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Chamberlain WD832 and HD620 model garage door opener
These error code explanations can help you diagnose a problem with your Chamberlain garage door opener model WD832KEV or HD620EV. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for garage door openers, refrigerators, other major appliances, lawn and garden equipment, water softeners/heaters and more. Search for your model number to find a complete list of replacements parts available for your garage door opener.
Error Codes
Error Code
1 Up flash, 1 Down flash
Condition
Safety sensors aren’t installed or connected, or sensor wires are broken
Check / Repair
Inspect the safety sensor wire connections on the motor unit and reconnect any loose wires. Examine the sensor wires for damage or breaks. Repair or replace damaged wires. Replace the safety sensors if defective.
Possible Parts Required
Safety sensor wire, safety sensor kit
Error Code
1 Up flash, 2 Down flashes
Condition
Safety sensor wires are shorted or reversed
Check / Repair
Inspect safety sensor wires for incorrect connection to the control panel. Connect the wires properly. Check the safety sensor wiring for damage. Repair or replace damaged wiring.
Possible Parts Required
Safety sensor wire
Error Code
1 Up flash, 3 Down flashes
Condition
Wall control defective or wall control wires are broken
Check / Repair
Examine the wall control wires. Reconnect loose wiring connections. Repair or replace damaged wires. Replace the wall control if defective.
Possible Parts Required
Wall control wire, wall control
Error Code
1 Up flash, 4 Down flashes
Condition
Misaligned or obstructed safety sensors
Check / Repair
Realign the safety sensors so the LED lights on both sensors turn on. Remove any obstruction between the sensors.
Error Code
1 Up flash, 5 Down flashes
Condition
Garage door binding, defective logic board or bad travel module
Check / Repair
Unlock the latch on the garage door if it's engaged. Check for bent door tracks or obstructions in the tracks. Pull the emergency door release to disconnect the garage door from the opener trolley. Open and close the door manually, checking for smooth door operation. Have a garage door repair technician fix the door and tracks if the door binds up on the tracks. Run the garage door opener to move the trolley back and forth along the garage door opener rail to check for binding. Replace the rail or trolley if damaged. If the garage door travels smoothly and you find no rail or trolley problems, unplug the garage door opener and check the wire connections between the logic board and the travel module. Reconnect any loose wires and repair any broken wires. If the door only moves 6 to 8 inches and stops, replace the travel module. Replace the logic board if it doesn't send current to the motor when you activate the opener.
Possible Parts Required
Garage door components, garage door opener rail, trolley, travel module, logic board
Error Code
2 Up flashes, 1 Down flash
Condition
Defective logic board
Check / Repair
Unplug the garage door opener for 1 minute and then plug it back in to restore power. If the code resumes after restoring power, unplug the garage door opener and replace the logic board.
Possible Parts Required
Logic board
Error Code
2 Up flashes, 2 Down flashes
Condition
Defective logic board
Check / Repair
Unplug the garage door opener for 1 minute and then plug it back in to restore power. If the code resumes after restoring power, unplug the garage door opener and replace the logic board.
Possible Parts Required
Logic board
Error Code
2 Up flashes, 3 Down flashes
Condition
Defective logic board
Check / Repair
Unplug the garage door opener for 1 minute and then plug it back in to restore power. If the code resumes after restoring power, unplug the garage door opener and replace the logic board.
Possible Parts Required
Logic board
Error Code
2 Up flashes, 4 Down flashes
Condition
Defective logic board
Check / Repair
Unplug the garage door opener for 1 minute and then plug it back in to restore power. If the code resumes after restoring power, unplug the garage door opener and replace the logic board.
Possible Parts Required
Logic board
Error Code
2 Up flashes, 5 Down flashes
Condition
Defective logic board
Check / Repair
Unplug the garage door opener for 1 minute and then plug it back in to restore power. If the code resumes after restoring power, unplug the garage door opener and replace the logic board.
Possible Parts Required
Logic board
Error Code
3 Up flashes, 2 Down flashes
Condition
Can't detect door travel
Check / Repair
Unplug the garage door opener and check the wire connections between the logic board and the travel module. Reconnect any loose wires and repair any broken wires. If wiring connections are okay, replace the travel module.
