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Guardian / Garage door opener / Family guide

Guardian 615 and 628: legacy Pro Series manual selector

These Pro Series models have different printed power labels and separate manuals.

United States documentationSources checked 2026-09-11Independent Anderson reference

Match the model before choosing a document

Identifier: Pro Series 615 / 628. This guide compares a family or related models. Use the exact configuration on your label.

Models covered: 615, 628. They are separate configurations; compare the applicable facts and documents below.

The 615 cover prints 1/2 HP; the 628 cover prints 3/4 HP. Use the model number, not only the Pro Series name, to choose a manual.

The 615 manual describes the serial label on the side panel; the 628 manual describes it on top. Retain that information when contacting Guardian, without publishing a personal serial number.

628FCA has separate audio-console documentation. Its suffix identifies a distinct record rather than another spelling of 628.

Documented specifications

Values apply to the configuration named in each row. Follow the source for its exact scope.
615 printed power label1/2 HPSource: Guardian 615 owner manual · Cover
628 printed power label3/4 HPSource: Guardian 628 owner manual · Cover
628 motor typeDC motorSource: Guardian 628 owner manual · Printed page 26 parts table
628 lamp requirementA19 E26 incandescent, 100 W maximumThis is the instruction in the linked 09-17 revision; do not infer LED compatibility.Source: Guardian 628 owner manual · Printed page 11

Official documents & support

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

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

2 of 2 listed documents shown.

  • owner manual

    Cover identifies 615 and revision 10-14. Scanned cover was visually reviewed.

    Models: 615enDocument: 10-14; GDOMU12A-1United States
  • owner manual

    Cover identifies 628 and 09-17; not 628FCA.

    Models: 628enDocument: 09-17; GDOMU01A-8United States

Parts & related references

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

  • Guardian 1-FDCC door control console

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

    Exact pairing & sources for 1-FDCC · 2 source statements
    Conditional

    1-FDCC is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 1-FDCC to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 24, row 5, column group 1; exact model heading 615; accessories item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    1-FDCC is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 1-FDCC to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 29, row 8, column group 1; exact model heading 628; accessories item 7 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Accessories table item 7, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian 3-FDCC deluxe door control console

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

    Exact pairing & sources for 3-FDCC · 2 source statements
    Conditional

    3-FDCC is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 3-FDCC to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 24, row 6, column group 1; exact model heading 615; accessories item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    3-FDCC is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From 3-FDCC to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 29, row 5, column group 1; exact model heading 628; accessories item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Accessories table item 4, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian DLXWLLSTN

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

    Exact pairing & sources for DLXWLLSTN · Conditional

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

    From GU-0003 to DLXWLLSTN

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

  • Guardian GU-0003

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

    Exact pairing & sources for GU-0003 · 4 source statements
    Conditional

    GU-0003 connection scope for 615; pre-wired installation and the listed counterpart are required.

    From GU-0003 to 615

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

    GU-0003 connection scope for 628; pre-wired installation and the listed counterpart are required.

    From GU-0003 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Pre-wired wall-console installation only.
    • Requires the counterpart console PWLLSTN or DLXWLLSTN.
    • Confirm the complete opener and console combination and follow the official electrical connection and polarity requirements.
    • Source 1: GuardianGuardian GU-0003 pre-wired console connector scope · Page 1 opener asterisk footnote · checked 2026-09-11 · GDAMU04A-1
    • Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 29, row 10, column group 1; exact model heading 628; accessories item 9 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

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

    From GU-0003 to DLXWLLSTN

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

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

    From GU-0003 to PWLLSTN

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

  • Guardian GUAT-022 door bracket

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

    Exact pairing & sources for GUAT-022 · 2 source statements
    Conditional

    GUAT-022 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-022 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 22, row 3, column group 1; exact model heading 615; installation item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-022 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-022 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 27, row 3, column group 1; exact model heading 628; installation item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Installation Parts table item 2, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUAT-023 installation hardware bag

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

    Exact pairing & sources for GUAT-023 · 2 source statements
    Conditional

    GUAT-023 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-023 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 22, row 4, column group 1; exact model heading 615; installation item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-023 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-023 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 27, row 4, column group 1; exact model heading 628; installation item 3 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Installation Parts table item 3, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUAT-024 curved door arm

