Craftsman DC motor garage door opener

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.

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.

Examine the wall control wires. Reconnect loose wiring connections. Repair or replace damaged wires. Replace the wall control if defective.

Realign the safety sensors so the LED lights on both sensors turn on. Remove any obstruction between the sensors.

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.

Unplug the garage door opener and replace the logic board.

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.

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.

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.

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.

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.

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.