Craftsman
Garage Door Opener

Model #139650120 Official Craftsman garage door opener

Here are the diagrams and repair parts for Craftsman 139650120 garage door opener, as well as links to manuals and error code tables, if available.

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Showing 10 of 176 parts

Washer#3

Chassis assembly Diagram

Washer

Part #216A66

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

Washer Flat#22

Chassis assembly Diagram

Washer flat

Part #216A48

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

Nut#21

Chassis assembly Diagram

Nut

Part #133A58

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

Screw#8

Chassis assembly Diagram

Screw

Part #171A44

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

Screw#14

Motor assembly Diagram

Screw

Part #171A51

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

Retain Ring#23

Motor assembly Diagram

Retain ring

Part #158A7

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

Master Link#18

Rail assembly Diagram

Master link

Part #109A11

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

Nut#27

Rail assembly Diagram

Nut

Part #133A28

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

Screw#19

Chassis assembly Diagram

Screw

Part #171A33

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

Screw#24

Chassis assembly Diagram

Screw

Part #171A162

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

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