Garage Door Won't Close — 7 Quick Fixes
📋 Table of Contents
A garage door that won't close is a security and convenience emergency. Most problems can be fixed in under 30 minutes without any professional help. Here are the most common causes and fixes.
Fix 1: Check the Safety Sensors
Almost all garage door openers have sensors at the bottom of the door track (about 6 inches off the floor). If misaligned or blocked, they prevent closing. Look for the indicator lights on each sensor — they should both be solid (not blinking). Adjust the sensor brackets until both lights are solid.
Fix 2: Clean the Sensor Eyes
Dirt, cobwebs, or sun glare on the sensor lenses will trigger a false obstruction warning. Wipe both sensor lenses with a clean dry cloth. Also check for direct sunlight hitting a sensor.
Fix 3: Check the Track for Obstructions
Walk the length of both tracks and remove any debris, tools, or objects blocking the path. Even a small pebble can prevent smooth operation.
Fix 4: Lubricate the Tracks and Rollers
Dry, squeaky tracks and rollers create resistance that the motor may interpret as an obstruction. Apply white lithium grease or garage door lubricant to the tracks, rollers, and hinges.
Fix 5: Adjust the Close Limit Settings
The 'close limit' setting tells the motor how far down to travel. If set too low, the door hits the ground and reverses. Find the limit adjustment screws on the motor unit (labeled 'Down Limit') and turn them slightly.
Fix 6: Check the Remote Battery
If the wall button closes the door but the remote doesn't, it's just a dead battery. Replace the battery in the remote.
Fix 7: Reset the Garage Door Opener
Unplug the motor unit for 30 seconds, plug back in. Hold the learn button on the motor unit until the light blinks, then reprogram your remotes.
Conclusion
Garage door closing failures are almost always caused by misaligned sensors. Take 2 minutes to check them first — adjust both sensors until their indicator lights are both solid, and the door will likely close immediately.