Chamberlain garage door opener error codes

Chamberlain

These error code explanations can help you diagnose a problem with your Chamberlain garage door opener. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for garage door openers, major appliances, lawn and garden equipment, vacuum cleaners and more. Search for your model number to find a complete list of replacement parts for your garage door opener.

Chamberlain garage door openers with yellow or blue force adjustment dials flash the LED next to the Learn button to indicate a component failure.

Error Code
Condition
DIY advice
1 flash

Sensors are completely misaligned or sensor wires are broken

Check/Repair

Realign the safety reversing sensors so that the LED on the receiving sensor glows steadily. Reconnect any loose wires between the safety reversing sensors and the logic board. Replace the safety reversing sensor wires if damaged.

Possible parts
Safety reversing sensor wires
2 flashes

Safety reversing sensor wires are shorted or the safety reversing sensor wires are reversed on the logic board

Check/Repair

Repair or replace any damaged wires between the logic board and the safety reversing sensors. Connect the safety reversing sensor wires on the logic board following the guidelines in your owner's manual.

Possible parts
Safety reversing sensor wires
3 flashes

Wall mounted door control wires are shorted

Check/Repair

Repair or replace any damaged wires between the logic board and the wall mounted door control.

Possible parts
Wall mounted door control wires
4 flashes

Safety reversing sensors are slightly misaligned

Check/Repair

Realign the safety reversing sensors so that the LED on the receiving sensor glows steadily.

Possible parts
5 flashes

Motor overheated

Check/Repair

The motor can overheat if the door is opened and closed several times in a row. Unplug the garage door opener to reset the logic board. Allow the motor to cool for about 15 minutes before restoring power and using the garage door opener. Pull the emergency door release and check the up-and-down travel of the garage door for binding. Repair the garage door if it doesn't travel smoothly. If it overheats after a single use and the garage door travel is smooth, replace the motor.

How-to help
Possible parts
Motor, Garage door components
6 flashes

Motor circuit failure

Check/Repair

Replace the logic board.

How-to help
Possible parts
Logic board
Rapid flashing

Signal is being received from a compatible remote transmitter

Check/Repair

The logic board is receiving the signal from a compatible remote transmitter. Program the remote transmitter device to link to the logic board. Follow the instructions in your owner's manual to program the remote.

Possible parts

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: garage door locked, damaged garage door tracks, up-force setting needs adjustment, RPM sensor failure, bad drive motor
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 opener misaligned, travel limits need adjustment, bad travel limit switches, faulty logic control board
Main causes: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage door tracks
Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors need adjustment

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.

June 20, 2016
By Lyle Weischwill
How to replace a garage door opener battery

The garage door won't move during a power outage if the battery is dead. Here’s how to replace it.

Repair difficulty
Time required
 15 minutes or less
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 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

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.

May 11, 2018

Garage door won't move: motor and travel troubleshooting video

By Sears PartsDirect staff

Diagnose and repair problems if your garage door won’t move and the motor unit indicator light flashes 5 times.

October 26, 2016

How to repair broken or damaged wires video

By Sears PartsDirect staff

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

March 4, 2015

How to maintain a garage door opener

By Sears PartsDirect staff

Learn what maintenance a garage door opener needs, and when to perform the maintenance.