Possible Parts Required
Travel module
Error Code
4 Up flashes, 1 Down flash
Condition
Garage door binding or travel limits not set properly
Check / Repair
Check for bent door tracks or obstructions in the tracks. Pull the emergency door release to disconnect the garage door from the opener trolley. Open and close the door manually, checking for smooth door operation. Have a garage door repair technician fix the door and tracks if the door gets stuck on the tracks. If the door is okay, program the up travel limit to stop the opener once the door fully opens. Program the down travel limit to stop the door when it touches the floor.
Possible Parts Required
Garage door components
Error Code
4 Up flashes, 2 Down flashes
Condition
Garage door binding or travel limits not set properly
Check / Repair
Check for bent door tracks or obstructions in the tracks. Pull the emergency door release to disconnect the garage door from the opener trolley. Open and close the door manually, checking for smooth door operation. Have a garage door repair technician fix the door and tracks if the door gets stuck on the tracks. If the door is okay, program the up travel limit to stop the opener once the door fully opens. Program the down travel limit to stop the door when it touches the floor.
Possible Parts Required
Garage door components
Error Code
4 Up flashes, 3 Down flashes
Condition
Garage door binding or travel limits not set properly
Check / Repair
Check for bent door tracks or obstructions in the tracks. Pull the emergency door release to disconnect the garage door from the opener trolley. Open and close the door manually, checking for smooth door operation. Have a garage door repair technician fix the door and tracks if the door gets stuck on the tracks. If the door is okay, program the up travel limit to stop the opener once the door fully opens. Program the down travel limit to stop the door when it touches the floor.
Possible Parts Required
Garage door components
Error Code
4 Up flashes, 4 Down flashes
Condition
Garage door binding or travel limits not set properly
Check / Repair
Check for bent door tracks or obstructions in the tracks. Pull the emergency door release to disconnect the garage door from the opener trolley. Open and close the door manually, checking for smooth door operation. Have a garage door repair technician fix the door and tracks if the door gets stuck on the tracks. If the door is okay, program the up travel limit to stop the opener once the door fully opens. Program the down travel limit to stop the door when it touches the floor.
Possible Parts Required
Garage door components
Error Code
4 Up flashes, 5 Down flashes
Condition
Communication error between the travel module and logic board
Check / Repair
Unplug the garage door opener and check the wiring connections between the logic board and the travel module. Reconnect any loose wires or replace the wires if broken. If the wires are okay, replace the travel module.
Possible Parts Required
Travel module, wire
Error Code
4 Up flashes, 6 Down flashes
Condition
Safety sensors temporarily obstructed or misaligned
Check / Repair
Check safety sensor alignment and adjust if necessary. Check for excessive garage door rail vibration. Tighten the rails if loose. Sunlight can interfere with the infrared safety sensor beam. Install sun shields over the safety sensors if you suspect sunlight interference.
Possible Parts Required
Sun shield
Most common symptoms to help you fix your garage door openers
Choose a symptom to see related garage door opener repairs.
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 …
Things to do: check garage door travel, tighten brackets and fasteners, test safety sensors, check travel limits and for…
Main causes: neighbor's remote programmed at the same time as yours, faulty wall control wiring, bad wall control unit…
Main causes: faulty logic control board, bad RPM sensor, broken gears in the drive system, bad drive motor…
Main causes: safety sensor beams blocked, safety sensors not aligned, downforce setting needs adjustment, damaged garage…
Main causes: radio interference, weak remote batteries, sunlight interference with safety sensor beams, safety sensors n…
Main causes: garage door opener misaligned, travel limits need adjustment, bad travel limit switches, faulty logic contr…
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 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 time and Difficulty
15 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 p…
Repair time and Difficulty
60 minutes or less
How to replace a garage door opener drive belt
A damaged or broken belt on your garage door opener could be the reason it won’t move the door. Here’s how to fix it.…
Repair time and Difficulty
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.
This inexpensive gadget prevents sunlight interference with the sensors.…
If your remotes don't work, you might need to disable the lock feature, eliminate RF interference or check the batteries…
You can repair your garage door opener yourself. We show you how.…