October 2024 parts-book listings; match each source revision and configuration before selecting a part.

    Exact pairing & sources for GUAT-309 · 3 source statements
    Conditional

    GUAT-309 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-309 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 9, column group 1; exact model heading 425; assembly item 8 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 9, column group 1; exact model heading 425; assembly item 8; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 8, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-309 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-309 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 9, column group 1; exact model heading 428; assembly item 8 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 9, column group 1; exact model heading 428; assembly item 8; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 8, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-309 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-309 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 9, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 10, column group 1; exact model heading 315; assembly item 9 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 10, column group 1; exact model heading 315; assembly item 9; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-310

    GUAT-310 identifies the logic board in the Guardian 315 manual's opener assembly parts list. Confirm the printed 4-14 manual scope with a qualified technician.

    Exact pairing & sources for GUAT-310 · Conditional

    GUAT-310 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-310 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 10, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
  • Guardian GUAT-311 limit-system driving gear

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-311 as the limit-system driving gear. Its assembly-parts table requires replacement by a qualified technician. Keep the separate manual and October 2024 book scopes when selecting a part.

    Exact pairing & sources for GUAT-311 · 4 source statements
    Conditional

    GUAT-311 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-311 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 12, column group 1; exact model heading 415; assembly item 11 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 12, column group 1; exact model heading 415; assembly item 11; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 11, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-311 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-311 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 11, column group 1; exact model heading 425; assembly item 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 11, column group 1; exact model heading 425; assembly item 10; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 10, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-311 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-311 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 11, column group 1; exact model heading 428; assembly item 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 11, column group 1; exact model heading 428; assembly item 10; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 10, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-311 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-311 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 11, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 12, column group 1; exact model heading 315; assembly item 11 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 12, column group 1; exact model heading 315; assembly item 11; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-312 limit-system assembly

    The Guardian 315 manual, printed revision 4-14, identifies GUAT-312 as the limit-system assembly. Its assembly-parts table requires replacement by a qualified technician. Keep the separate manual and October 2024 book scopes when selecting a part.

    Exact pairing & sources for GUAT-312 · 4 source statements
    Conditional

    GUAT-312 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-312 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 13, column group 1; exact model heading 415; assembly item 12 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 13, column group 1; exact model heading 415; assembly item 12; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 12, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
    Conditional

    GUAT-312 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-312 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 12, column group 1; exact model heading 425; assembly item 11 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 12, column group 1; exact model heading 425; assembly item 11; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 11, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-312 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-312 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 12, column group 1; exact model heading 428; assembly item 11 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 12, column group 1; exact model heading 428; assembly item 11; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 11, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
    Conditional

    GUAT-312 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-312 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 12, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 13, column group 1; exact model heading 315; assembly item 12 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 13, column group 1; exact model heading 315; assembly item 12; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-313

    GUAT-313 identifies the opener cover in the Guardian 315 manual's opener assembly parts list. Confirm the printed 4-14 manual scope with a qualified technician.

    Exact pairing & sources for GUAT-313 · Conditional

    GUAT-313 is listed for the Guardian 315 opener assembly in the printed 4-14 manual; replacement requires a qualified technician.

    From GUAT-313 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Replacement by a qualified technician is required by this parts-table note.
    • Scope is the Guardian 315 manual with printed cover revision GDO Manual Revised: 4-14; no current-stock, changed-revision or other-model fitment is established.
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian 315 opener assembly parts, printed revision 4-14 · PDF page26 / printed page24, Opener Assembly Parts table item 13, exact part-number row · checked 2026-09-11 · GDO Manual Revised: 4-14
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 14, column group 1; exact model heading 315; assembly item 13 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 14, column group 1; exact model heading 315; assembly item 13; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
Shared scope and cautions for the following 3 references
Applies only within this source scope
  • Market: US
  • Model scope: 415
  • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
  • The source footnote for this assembly table requires replacement by a qualified technician.
  • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
  • Guardian GUAT-314 RPM wheel

    The Guardian 415 manual (04-21; GDOMU10A-12) identifies GUAT-314 as the RPM wheel and requires assembly-part replacement by a qualified technician. The October 2024 parts book separately lists it under 415 and 4150V. Match the exact model, source edition and installed configuration using the rows.

