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Craftsman
Garage Door Opener

Model # 139664300 Official Craftsman garage door opener

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

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Error Codes

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ALL PARTS
Showing 10 of 91 parts  |
Nut 133A106
#8

Functional replacement parts diagram

Nut

Part #133A106

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

Transmitter 6642

#NI

All parts diagram

Transmitter

Part #6642

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

Screw 171A184
Screw

Part #171A184

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

Screw 171A183
#16

Functional replacement parts diagram

Screw

Part #171A183

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

T-rail Pkg 2A184

#NI

All parts diagram

T-rail pkg

Part #2A184

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

Harness Assembly 1B2216

#NI

All parts diagram

Harness assembly

Part #1B2216

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

Rev Switch 31B129
#46

Functional replacement parts diagram

Rev switch

Part #31B129

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

Screw 171A74
#1

Functional replacement parts diagram

Screw

Part #171A74

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

Ckt Board R 4A1352
#7

Radio controls (receiver) diagram

Ckt board r

Part #4A1352

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

Lock Nut 133A87
#18

Rail assembly parts diagram

Lock nut

Part #133A87

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 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 reverse on its own?

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

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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 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 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 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 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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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'…

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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…

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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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