Garage Door Won’t Open? Common Causes and What to Do Next

Garage door inspection and fault finding showing a technician checking the springs, sensors, and opener for common reasons why the door won't open
A technician inspecting a garage door – identifying the most common causes of a door that won’t open

There’s nothing more frustrating than pressing your garage door remote and getting absolutely nothing. You press it again. Still nothing. You try the button in your car. Nothing. The door won’t budge, and you’re left wondering why your garage door won’t open.

The good news is that most garage door problems are simple to fix. In many cases, the solution is something you can do yourself in a matter of minutes. However, bare in mind some problems are more complex and have potential for danger these would require professional attention.

This guide covers the most common reasons your garage door won’t open, starting with the simplest fixes and progressing to more serious issues. We’ll help you diagnose the problem and guide you on what to do next.

If you’re feeling unsure about any part of the process, our complete guide to garage doors covers everything step by step.


First Steps: Quick Checks

Before you start worrying about broken springs or expensive repairs, check these simple things first.

Check the Remote Battery

The most common cause of a garage door not working is usually the remote battery. If your remote has suddenly stopped working, the battery is almost certainly the culprit.

What to do:

  1. Open the remote control casing
  2. Check the battery type and replace it with a new one of the same type
  3. Test the remote

Most remote batteries last 1-2 years, depending on usage. If the remote is old or hasn’t been replaced in a while, it’s a good place to start. If this didn’t work but you think it could still be the remote, here are 5 fixes you can try to solve this remote issue.

Replacing a garage door remote battery, showing the remote casing open with the old battery being removed and a new battery ready for installation
Replacing a garage door remote battery – a quick, simple fix for a non-responsive remote

Check the Wall Button

If the remote isn’t working, try the wall button inside the garage.  If the wall button opens the door while the remote does not, the issue can be isolated to the remote control rather than the door mechanism. In contrast, when neither the wall button nor the remote is able to operate the door, the problem is more likely to be associated with the door’s physical components or the opener’s electrical system.

Check the Power Supply

Is the garage door opener plugged in? Has the circuit breaker tripped? Although it may sound obvious, the simplest solution is often found to be the correct one.

What to do:

  1. Check that the opener is plugged in
  2. Check the circuit breaker
  3. Check for any visible damage to the power cord

Check the Lock

It’s also worth noting that certain garage door models are fitted with a manual lock, which can be operated from inside the garage. If the lock is engaged, the opener won’t work. Check that the lock is disengaged.


Fix 1: Safety Sensors

If the door tries to close but then reverses, or if it won’t close at all, the safety sensors are the most likely cause.

What to Look For

  • The door starts to close but immediately reverses
  • The lights on the sensors are off or flashing
  • The sensors are dirty or misaligned
Garage door photoelectric safety sensor mounted on the door track near the floor
A photoelectric safety sensor on a garage door – projects an infrared beam to detect obstructions

How to Fix It

Clean the sensors: Wipe the lenses with a soft, dry cloth. Dust and cobwebs can block the infrared beam.

Check the alignment: Both sensors should be pointing directly at each other. If they’re misaligned, the door won’t close.

Check for obstructions: Make sure nothing is blocking the beam.

What If Your Garage Door Won’t Still?

Despite being cleaned, aligned, and cleared of any obstructions, the sensors may still fail to operate correctly. Should this occur, the problem is generally attributable to faulty wiring or an internal issue with the sensors. Consequently, a professional should be contacted without delay.


Fix 2: Remote and Programming Issues

If the remote battery isn’t the problem, the remote may have lost its programming.

How to Reprogram a Garage Door Remote

Step 1: Locate the “Learn” button on your garage door opener. Generally you can find the button on the back or side of the housing unit of the motor.

Step 2: Press and release the “Learn” button. The indicator light should start flashing.

Step 3: Press and hold the button on your remote. The light on the opener should flash or turn solid.

Step 4: Test the remote.

If the remote still doesn’t work, try replacing the battery again or checking the manufacturer’s instructions for your specific model.

