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Garage Door Opener

Model # 139664320 Official Craftsman garage door opener

Here are the diagrams and repair parts for Official Craftsman 139664320 garage door opener, as well as links to manuals and error code tables, if available.

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Browse Parts for139664320 Garage Door Opener

  • Screw 171A183
    #1

    Chassis assembly diagram

    Screw

    Part #171A183

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

  • Transmitter 6642
    #10

    Receiver and transmitter diagram

    Transmitter

    Part #6642

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

  • Screw 171A262
    #12

    Chassis assembly diagram

    Screw

    Part #171A262

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

  • Bushing 13A46
    #22

    Chassis assembly diagram

    Bushing

    Part #13A46

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

  • Ob Swtch Asm 4A1248
    #18

    Chassis assembly diagram

    Ob swtch asm

    Part #4A1248

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

  • Sw Block 16C24
    #34D

    Chassis assembly diagram

    Sw block

    Part #16C24

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

  • Screw 171A24
    #26

    Rail assembly diagram

    Screw

    Part #171A24

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

  • Screw 171A274
    #6

    Receiver and transmitter diagram

    Screw

    Part #171A274

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

  • Clevis Pin 146A21
    #28

    Rail assembly diagram

    Clevis pin

    Part #146A21

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

  • Roll Pin 146A33
    #1

    Rail assembly diagram

    Roll pin

    Part #146A33

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

Most common symptoms to help you fix your garage door openers

Choose a symptom to see related garage door opener repairs.

Main causes: garage door opener misaligned, travel limits need adjustment, bad travel limit switches, faulty logic contr…

Main causes: garage door locked, damaged garage door tracks, up-force setting needs adjustment, RPM sensor failure, bad …

Main causes: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage…

Things to do: check garage door travel, tighten brackets and fasteners, test safety sensors, check travel limits and for…

Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors n…

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: loose fasteners, broken brackets, need preventive maintenance, worn drive gears, loose or worn belt, loose …

Most common repair guides to help fix your 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

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'…

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

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 p…

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

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 st…

Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your garage door openers

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

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

How to program garage remote controls

How to program garage remote controls

This video covers 5 different wall control units and universal remotes.…

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