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

    Exact pairing & sources for GUAT-024 · 2 source statements
    Conditional

    GUAT-024 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-024 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 22, row 5, column group 1; exact model heading 615; installation item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-024 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-024 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 27, row 5, column group 1; exact model heading 628; installation item 4 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Installation Parts table item 4, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUAT-025 straight door arm

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

    Exact pairing & sources for GUAT-025 · 2 source statements
    Conditional

    GUAT-025 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-025 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 22, row 6, column group 1; exact model heading 615; installation item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-025 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-025 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 27, row 6, column group 1; exact model heading 628; installation item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Installation Parts table item 5, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUAT-026 emergency release handle and rope

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

    Exact pairing & sources for GUAT-026 · 2 source statements
    Conditional

    GUAT-026 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-026 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 22, row 7, column group 1; exact model heading 615; installation item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-026 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-026 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 27, row 7, column group 1; exact model heading 628; installation item 6 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Installation Parts table item 6, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUAT-027 header bracket

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

    Exact pairing & sources for GUAT-027 · 2 source statements
    Conditional

    GUAT-027 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-027 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 22, row 2, column group 1; exact model heading 615; installation item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-027 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-027 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 27, row 2, column group 1; exact model heading 628; installation item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Installation Parts table item 1, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUAT-201 photo-eye safety system

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

    Exact pairing & sources for GUAT-201 · 2 source statements
    Conditional

    GUAT-201 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-201 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 24, row 2, column group 1; exact model heading 615; accessories item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUAT-201 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUAT-201 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 29, row 2, column group 1; exact model heading 628; accessories item 1 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Accessories table item 1, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-301 chassis

    The Guardian 628 (09-17) and 600SL (6-13) manuals identify GUDT-301 as the chassis and require replacement by a qualified technician. The separate 628FCA (08-16) manual and October 2024 book listings retain their own scopes. Preserve the FCA suffix and the 600SL AC 120 V / 60 Hz edition condition.

    Exact pairing & sources for GUDT-301 · 2 source statements
    Conditional

    GUDT-301 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-301 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 2, column group 1; exact model heading 615; 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 25, row 2, column group 1; exact model heading 615; assembly item 1; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUDT-301 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-301 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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 assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 30, row 2, column group 1; exact model heading 628; 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 30, row 2, column group 1; exact model heading 628; assembly item 1; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 1, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-302 transformer

    The Guardian 628 (09-17) and 600SL (6-13) manuals identify GUDT-302 as the transformer and require replacement by a qualified technician. The October 2024 book separately lists it under 628. Keep the 600SL AC 120 V / 60 Hz manual-edition condition; it does not specify the transformer output rating.

    Exact pairing & sources for GUDT-302 · Conditional

    GUDT-302 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-302 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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 assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 30, row 3, column group 1; exact model heading 628; 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 30, row 3, column group 1; exact model heading 628; assembly item 2; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 2, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-304

    GUDT-304 is identified in the book as position encoder (pre 02/2012). Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Exact pairing & sources for GUDT-304 · Conditional

    GUDT-304 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-304 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This model-specific row states (Pre 02/2012). Retain the printed month boundary; no exact calendar-day cutoff is established by this review.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 30, row 5, column group 1, stacked entry 1; exact model heading 628; 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 30, row 5, column group 1, stacked entry 1; exact model heading 628; assembly item 4; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024

  • Guardian GUDT-305

    GUDT-305 is identified in the book as dc motor. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Exact pairing & sources for GUDT-305 · Conditional

    GUDT-305 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-305 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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 30, row 6, column group 1; exact model heading 628; 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 30, row 6, column group 1; exact model heading 628; assembly item 5; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024

  • Guardian GUDT-308 opener cover

    The Guardian 600SL manual (6-13; GSOMU01A-1) identifies GUDT-308 as the opener cover and requires replacement by a qualified technician. The October 2024 book separately lists it under 628. Keep the exact source scopes and the 600SL AC 120 V / 60 Hz edition condition.

