Garage Door Not Opening? 10 Causes and What to Do

If your garage door is not opening, check the free fixes first: power to the opener, the lock button on the wall control, remote batteries and whether the red release cord was pulled. If the opener only hums, the door feels very heavy or a spring has a gap, stop. That’s usually a broken spring or cable, and a pro typically charges $150 to $350 for one spring.

Updated September 2026.

This guide works from what you see and hear when you press the button, so you can sort a two-minute fix from a job for a technician.

Safety note: Springs and lift cables hold enough energy to cause serious injury. Never adjust, loosen or replace them yourself, and never try to lift a door with a broken spring. Keep people and pets clear of a door that is stuck partway open. Chamberlain also says to disconnect all electric and battery power before any service on the opener.

Garage door not opening? Quick diagnosis flowchart

Press the wall button once, then match what happens to a row below.

Remote or keypad not working

1. No power to the opener

If nothing lights up or makes a sound, check that the opener is plugged in, then look for a tripped breaker or GFCI outlet. Test the outlet with a lamp. If it’s dead and the breaker won’t reset, call an electrician.

2. Dead remote battery, lost programming or poor range

When the wall button works but the remote doesn’t, the opener is fine. Chamberlain lists the usual suspects:

• Battery: many Chamberlain remotes use a CR2032 3V coin cell. Check polarity and look for corroded contacts.
• Lost programming: holding the Learn button until its LED goes out erases every paired remote. Reprogram using your opener’s manual.
• Range and interference: test the remote at different distances. LED bulbs and other radio sources can cut range.
• Second remote: if one works and another doesn’t, the remote is the problem.

Opener hums but door won’t move

A hum means the opener has power and is trying. How long it hums is a clue, according to Chamberlain’s support guide:

• Brief hum: the springs may be broken, or the door lock is engaged. Check the lock (cause 8); for springs, call a technician.
• Hum lasting about 30 seconds: the door is disconnected from the opener (cause 9).
• Screw drive humming longer than 5 seconds: the rack inside the rail may be stripped.

3. Worn opener gear, drive or motor

If the motor runs but the chain or belt doesn’t move, or you hear grinding, an internal gear or drive part has likely worn out. Chamberlain suggests a test: with the door closed and disconnected, run the opener alone and watch whether the trolley travels along the rail. That separates an opener fault from a door fault. Many openers also blink LED diagnostic codes.

Angi says openers typically last 10 to 15 years with proper maintenance. An older unit with a failed motor is often a replacement rather than a repair.

Broken spring or cable

4. Broken spring

This is the cause to take most seriously, because the springs carry most of the door’s weight. Raynor Door Authority lists the signs:

• A gap of about 2 inches or more in the coil above the door
• A loud bang from the garage, the sound of a spring releasing its tension
• A door that feels heavy, rises unevenly or looks crooked
• An opener that struggles or stops mid-cycle

Don’t keep pressing the button, and don’t lift the door by hand. Springs cost $150 to $350 installed at most companies. Our garage door spring replacement guide explains torsion vs extension springs and why some full-service firms charge $500 to $1,500 for a pair.

5. Broken or slipped cable

Lift cables run from the bottom corners of the door up to drums beside the spring. A snapped or slipped cable lets one side sag, so the door jams or rises crooked. Angi calls cable repair dangerous and not an acceptable DIY project, and puts the typical bill at $100 to $350.

Door off track

6. Rollers out of the track

A crooked door with rollers outside the track can’t open safely. Don’t run the opener, which can drag it further out; unplug it, keep clear and call a pro. Our guide to a garage door that’s come off its track covers the triage checks and typical repair prices.

Lock engaged or manual release pulled

7. Lock (vacation) mode is on

Chamberlain says that in Lock mode the opener ignores remotes. Signs include the opener lights flashing twice or the wall control LED flashing. The fix: press and hold the Lock button on the wall control until the indicator stops flashing or turns solid.

8. The door’s manual lock is engaged

Many doors have an inside slide bolt or T-handle lock. If it’s thrown, the opener hums briefly and stops. Unlock it and try again.

9. The opener is disconnected

If someone pulled the red release cord, the motor runs but the door stays put. On many Chamberlain rail openers, the trolley reconnects on its own during the next full open-and-close cycle. Check your manual, because some models have a lockout position that needs resetting first.

Photo-eye and limit settings

10. Photo-eye sensors, travel limits or force settings

Photo-eyes usually aren’t the reason a door won’t open. Chamberlain’s sensor guidance is about closing: when the safety sensors are blocked or out of line, the door won’t close and the main lights flash 10 times. If your door opens but won’t close, check them:

• Clear anything in the beam and wipe both lenses with a soft cloth.
• Chamberlain says the sensors sit no higher than 6 inches above the floor on each side. Loosen the wing nut, point the lenses at each other, and tighten once the LED glows steadily.
• Watch for low sun shining straight into the receiving sensor, which Chamberlain says can block the beam.

Limits and force: if the door stops or reverses at the same point every time, Chamberlain points to four causes: the door is out of balance, the force settings are off, the opener thinks it hit resistance, or it can’t tell how far the door has traveled. Check balance before touching the settings. Chamberlain notes an opener is designed to move a door that is already balanced and easy to lift, so raising the force to push a heavy door can mask a spring or balance problem.

How to open the door manually

Need the car out now? First check the spring for a gap. Then follow Chamberlain’s steps for a rail opener:

1. Make sure the door is fully closed and the doorway is clear of people, pets and objects.
2. Pull the red release cord straight down. The trolley disconnects from the door.
3. Lift the door slowly by hand, using the handle or bottom edge.
4. If the door feels unusually heavy, won’t stay open or slams shut, stop and call a pro.
5. Never use the release cord itself to raise or lower the door.

On wall-mount openers, Chamberlain says to pull the handle down until it clicks, and to call a technician if the door is hard or noisy to move by hand.

Garage door not opening: repair cost by cause

Where sources disagree: HomeGuide puts a new opener at $300 to $900 installed (average $600); Angi says $218 to $540 (average $379). Both price a basic chain-drive unit at $150 to $250, so the gap likely reflects pricier units in the mix, such as direct-drive ($300 to $500, HomeGuide) or wall-mount ($500 to $750, Angi). HomeGuide’s figure is also a year older.

Worked example (spring quote check): The opener hums briefly and you spot a 2-inch gap in the torsion spring. Quote A replaces one spring for $275, inside HomeGuide’s $150 to $350 range. Quote B says $650 for the spring system. If that covers both springs on a two-spring door, $650 / 2 = $325 per spring, still inside the single-spring range. If it’s one spring, it’s above HomeGuide’s $350 top end (though inside the $350 to $750 some full-service firms charge), so get a second quote. A Saturday-night call adds $100 to $300: $275 + $100 = $375 at the low end.

If a section also got bent, check what a single garage door panel costs to replace before approving a new door.

Common questions

Sources

• Chamberlain: Opener noises and humming
• Chamberlain: Remote does not work
• Chamberlain: Lights flash and door won’t close
• Chamberlain: Door won’t fully open or close
• Chamberlain: How to manually open or close a garage door
• Raynor Door Authority: Signs of spring wear, 2025
• HomeGuide: Garage door repair cost, 2026
• HomeGuide: Garage door opener installation cost, 2025
• Angi: Garage door repair costs, 2026
• Angi: Garage door opener installation cost, 2026
• Angi: Garage door cable repair cost, 2026
• HomeAdvisor: Garage door repair cost, 2026
• Fixr: Garage door repair cost, 2025

More guides in Garage Doors.