Craftsman
Garage Door Opener

Model # 139663953 Official Craftsman garage door opener

Here are the diagrams and repair parts for Official Craftsman 139663953 garage door opener, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 90 parts  |

Master Link 1A995
#15

Rail assembly diagram

Master link

Part #1A995

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

Screw 171A273
#4

Chassis assembly parts diagram

Screw

Part #171A273

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

Lock Nut STD541425
#19

Rail assembly diagram

Lock nut

Part #STD541425

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

Lock Washer, 5/16-in, 8-pack STD551131
#25

Rail assembly diagram

Lock washer, 5/16-in, 8-pack

Part #STD551131

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

Chassis Assembly 4A1258
#8

Chassis assembly parts diagram

Chassis assembly

Part #4A1258

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

Screw 171A183
#1

Chassis assembly parts diagram

Screw

Part #171A183

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

Screw 171A184
#23

Rail assembly diagram

Screw

Part #171A184

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

Screw 171A28
#30

Rail assembly diagram

Screw

Part #171A28

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

Lamp Relay 160B44
#9A

Chassis assembly parts diagram

Lamp relay

Part #160B44

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

Light Socket 175B79
#26

Chassis assembly parts diagram

Light socket

Part #175B79

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: neighbor's remote programmed at the same time as yours, faulty wall control wiring, bad wall control unit…

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

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

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

Main causes: faulty logic control board, bad RPM sensor, broken gears in the drive system, bad drive motor…

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

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 motor

How to replace a chain-drive garage door opener motor

Get your garage door moving again by replacing a defective motor in your garage door opener.…

Repair difficulty
Time required
 60 minutes or less
How to replace a chain-drive garage door opener RPM sensor

How to replace a chain-drive garage door opener RPM sensor

Learn how to replace the RPM sensor if the door only moves 6 to 8 inches at a time and the LED light flashes 5 times. …

Repair difficulty
Time required
 60 minutes or less
How to replace a chain-drive garage door opener drive and worm gears

How to replace a chain-drive garage door opener drive and worm gears

If your garage door won’t move, the drive and worm gears could be broken. This guide will help you replace the gears.…

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.

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 repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

How to open a garage door with an opener manually

How to open a garage door with an opener manually

Learn how to open a garage door manually if power to your garage door opener fails.…