    Exact pairing & sources for GUDT-308 · Conditional

    GUDT-308 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-308 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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 30, row 7, column group 1; exact model heading 628; 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 30, row 7, column group 1; exact model heading 628; assembly item 8; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024

  • Guardian GUDT-309 lamp plate

    The Guardian 628 (09-17) and 600SL (6-13) manuals identify GUDT-309 as the lamp plate and require replacement by a qualified technician. The separate 628FCA (08-16) manual and October 2024 book listings retain their own scopes. Preserve the FCA suffix and the 600SL AC 120 V / 60 Hz edition condition.

    Exact pairing & sources for GUDT-309 · 2 source statements
    Conditional

    GUDT-309 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-309 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 8, column group 1; exact model heading 615; 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 25, row 8, column group 1; exact model heading 615; assembly item 9; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUDT-309 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-309 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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 assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 30, row 8, column group 1; exact model heading 628; 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 30, row 8, column group 1; exact model heading 628; assembly item 9; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 9, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-310 light lens

    The 628 manual (09-17) calls GUDT-310 a light lens, the 600SL manual (6-13) calls it a lamp dome, and the 628FCA manual (08-16) calls it a light lens cover. The 628 and 600SL assembly tables require replacement by a qualified technician. Keep the separate manual and October 2024 book scopes when selecting a part.

    Exact pairing & sources for GUDT-310 · 2 source statements
    Conditional

    GUDT-310 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-310 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 9, column group 1; exact model heading 615; 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 25, row 9, column group 1; exact model heading 615; assembly item 10; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUDT-310 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-310 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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 assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 30, row 9, column group 1; exact model heading 628; 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 30, row 9, column group 1; exact model heading 628; assembly item 10; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 10, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-311 lamp lens clip

    The October 2024 book calls GUDT-311 a lamp lens clip under 615, a lamp dome clip under 628 and 628FCA, and a light lens clip under 715BBU and 728B. The 628 (09-17) and 600SL (6-13) manuals require replacement by a qualified technician. Match the exact source edition and configuration.

    Exact pairing & sources for GUDT-311 · 2 source statements
    Conditional

    GUDT-311 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-311 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 10, column group 1; exact model heading 615; 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 25, row 10, column group 1; exact model heading 615; assembly item 11; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUDT-311 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-311 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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 assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 30, row 10, column group 1; exact model heading 628; 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 30, row 10, column group 1; exact model heading 628; assembly item 11; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 11, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-313 DC motor with encoder shaft

    The 628 (09-17), 600SL (6-13) and 628FCA (08-16) manuals identify GUDT-313 as the DC motor with encoder shaft. The 628 and 600SL assembly tables require replacement by a qualified technician. Keep the separate October 2024 book wording; an included shaft does not establish a motor-to-encoder replacement relationship.

    Exact pairing & sources for GUDT-313 · 2 source statements
    Conditional

    GUDT-313 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-313 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 5, column group 1; exact model heading 615; 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 25, row 5, column group 1; exact model heading 615; assembly item 4; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUDT-313 is listed in the exact 628 manual. The source revision and all stated conditions apply.

    From GUDT-313 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • The assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 4, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-314 encoder module

    The October 2024 book identifies GUDT-314 as an encoder module; its 628 row says position encoder (Post 02/2012). This month boundary applies to that model-specific row and does not establish an exact calendar-day cutoff. Keep the separate manual editions, technician requirements and other model conditions.

    Exact pairing & sources for GUDT-314 · 2 source statements
    Conditional

    GUDT-314 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-314 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 6, column group 1; exact model heading 615; 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 25, row 6, column group 1; exact model heading 615; assembly item 5; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    GUDT-314 is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-314 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This model-specific row states (Post 02/2012). Retain the printed month boundary; no exact calendar-day cutoff is established by this review.
    • The assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 30, row 5, column group 1, stacked entry 2; exact model heading 628; 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 30, row 5, column group 1, stacked entry 2; exact model heading 628; assembly item 4; qualified-technician footnote immediately following native assembly table 30 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 3: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 5, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-315

    GUDT-315 is identified in the book as transformer. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Exact pairing & sources for GUDT-315 · Conditional

    GUDT-315 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-315 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 3, column group 1; exact model heading 615; 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 25, row 3, column group 1; exact model heading 615; assembly item 2; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024

  • Guardian GUDT-316

    GUDT-316 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.