    Read the shared scope and cautions above

    Exact pairing & sources for GUAT-314 · Conditional

    GUAT-314 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-314 to 415

    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 9, column group 1; exact model heading 415; assembly item 8 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 9, column group 1; exact model heading 415; assembly item 8; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 8, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
  • Guardian GUAT-315 RPM reader module

    The Guardian 415 manual (04-21; GDOMU10A-12) identifies GUAT-315 as the RPM reader module and requires assembly-part replacement by a qualified technician. The October 2024 parts book separately lists it under 415 and 4150V. Match the exact model, source edition and installed configuration using the rows.

    Read the shared scope and cautions above

    Exact pairing & sources for GUAT-315 · Conditional

    GUAT-315 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-315 to 415

    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 10, column group 1; exact model heading 415; assembly item 9 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 10, column group 1; exact model heading 415; assembly item 9; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 9, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
  • Guardian GUAT-317

    GUAT-317 is identified in the book as opener cover. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Read the shared scope and cautions above

    Exact pairing & sources for GUAT-317 · Conditional

    GUAT-317 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-317 to 415

    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 14, column group 1; exact model heading 415; assembly item 13 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 14, column group 1; exact model heading 415; assembly item 13; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 13, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
  • Guardian GUAT-318

    GUAT-318 is identified in the book as back panel. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Exact pairing & sources for GUAT-318 · Conditional

    GUAT-318 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-318 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 15, column group 1; exact model heading 415; assembly item 14 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 15, column group 1; exact model heading 415; assembly item 14; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
  • Guardian GUAT-319 lamp plate with limit adjustment

    The Guardian 425 (9-17) and 428 (03-21) manuals identify GUAT-319 as the lamp plate with limit adjustment and require assembly-part replacement by a qualified technician. The October 2024 book separately lists it under 425, 428, 4250V and 4280V. Keep each source edition and configuration condition when selecting a part.

    Exact pairing & sources for GUAT-319 · 2 source statements
    Conditional

    GUAT-319 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-319 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 4, column group 1; exact model heading 425; assembly item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 4, column group 1; exact model heading 425; assembly item 3; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 3, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-319 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-319 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 4, column group 1; exact model heading 428; assembly item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 4, column group 1; exact model heading 428; assembly item 3; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 3, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-330

    GUAT-330 is identified in the book as logic board and end panel. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Exact pairing & sources for GUAT-330 · Conditional

    GUAT-330 is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-330 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 11, column group 1; exact model heading 415; assembly item 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 10, row 11, column group 1; exact model heading 415; assembly item 10; qualified-technician footnote immediately following native assembly table 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 10, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 4: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 5: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
  • Guardian GUAT-340 logic board

    The Guardian 425 (9-17) and 428 (03-21) manuals identify GUAT-340 as the logic board and require assembly-part replacement by a qualified technician. The October 2024 book separately lists it under 315, 425 and 428. Match the exact model, source edition and installed configuration using the rows.

    Exact pairing & sources for GUAT-340 · 3 source statements
    Conditional

    GUAT-340 is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-340 to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 11, column group 1; exact model heading 315; assembly item 10 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 5, row 11, column group 1; exact model heading 315; assembly item 10; qualified-technician footnote immediately following native assembly table 5 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-340 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-340 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 10, column group 1; exact model heading 425; assembly item 9 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 10, column group 1; exact model heading 425; assembly item 9; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 9, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-340 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-340 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 10, column group 1; exact model heading 428; assembly item 9 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 10, column group 1; exact model heading 428; assembly item 9; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 9, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-342 opener cover

    The October 2024 book lists GUAT-342 as the opener cover under 425 and 428. The 428 manual (03-21) also names GUAT-342, while the 425 manual (9-17) names GUAT-345. This source difference does not establish replacement or interchangeability. Retain the source-specific technician requirements and configuration conditions.

