Search guides

Fix an automatic garage door that will not close

We'll confirm the symptom, rule out obstructions and safety sensors (photo eyes), then isolate the cause—limit switch, motor, or wiring—or tell you when to call a pro.

Troubleshooting · Home appliances
15–30 min
What you'll need
  • Soft, dry cloth (for photo eye lenses)
  • Owner manual (for limit switch and alignment)
  • Fresh remote batteries (if applicable)
Step 1 of 7

Quick triage — pick your path

Get started

Choose the option that matches what you see. You can jump straight to that section.

Show full guide

Steps

Goal: Confirm the symptom, rule out obstructions and safety sensors, then isolate the cause—limit switch, motor, or wiring.

  • Operate the door with the remote or wall button. The door should open fully, then close when commanded.
  • Good: The door opens but will not close (stops, reverses, or does nothing)—proceed to Check obstructions and photo eyes.
  • Bad: The door does not open at all—check power and remote first.

Check obstructions and photo eyes

Goal: Rule out the most common causes—obstructions and a broken photo eye beam.

  • Walk the full path of the door. Clear any boxes, tools, trash cans, cords, or debris in the way.
  • Wipe the photo eyes lenses with a soft, dry cloth. Check that both units are powered and aligned so the beam crosses the path. Realign per your owner manual if the beam is broken.
  • Good: Path clear, lenses clean, beam aligned. Test the door—it should close when commanded.
  • Bad: Still will not close—proceed to Power and remote.

Check power and remote

Goal: Rule out power loss and a dead remote.

  • Confirm the opener has power—check the circuit breaker and that the unit is plugged in or wired correctly. Reset the breaker if tripped.
  • Replace remote batteries if weak. Try the wall button if the remote fails.
  • Good: Power on, at least one control works. If the door opens but will not close, return to obstructions and photo eyes.
  • Bad: No response—power or control fault; call a pro if power is confirmed.

Limit switch and motor

Goal: Determine if the limit switch or motor is at fault.

  • Check the limit switch per your owner manual. A misadjusted limit switch can prevent the door from closing. Do not adjust if unsure—incorrect adjustment can cause overtravel.
  • Command the door to close. Listen for the motor. If the motor runs but the door does not move, the gear or linkage is broken—call a pro. If the motor does not run, the motor or control board may have failed—call a pro.
  • Good: You found and fixed the cause. The door closes when commanded.
  • Bad: Motor runs but door does not move, or motor does not run—call a garage door technician.

When to get help

Call a garage door technician if:

  • The motor runs but the door does not move (internal gear or linkage failure).
  • Wiring is damaged or exposed.
  • The limit switch or motor needs replacement.
  • You are not comfortable with the repair.

Never work on torsion springs yourself—they are under high tension and can cause serious injury. Do not bypass safety sensors or force the door.

Verification

  • The door closes fully when commanded from the remote or wall button.
  • No grinding, clicking, or stuck movement.
  • Photo eyes are clean and aligned; the beam is intact.
  • The door does not reverse unexpectedly when the path is clear.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Confirm symptom Verify the door opens but will not close when commanded.
  2. Obstructions and photo eyes Clear the path and clean, realign the photo eyes.
  3. Power and remote Confirm power and replace remote batteries; try the wall button.
  4. Limit switch and motor Check limit switch adjustment; test if the motor runs.
  5. Call a pro Motor runs but door does not move, wiring damaged, or not comfortable—call a garage door technician.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • Door type (sectional, roll-up, or one-piece)
  • Whether photo eyes are aligned and clean
  • Whether the motor runs when commanded
  • Steps already tried

Does the door open but will not close when commanded?

Operate the door with the remote or wall button. If it opens but stops, reverses, or does not close, the safety system or motor is at fault.

Operate the door with the remote or wall button. Good: door opens but will not close (stops, reverses, or does nothing)—proceed to obstructions and sensors. Bad: door does not open at all—different problem (power, remote, or open path); check power and remote first.

Yes No

You can change your answer later.

Is the path clear and are the photo eyes clean and aligned?

Obstructions or a broken photo eye beam are the most common causes. The door will not close if it thinks something is in the path.

Walk the path and clear any obstructions. Wipe the photo eyes lenses with a soft, dry cloth. Realign the sending and receiving units so the beam crosses the path. Good: path clear, lenses clean, beam aligned—test the door. Bad: still will not close—proceed to power and remote.

Yes No

You can change your answer later.

Does the door close after cleaning and aligning?

Command the door to close. If it closes, the fix is complete. If not, proceed to power and remote.

Done

Is power on and does the remote or wall button work?

Power loss or a dead remote can prevent the door from responding.

Check the circuit breaker and that the opener has power. Replace remote batteries. Try the wall button. Good: power on, at least one control works—if door opens but will not close, return to obstructions and photo eyes. Bad: no response—power or control fault; call a pro if power is confirmed.

Yes No

You can change your answer later.

Does the motor run when commanded to close?

Use manual release or test mode if available. Listen for the motor.

Command the door to close. Listen for the motor. Motor runs but door does not move: gear or linkage failure—call a pro. Motor does not run: check limit switch per manual, or motor/control board may have failed—call a pro. Do not bypass safety sensors or force the door.

Yes No

You can change your answer later.

Motor runs but door does not move

Internal gear or linkage failure. Call a garage door technician. Do not attempt to repair the opener unless you are experienced. Never work on torsion springs yourself.

Done

Call a pro

Call a garage door technician if the motor runs but the door does not move, if wiring is damaged or exposed, if the limit switch or motor needs replacement, or if you are not comfortable with the repair. Never work on torsion springs yourself—they can cause serious injury.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would an automatic garage door not close?
The most common cause is the photo eyes (safety sensors)—dirt, misalignment, or a broken beam makes the door think something is in the path, so it refuses to close or reverses. Obstructions, limit switch, or motor can also cause it.
Can I fix an automatic garage door that will not close myself?
Yes. Cleaning and realigning photo eyes, clearing obstructions, and checking the remote and power are DIY. Limit switch adjustment, motor replacement, and spring work require a garage door technician—springs are under high tension and can cause serious injury.
When should I call a technician for a garage door that will not close?
Call a garage door technician if the motor runs but the door does not move, if wiring is damaged or exposed, if the limit switch or motor needs replacement, or if you are not comfortable with the repair. Never work on torsion springs yourself—they can cause serious injury.

Rate this guide

Was this helpful?

Continue to