Garage Door Won't Close in Great Neck, NY? Here's Why

Start with how it fails

When a garage door won't close, the cause is most often the safety sensors: something blocking the beam, a dirty lens or a sensor knocked out of line. Watch the door as you press the wall button. What it does tells you where to look:

• Doesn't move at all, opener light blinks: safety sensors
• Starts down, then reverses back up: sensors, force setting or something in the way
• Closes most of the way, then reverses at the bottom: close-limit setting
• Stops partway and stays there: track obstruction, bent track or a worn roller
• Wall button works, remote doesn't: remote battery, programming or lock mode
• Door is crooked or a cable is loose: stop and call

The most likely causes

1. Safety sensors are blocked or out of line. Openers built since the early 1990s have two photo-eye sensors near the floor on either side of the door. If they can't see each other, the opener won't close the door. A recycling bin, a bike, a spider web, dirt on the lens or a sensor knocked sideways by a car or a snow shovel is enough. Direct sun hitting a sensor late in the day can also blind it, which is why some doors only refuse to close at certain times.

2. Limit settings have drifted. The close limit tells the opener where the floor is. If it's set too low, the door hits the ground, thinks it has hit an obstruction and goes back up. Settling concrete, a new bottom seal or seasonal changes can throw this off.

3. Something in the track. Tools, garden hoses, leaves or a bent section of track can stop the rollers. In older detached garages, loose track brackets can let the track shift enough to pinch a roller.

4. Worn rollers or hinges. Rollers that stick or wobble make the door bind on the way down, which trips the opener's force sensor. New rollers often fix a door that stops partway.

5. Remote or wall control issues. A dead remote battery, lost programming, a wall control in lock mode or a damaged wire can all make it seem like the door won't close. Our remote and keypad programming guide walks through reprogramming.

6. A broken spring or cable. Less common with a won't-close problem, but if the door looks uneven or you heard a bang, see spring repair or cable repair.

What you can safely check

• Sensor lights: each sensor has a small LED. Both should be steady. If one is off or flickering, the pair is out of line.
• Clear the beam: move anything near the bottom of the door and wipe both lenses with a soft cloth.
• Re-aim a sensor: loosen its wing nut, gently point it at the other sensor until its light is steady, then retighten.
• Check the wires: look for a staple through the wire or a chewed spot. Squirrels and mice love garage wiring.
• Look along the tracks: clear anything in the path and look for obvious bends.
• Try the wall button: if it works but the remote doesn't, replace the remote battery and check that lock mode is off.

If the sensors are the problem and you need the door closed now, press and hold the wall button until the door reaches the floor. Most openers allow this override. Stay at the button and watch the door the entire time. Some newer openers no longer allow the override; our garage door sensor light guide explains why and how to fix the sensors.

When to call us

Call or book if the sensors still won't line up, the wires look damaged, the door stops partway after you've cleared the track, the track is bent, or the door looks crooked. You should also have a technician adjust the limit and force settings if you're not comfortable doing it. Set wrong, they can stop the auto-reverse from working.

We're a local team based in Great Neck since 1999, not a call center, fixing sensors and openers in Great Neck Plaza, Thomaston, Manhasset and the surrounding villages. Your technician tests the safety-reverse before leaving, and the price is confirmed before we start. If the door is reversing on the way down, our reversing guide goes deeper. If it's stuck open overnight, see emergency repair.