Home Maintenance
Why Is My Garage Door Not Closing? 8 Things to Check
A garage door that will not close can fail because of the safety sensors, controls, manual lock, visible obstruction, or a mechanical problem. The door's exact behavior is a useful diagnostic clue.
1. Watch what happens when you press Close
Does nothing happen, does the door start down and reverse, or is the door crooked or unusually heavy? That first behavior helps narrow the problem before you touch anything.
2. Check the photo-eye safety sensors
Look near the bottom of the opening for the two sensors. Remove obvious obstructions, gently clean the lenses, and make sure nothing has knocked them out of alignment. Do not bypass the safety system.
3. Test the wall control
If the remote does not close the door, try the wall control. A working wall control can help distinguish a remote problem from an opener or door problem.
4. Check the remote and power
Replace the remote battery if needed. If the opener has no response at all, check for obvious power issues without opening electrical covers.
5. Check the manual lock
If the door has a manual lock, confirm it is not engaged. A lock can prevent normal powered movement.
6. Look for a simple obstruction or track problem
Inspect the opening and tracks from a safe position for obvious objects, impact damage, or anything visibly preventing travel. Do not bend tracks or remove mounting hardware.
7. Use the door's movement as a warning sign
A door that reverses can point toward the safety system or an obstruction. A crooked, very heavy, rapidly falling, or uneven door can indicate a mechanical or balance problem and should not be forced.
8. Know when the opener is not the part to repair
Springs, cables, drums, major track damage, and door balance require specialized service. Trying to make a heavy door close by bypassing a safety device can create a serious injury hazard.
When to call a garage-door professional
Stop testing and get qualified help if the door is crooked, falls quickly, has damaged springs or cables, makes a severe mechanical sound, or requires adjustment of high-tension components.
Quick checklist
- Observe the door's exact closing behavior
- Clear and gently clean the photo-eye area
- Test the wall control
- Check the remote battery
- Confirm the manual lock is not engaged
- Inspect for obvious obstructions
- Do not bypass safety sensors
- Leave springs, cables, and balance repairs to a technician