SYMPTOM · GARAGE DOOR WON'T CLOSE
IT WON'T CLOSE.
You press the button and the door won't go down, stops a foot short, or heads back up. Most of the time it's one of three things, and the most common one you can check yourself.
WHY IT STAYS OPEN.
The most common cause is the safety sensors. Every opener made since 1993 has photo eyes a few inches off the floor on each side, and if the beam between them is blocked or out of line, the opener won't close the door. On many openers the light on the motor head blinks to tell you so.
The second is alignment. If a track is bent, a bracket is loose, or a roller is binding, the door meets resistance on the way down. The opener reads that as an obstruction and reverses or stops, which is exactly what it's designed to do.
The third is the opener's settings. Openers have a down limit that tells them where the floor is and a force setting that tells them how hard to push. When the limit drifts, the door stops short, or it touches the floor and bounces back up because it thinks it hit something.
Less often, it's the opener itself, such as a failing logic board or a wall button with a bad wire, or a door so far out of balance that the opener can't control it on the way down.
We handle door-won't-close calls across Mocksville, Davie County, and the western Triad. If you've checked the sensors and it still won't close, call (336) 745-8173 and we'll sort out the rest.
CHECK THIS FIRST.
- Wipe both sensor lenses and clear anything off the floor across the opening.
- Look at the sensor lights. Steady means aligned; blinking or dark means bumped or unplugged.
- Look along both tracks for bends, gaps, or loose brackets.
- Watch where it stops. The same spot every time points to a track or limit issue.
- On many openers, holding the wall button down closes the door once despite the sensors. If that works, the sensors are your problem. Watch the door the whole way.
Never disconnect or bypass the safety sensors to make the door close. They exist so the door can't close on a child, a pet, or a car.
WHAT IT'S TELLING YOU.
Goes down, then right back up
Usually the sensors, or a force setting that's too sensitive. Start with why a garage door reverses before closing.
Stops a few inches short
The down limit drifted. It's an adjustment on the opener, but if the door is also heavy or uneven, the springs need a look first. See garage door opener repair.
Won't move down at all
Check the sensor lights and the wall button. If the opener clicks or hums without moving the door, see opener runs but the door won't move.
Closes from the wall button, not the remote
That's a remote or receiver problem, not the door. See garage door remote not working.
Stops halfway in either direction
That's a different pattern, usually a spring or track problem. Read garage door stops halfway.
STRAIGHT ANSWERS.
REVIEWED OCTOBER 2026
Why won't my garage door close all the way?
Most often the safety sensors are blocked, dirty, or out of line. After that, look for a bent track or binding roller, then the opener's down limit and force settings, which can drift over time.
How do I realign garage door sensors?
Loosen the wing nut or bracket on the sensor with the blinking light, nudge it until the light goes steady, then tighten it back down. Keep both sensors at the same height, facing each other.
Can I adjust the limit settings myself?
On many openers, yes, using the dials or buttons on the motor head and the owner's manual. Make small changes and test the safety reverse afterward. If the door is heavy or uneven, have the springs checked before you adjust anything.
My door won't close and it's late. Is that an emergency?
If the door is stuck open and you can't secure the house, call (336) 745-8173 any hour. If the sensors are the cause, wiping and realigning them usually fixes it on the spot.
THE FIX WE DO.
Not quite what your door is doing? Read about reverses before it shuts, stops halfway or remote or keypad quit.