    Exact pairing & sources for GUAT-342 · 2 source statements
    Conditional

    GUAT-342 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-342 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 13, column group 1; exact model heading 425; assembly item 12 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 13, column group 1; exact model heading 425; assembly item 12; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-342 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-342 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 13, column group 1; exact model heading 428; assembly item 12 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 13, column group 1; exact model heading 428; assembly item 12; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 12, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-343 motor assembly

    The Guardian 428 manual (03-21) identifies GUAT-343 as the motor assembly and requires replacement by a qualified technician. The October 2024 book separately lists it under 428 and 4280V. Keep the GUAT prefix: GUDT-343 is a different logic-board identifier. Match the exact model and source edition.

    Exact pairing & sources for GUAT-343 · Conditional

    GUAT-343 is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-343 to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 428 manual (03-21; GDOMU16A-5): Only the exact 428 manual edition 03-21 / GDOMU16A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 7, column group 1; exact model heading 428; assembly item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 20, row 7, column group 1; exact model heading 428; assembly item 6; qualified-technician footnote immediately following native assembly table 20 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, assembly table item 6, exact part-number cell · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 4: GuardianGuardian 428 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 03-21; GDOMU16A-5
    • Source 5: GuardianGuardian 428 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 03-21; GDOMU16A-5
  • Guardian GUAT-345 opener cover

    The Guardian 425 manual (9-17; GDOMU11A-5) identifies GUAT-345 as the opener cover and requires assembly-part replacement by a qualified technician. The October 2024 book names GUAT-342 for this component role. These distinct source statements establish neither an alias, replacement, interchangeability nor a chronology conclusion.

    Exact pairing & sources for GUAT-345 · Conditional

    GUAT-345 is listed for exact model 425 in manual 9-17; GDOMU11A-5; all edition and configuration conditions apply.

    From GUAT-345 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 12, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
  • Guardian GUAT-346 motor assembly

    The Guardian 415 (04-21) and 425 (9-17) manuals identify GUAT-346 as the motor assembly and require replacement by a qualified technician. The October 2024 book separately lists it under 425 and 4150V. Keep these manual and book scopes distinct when checking the installed configuration.

    Exact pairing & sources for GUAT-346 · 2 source statements
    Conditional

    GUAT-346 is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-346 to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • The source footnote for this assembly table requires replacement by a qualified technician.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 7, column group 1; exact model heading 425; assembly item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 15, row 7, column group 1; exact model heading 425; assembly item 6; qualified-technician footnote immediately following native assembly table 15 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, assembly table item 6, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 4: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 5: GuardianGuardian 425 manual parts reference · PDF page 26 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    GUAT-346 is listed for exact model 415 in manual 04-21; GDOMU10A-12; all edition and configuration conditions apply.

    From GUAT-346 to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • In the 415 manual (04-21; GDOMU10A-12): Only the exact 415 manual edition 04-21 / GDOMU10A-12 is reviewed. No 415-3T, later edition, current stock or cross-model interchangeability is inferred. The assembly-parts table requires replacement by a qualified technician. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, assembly table item 7, exact part-number cell · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 2: GuardianGuardian 415 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 04-21; GDOMU10A-12
    • Source 3: GuardianGuardian 415 manual parts reference · PDF page 27 / printed page 25, qualified-technician replacement footnote below assembly table · checked 2026-09-12 · 04-21; GDOMU10A-12
  • Guardian PWLLSTN

    PWLLSTN is an exact label in the GU-0003 connection scope; retain the pre-wired application and counterpart requirements.

    Exact pairing & sources for PWLLSTN · Conditional

    GU-0003 connection scope for PWLLSTN; pre-wired installation and the listed counterpart are required.

