Garage Door Opener: Opens and closes by itself

When your garage door opens or shuts when you haven't triggered the remote, one possible cause is that a neighbor's remote was programmed at the same time as yours. Erase all codes in your remote and then reprogram it. Here's a video that shows how: How to Program Garage Door Opener Remotes Video. If that doesn't fix the problem, check the wiring between the motor unit and the wall control. Faulty wires can short together and trigger the motor unit to open or close the door. A defective wall control can cause the same problem. Troubleshoot the wall control using the steps in this video: Garage Door Opener Wall Control Troubleshooting Video. Replace the wall unit if it's defective.

These repairs may help solve your Garage Door Opener problem:

Replace the garage door opener wall control

Wall control

A defective wall control won't move the garage door when you press the button. A faulty wall control can open or close the garage door on its own. Replace the wall control if it does't work properly.

For manuals, repair guides, and specific part recommendations, enter your model number.

Program the vehicle's garage door opener remote

Remote

Special programming is sometimes needed to link a vehicle's built-in remote control to the garage door opener. First follow the steps in the vehicle's owner's manual for clearing any existing codes and programming, Software updates for the system are occasionally required to correct incompatibility. Contact the manufacturer of the garage door opener for help with resolving this type of problem.

For manuals, repair guides, and specific part recommendations, enter your model number.

Repair or replace external garage door opener wiring

2-strand copper wire

External wiring connects the wall-mounted door control and the safety sensor to the motor unit of the garage door opener. That wiring can become damaged or disconnected. Check that wires are securely attached to the sensor's photoelectric eyes (each eye has 2 wires) and the wall unit. If any wire is cut, strip insulation from the end of the wire and reattach it. Check that wires are still attached to the terminals on the back of the motor unit. Replace or repair any frayed, pinched, or exposed wires.

For manuals, repair guides, and specific part recommendations, enter your model number.