LiftMaster, Chamberlain, Genie, Wayne Dalton, Clopay, and Amarr.
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.
United States documentationSources checked 2026-09-11Independent Anderson reference
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.
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.
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.
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.
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
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
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
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.
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
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
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
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.
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.
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.
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.
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.
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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.
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
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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
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
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
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.
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.
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.
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.
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.
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
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
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.
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.
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
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
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 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.
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.
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.
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
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
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
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.
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.
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
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
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
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 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.
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.
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.
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.
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.
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.
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.
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
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.
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
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
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.
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
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.
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.
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
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
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.
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.
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
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.
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
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.
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.
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.
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
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.
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.
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.
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.
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
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.
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.
Share the equipment label and symptom. Availability is confirmed for the exact service address before scheduling. This reference does not establish a fault, part fitment, or repair availability for a particular model.
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