Craftsman
Garage Door Opener

Model #139664300 Craftsman garage door opener

Here are the diagrams and repair parts for Craftsman 139664300 garage door opener, as well as links to manuals and error code tables, if available.

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    Showing 10 of 91 parts

    E-Ring

    #5

    Functional replacement parts Diagram

    E-ring

    Part #158A30

    The manufacturer no longer makes this part, and there's no substitute part

    Nut

    #17

    Rail assembly parts Diagram

    Nut

    Part #133A28

    The manufacturer no longer makes this part, and there's no substitute part

    Master Link

    #14

    Rail assembly parts Diagram

    Master link

    Part #1A995

    The manufacturer no longer makes this part, and there's no substitute part

    Belt

    #30

    Functional replacement parts Diagram

    Belt

    Part #20A3

    The manufacturer no longer makes this part, and there's no substitute part

    Screw

    #1

    Functional replacement parts Diagram

    Screw

    Part #171A74

    The manufacturer no longer makes this part, and there's no substitute part

    Screw

    #32

    Functional replacement parts Diagram

    Screw

    Part #171A175

    The manufacturer no longer makes this part, and there's no substitute part

    Nut

    #8

    Functional replacement parts Diagram

    Nut

    Part #133A106

    The manufacturer no longer makes this part, and there's no substitute part

    Lock Nut

    #18

    Rail assembly parts Diagram

    Lock nut

    Part #133A87

    The manufacturer no longer makes this part, and there's no substitute part

    Thread-Forming Screw, 8-pack

    #14

    Functional replacement parts Diagram

    Thread-forming screw, 8-pack

    Part #STD610805
    ?
    Manufacturer substitution
    This part replaces 171A44. Substitute parts can look different from the original.
    This part replaces 171A44
    This item is not returnable
    $2.79

    In Stock

    Hex Bolt, 5-pack

    #8

    Rail assembly parts Diagram

    Hex bolt, 5-pack

    Part #STD523710
    ?
    Manufacturer substitution
    This part replaces 171A24. Substitute parts can look different from the original.
    This part replaces 171A24
    This item is not returnable
    $2.99

    In Stock

    Symptoms common to all garage door openers

    Choose a symptom to see related garage door opener repairs.

    Things to do: check garage door travel, tighten brackets and fasteners, test safety sensors, check travel limits and force limits
    Main causes: loose fasteners, broken brackets, need preventive maintenance, worn drive gears, loose or worn belt, loose chain
    Main causes: faulty logic control board, bad RPM sensor, broken gears in the drive system, bad drive motor
    Main causes: neighbor's remote programmed at the same time as yours, faulty wall control wiring, bad wall control unit
    Main causes: garage door locked, damaged garage door tracks, up-force setting needs adjustment, RPM sensor failure, bad drive motor
    Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors need adjustment
    Main causes: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage door tracks
    Main causes: garage door opener misaligned, travel limits need adjustment, bad travel limit switches, faulty logic control board

    Repair guides common to all garage door openers

    These step-by-step repair guides will help you safely fix what’s broken on your garage door opener.

    How to replace a chain-drive garage door opener gear and sprocket assembly

    Learn how to replace the gear and sprocket assembly on your garage door opener if the drive motor runs but the door won't move.

    Repair difficulty
    Time required
     60 minutes or less
    How to replace a garage door opener logic board

    The logic board is the brains of the garage door opener. If the remote doesn't work or the door doesn't open and close properly, the logic board could be the problem. This repair guide shows you how to fix it yourself.

    Repair difficulty
    Time required
     60 minutes or less
    How to replace a garage door opener drive chain and cable assembly

    If your garage door won’t move, the chain and cable assembly on your garage door opener could be broken. Follow these step-by-step instructions to replace it.

    Repair difficulty
    Time required
     60 minutes or less

    Articles and videos common to all garage door openers

    Use the advice and tips in these articles and videos to get the most out of your garage door opener.

    December 1, 2020

    Garage door won't close/safety sensor troubleshooting video—lights blink 10 times

    By Sears PartsDirect staff

    Learn how to check and fix safety sensor and wiring problems.

    June 24, 2016

    Garage door opener remotes won't work video

    By Sears PartsDirect staff

    If your remotes don't work, you might need to disable the lock feature, eliminate RF interference or check the batteries.

    January 1, 1970

    How to tell if a fuse is blown

    By Lyle Weischwill

    Learn how to tell whether a fuse is blown