    Exact pairing & sources for GUDT-316 · Conditional

    GUDT-316 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-316 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 7, column group 1; exact model heading 615; 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 25, row 7, column group 1; exact model heading 615; assembly item 8; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024

  • Guardian GUDT-320

    GUDT-320 identifies the logic board in the cited 628 manual. Exact model and source-edition limits apply.

    Exact pairing & sources for GUDT-320 · Conditional

    GUDT-320 is listed in the exact 628 manual. The source revision and all stated conditions apply.

    From GUDT-320 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • The assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 3, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian GUDT-331

    GUDT-331 is identified in the book as logic board and end panel assembly. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Exact pairing & sources for GUDT-331 · Conditional

    GUDT-331 is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From GUDT-331 to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 25, row 4, column group 1; exact model heading 615; 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 25, row 4, column group 1; exact model heading 615; assembly item 3; qualified-technician footnote immediately following native assembly table 25 · checked 2026-09-12 · Cover dated October 1, 2024

  • Guardian GUDT-333

    GUDT-333 identifies the opener cover in the cited 628 manual. Exact model and source-edition limits apply.

    Exact pairing & sources for GUDT-333 · Conditional

    GUDT-333 is listed in the exact 628 manual. The source revision and all stated conditions apply.

    From GUDT-333 to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • The assembly-parts table requires replacement by a qualified technician.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 26 / printed page 26, Opener Assembly Parts table item 8, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian P3BCC

    P3BCC is identified in the book as premium 3-button remote control. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.

    Exact pairing & sources for P3BCC · Conditional

    P3BCC is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From P3BCC to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • The premium three-button remote is marked optional in the inventory on printed page 3; it is not asserted to be included with every opener.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 29, row 6, column group 1; exact model heading 628; accessories item 5 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Accessories table item 5, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

  • Guardian PWLLSTN

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

    Exact pairing & sources for PWLLSTN · Conditional

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

    From GU-0003 to PWLLSTN

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

  • Guardian R2BCC remote control

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

    Exact pairing & sources for R2BCC · 2 source statements
    Conditional

    R2BCC is listed directly under model 615 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From R2BCC to 615

    Applies only within this source scope
    • Market: US
    • Model scope: 615
    • Exact model 615 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 24, row 3, column group 1; exact model heading 615; accessories item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    Conditional

    R2BCC is listed directly under model 628 in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.

    From R2BCC to 628

    Applies only within this source scope
    • Market: US
    • Model scope: 628
    • Exact model 628 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.
    • This is the exact 628 manual with printed revision 09-17 and code GDOMU01A-8. Current stock, later revisions, 628FCA and other models are not established.
    • Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX native table 29, row 3, column group 1; exact model heading 628; accessories item 2 · checked 2026-09-12 · Cover dated October 1, 2024
    • Source 2: GuardianGuardian 628 manual: reviewed parts and hardware inventory · PDF page 25 / printed page 25, Accessories table item 2, exact Part No. row · checked 2026-09-12 · 09-17; GDOMU01A-8

Before applying these details

  • Printed HP labels are retained without converting DC output to AC horsepower.
  • Confirm any newer replacement-lamp guidance with Guardian.

Sources & scope

  1. Guardian 615 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 10-14; GDOMU12A-1
  2. Guardian 628 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 09-17; GDOMU01A-8
  3. Guardian 628FCA owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 08-16; GDOMU14A-2

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.

Describe the symptom

Browse the troubleshooting guide

Troubleshooting guides explain observations; they do not identify a failed part from a model number.

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Selected service: Opener repair. You can change this. Reason: Equipment: Guardian 615 and 628: legacy Pro Series manual selector.

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

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Mama Bear

3 weeks ago

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★★★★★
The service was fantastic- courteous, knowledgeable and honest.
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a month ago

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

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3 months ago

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★★★★★
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David Avitan

3 months ago

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They replaced three garage door motors for me, and the service was excellent from start to finish.
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4 months ago

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