How to Troubleshoot a Garage Door That Won't Open

Automatic garage doors make it easy to get in and out of the garage without getting out of your car. A simple push on the remote for the garage door opener sends a wireless signal to the receiver to open the door. Any number of things can keep a garage door from opening, especially with an automated system. Follow these steps to troubleshoot your garage door and get it operational again.

Garage doors refuse to open for a number of reasons.

Step 1

Check the remote. Most people forget the battery requires changing. The most common reason for the garage door not opening is the battery in the remote is dead. Replace the battery as needed.

Step 2

Look at the garage door tracks and ensure they are clean and free of dirt and debris. Check the rollers and ensure all are in place and functional. Spray lubricant on the tracks if necessary.

Step 3

Inspect the tracks and ensure they are straight and not bent. A roller wheel may be catching in the track or may be off the track altogether. Loosen the screws that secure the track, bend the track back into place and make any needed adjustments. Reinstall the screws and tighten.

Step 4

Verify the receiver is operational and the garage door opener is plugged in. Distance yourself from the garage door and press the remote to see if it opens. Note the distance at which the remote fails to operate. The receiver may be malfunctioning and require replacement if it fails to open the door.

Step 5

Inspect the garage door springs; ensure they are attached and not broken. A broken spring may cause the door to malfunction.

Step 6

Check that the lock button on the garage door opener hasn't been put into "vacation" mode. This will prevent the door from opening.

Step 7

Tug on the manual pull on the garage door. If this is tripped, it will prevent the garage door from opening. When set in manual mode, the door will not open with the remote.

Step 8

Verify the alignment of the sensors on each side of the garage door. If one of them shows a red signal, the beam is out of alignment and requires reconfiguration for proper garage door opening.

Step 9

Adjust the pressure settings on your garage door opener if it is so equipped. These are usually located at the back of the garage door opener.

Step 10

Wait a few minutes before testing the garage door opener again. If the protection mode was tripped, it may take a few minutes for the unit to reset itself.