    From GU-0003 to PWLLSTN

    Applies only within this source scope
    • Market: US
    • Model scope: 315, 415, 425, 615, 628
    • Pre-wired wall-console installation only.
    • Requires a counterpart opener 315, 415, 425, 615, 628.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 console hash footnote · checked 2026-09-11 · GDAMU04A-1
  • Guardian R2BCC remote control

    The Guardian parts book, cover dated October 1, 2024, lists R2BCC for 315, 415, 425, 428, 615, 628, 715BBU and 728B. The cited 425 and 628 manuals retain their own edition limits. Other reviewed manual entries use D1BCC for 415 and D3BCC for 428; those distinct numbers are not established as aliases or replacements.

    Exact pairing & sources for R2BCC · 4 source statements
    Conditional

    R2BCC is listed directly under model 315 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From R2BCC to 315

    Applies only within this source scope
    • Market: US
    • Model scope: 315
    • Exact model 315 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 4, row 5, column group 1; exact model heading 315; accessories item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    R2BCC is listed directly under model 415 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From R2BCC to 415

    Applies only within this source scope
    • Market: US
    • Model scope: 415
    • Exact model 415 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 9, row 5, column group 1; exact model heading 415; accessories item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    R2BCC is listed directly under model 425 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From R2BCC to 425

    Applies only within this source scope
    • Market: US
    • Model scope: 425
    • Exact model 425 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • In the 425 manual (9-17; GDOMU11A-5): Only the exact 425 manual edition 9-17 / GDOMU11A-5 is reviewed. No later edition, current stock or cross-model interchangeability is inferred. These requirements describe this manual edition only; they are not assigned to other source editions.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 14, row 5, column group 1; exact model heading 425; accessories item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 425 manual parts reference · PDF page 25 / printed page 24, accessories table item 4, physical table row 4, exact part-number cell · checked 2026-09-12 · 9-17; GDOMU11A-5
    • Source 3: GuardianGuardian 425 manual parts reference · PDF page 1, exact model and revision on cover · checked 2026-09-12 · 9-17; GDOMU11A-5
    Conditional

    R2BCC is listed directly under model 428 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From R2BCC to 428

    Applies only within this source scope
    • Market: US
    • Model scope: 428
    • Exact model 428 listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 19, row 5, column group 1; exact model heading 428; accessories item 4 · checked 2026-09-12 · Cover dated October 1, 2024

Before applying these details

  • Power labels are preserved as printed; they are not a cross-brand lifting comparison.
  • A manual archive does not establish current production or replacement-part availability.

Sources & scope

  1. Guardian official manual indexGuardian Access & Door Hardware · checked 2026-09-11
  2. Guardian 315 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 4-14
  3. Guardian 415 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 04-21; GDOMU10A-12
  4. Guardian 425 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 9-17; GDOMU11A-5
  5. Guardian 428 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 03-21; GDOMU16A-5

Anderson prepared this independent reference from the listed sources. It is not the manufacturer’s official support site, an installation inspection or a product test. Current stock, parts availability and warranty entitlement are not established by a listing.

One Request. Three Simple Steps.

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No need to leave this page. You can change your answers at any step.

  1. 1 The problem
  2. 2 Your location
  3. 3 Contact details

Your request is sent to Anderson. Appointment timing and any visit charge are confirmed with you.

What do you need help with?

Selected service: Opener repair. You can change this. Reason: Equipment: Guardian 315, 415, 425 and 428: Core Series manual selector.

If the door is crooked or partly open, keep clear. Do not adjust springs or cables yourself.

From our customers

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6 written Google reviews

Mama Bear

3 weeks ago

G
★★★★★
The service was fantastic- courteous, knowledgeable and honest.
Excerpt from Google review

Yehuda Robinov

a month ago

G
★★★★★
Very very professional guys good jobs good service

adam ricker

3 months ago

G
★★★★★
Great worker

David Avitan

3 months ago

G
★★★★★
They replaced three garage door motors for me, and the service was excellent from start to finish.
Excerpt from Google review

Mary larson

4 months ago

G
★★★★★
Very good service and very polite

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4 months ago

G
★★★★★
Very good work, polite and flexible in scheduling appointments.

Reviews from Google. Rating and relative dates checked October 1, 2026. This is a dated snapshot, not a live feed.

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