DIY garage door opener repair

If it seems like aliens have control of your garage door opener because it opens or closes by itself, works intermittently or just won't work at all, Sears PartsDirect can help. From error code charts to troubleshooting and repair guide videos, we provide expert help so you can regain control of your own garage door opener.

Do the motor unit lights flash a repeating pattern? Those flashing lights are error codes telling you what's wrong with your garage door opener. Find the pattern of your unit's flashing lights on our error code charts to find out the problem. Once you figure out which part to replace, follow the steps in our DIY repair guides to replace the broken part.

If you still haven't figured out the problem, our garage door opener articles and videos can help. From troubleshooting problems with safety sensor system to how and when to make force adjustments to why your garage door remotes won't work, our videos will walk you through the problem and how to fix it.

Looking for an owner’s manual or a complete list of replacement parts for your garage door opener? Search for your model number to find the information you need.

Garage Door Openers

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
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 step-by-step instructions to replace it.

Repair difficulty
Time required
 60 minutes or less

Articles and videos common to all garage door openers

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

December 1, 2020

Garage door won't close/safety sensor troubleshooting video—lights blink 10 times

By Sears PartsDirect staff

Learn how to check and fix safety sensor and wiring problems.

June 24, 2016

Garage door opener remotes won't work video

By Sears PartsDirect staff

If your remotes don't work, you might need to disable the lock feature, eliminate RF interference or check the batteries.

January 1, 1970

How to tell if a fuse is blown

By Lyle Weischwill

Learn how to tell whether a fuse is blown