Craftsman  Garage Door Opener 

These error code explanations can help you diagnose a problem with your Craftsman 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. You can also search for owner’s manuals and find garage door opener replacement parts.

Craftsman garage door openers with a DC motor flash the up arrow and down arrow to indicate a component failure.

Check out our garage door opener error code charts for information on a different Craftsman model or another brand of garage door opener.

Error Code Condition Check/Repair Shop Parts
1 Up flash, 1 Down flash Safety sensors are not installed, connected or sensor wires are broken 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.
Safety sensor wire, safety sensor kit
1 Up flash, 2 Down flashes Safety sensor wires are shorted or reversed 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.
Safety sensor wire
1 Up flash, 3 Down flashes Wall control defective or wall control wires are broken Examine the wall control wires. Reconnect loose wiring connections. Repair or replace damaged wires. Replace the wall control if defective.
Wall control wire, wall control
1 Up flash, 4 Down flashes Misaligned or obstructed safety sensors Realign the safety sensors so the LED lights on both sensors turn on. Remove any obstruction between the sensors.
1 Up flash, 5 Down flashes Defective logic board or travel module 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.
Travel module, logic board
3 Up flashes, 3 Down flashes Defective logic board Unplug the garage door opener and replace the logic board.
Logic board
4 Up flashes, 1 Down flash Garage door binding on tracks or obstruction when closing 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.
Garage door opener rail, trolley
4 Up flashes, 2 Down flashes Garage door binding while opening 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.
Garage door opener rail, trolley
4 Up flashes, 3 Down flashes Garage door binding or travel limits not set properly 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. 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.
4 Up flashes, 4 Down flashes Garage door binding or hitting an obstruction Remove any obstruction to door travel. 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.
4 Up flashes, 5 Down flashes Communication error between the travel module and logic board 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.
Travel module, wire
4 Up flashes, 6 Down flashes Safety sensors temporarily obstructed or misaligned 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.
Sun shield