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Craftsman
Garage Door Opener

Model # 139663820 Official Craftsman garage door opener

Here are the diagrams and repair parts for Official Craftsman 139663820 garage door opener, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 96 parts  |
Transmitter 6634
#5A

Radio controls diagram

Transmitter

Part #6634

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

Chassis Assembly 4A1258
#9

Chassis assembly diagram

Chassis assembly

Part #4A1258

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

Ret Spacer 4A1273
#3

Chassis assembly diagram

Ret spacer

Part #4A1273

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

Cbl Pul Brk 4A1229
#6

Rail assembly diagram

Cbl pul brk

Part #4A1229

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

Circ Brd Asy 53855
#7

Radio controls diagram

Circ brd asy

Part #53855

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

Cover 31C230
#2

Chassis assembly diagram

Cover

Part #31C230

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

Interrupter 4A1382
#29

Chassis assembly diagram

Interrupter

Part #4A1382

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

Screw STD600803
#1

Chassis assembly diagram

Screw

Part #STD600803

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

Light Socket 1A2459
#38

Chassis assembly diagram

Light socket

Part #1A2459

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

Screw 171A194
#4

Radio controls diagram

Screw

Part #171A194

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.

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Why does my garage door opener open and close by itself?

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

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Why doesn't my garage door opener work?

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

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Why is my garage door opener noisy?

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

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What preventive maintenance does my garage door opener need?

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

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Why won't my garage door opener fully open or close the garage door?

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

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Why won't my garage door opener open the garage door?

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

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Why does my garage door opener work intermittently?

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

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Why does my garage door opener reverse on its own?

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

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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.

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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'…

Read more
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…

Read more
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…

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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.

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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.…

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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.…

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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.…

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