Interference Issues

Sometimes the problem isn’t the remote—it’s the environment. Interference from Wi-Fi routers, baby monitors, or other devices can block the signal from your remote.

How to check:

  • Move closer to the garage door
  • Try unplugging potential sources of interference
  • If the remote only works when its right next to the unit, it’s likely there is interference when you’re further away

Fix 3: Opener Issues

Should the remote and sensors be functioning correctly while the door refuses to open, the opener itself may be the source of the problem.

The Opener Is Humming but the Door Isn’t Moving

This is a sign of a mechanical problem. An attempt is being made by the opener to lift the door; however, this effort is being blocked by some form of obstruction. This could be:

  • A broken spring: The spring has snapped and the opener can’t overcome the weight of the door.
  • Worn gears: The gears in the opener are stripped, so the motor turns but the chain or belt doesn’t.
  • A seized roller: A roller has locked up, preventing the door from moving.

The Opener Is Completely Dead

If the opener isn’t making any noise at all, the problem is likely electrical.

  • Check the power supply: Is the opener plugged in? Has the circuit breaker tripped?
  • Check the fuse: Some openers have a fuse that can blow.
  • Check the safety sensors: Faulty or damaged sensors can result in the opener not working as intended.
Broken garage door motor making an unusual sound, with a homeowner listening closely to the unit to identify the problem
A garage door motor making unusual sounds – a sign that professional attention is needed

Fix 4: Broken Springs

A broken spring is one of the most common and serious garage door problems. If the door won’t open at all, or if it opens only a few inches and then stops, a broken spring is a likely cause.

Signs of a Broken Spring

  • A loud bang (the sound of the spring snapping)
  • A visible gap in the torsion spring
  • The door opens at an angle
  • The door won’t open at all
Garage door spring snapped clean in half, showing a visible break with the two pieces separated on a residential garage door system
A torsion spring snapped clean in half – a clear sign that professional replacement is urgently needed

What to Do

If you suspect a broken spring, do not attempt to open the door. You could create a dangerous situation if the door isn’t safe to use and also potentially damage your garage door further.

What to do:

  1. Stop using the door immediately
  2. Call a professional garage door installer
  3. For safety reasons, DIY repairs are strongly discouraged, since the springs are under extreme tension and could cause serious injury.

Common Causes

  • Wear and tear over time (springs typically last 10-15 years)
  • Rust or corrosion
  • Incorrect spring tension
  • Poor maintenance (lack of lubrication)

Fix 5: Off-Track Door

If the door has come off its tracks, it won’t open or close properly. You may notice the door is uneven, or you can see that the rollers have come out of the tracks.

Signs of an Off-Track Door

  • The door is visibly uneven
  • The door is stuck at an angle
  • You can see that the rollers have come out of the tracks
  • The door makes a loud scraping noise when you try to open it
Garage door misaligned off tracks showing a roller that has come out of the guide rail with the door hanging at an angle
A garage door off its tracks – a dangerous problem that requires immediate professional attention

What to Do

Do not try to force the door open or closed. A door that has come off its tracks is unstable and can fall suddenly.

What to do:

  1. Stop using the door immediately
  2. Secure the area—keep children and pets away from the door
  3. Call a professional installer to realign the door safely

Common Causes

  • Impact from a car or heavy object
  • Worn or damaged rollers
  • Loose hardware
  • Broken cables or springs

Fix 6: Broken Cables

The cables work alongside the springs to lift the door. If a cable snaps, the door can become unbalanced and won’t open properly.

Signs of a Broken Cable

  • The door opens at an angle
  • The door is difficult to lift manually
  • You can see a broken or frayed cable
Obvious sign your garage door cable has despooled, showing the cable unwound from the drum and hanging loosely off the mechanism
A despooled garage door cable – a clear sign that the door needs professional attention

What to Do

Do not attempt to replace the cable yourself. Cables are under tension and can cause serious injury.

What to do:

  1. Stop using the door
  2. Call a professional

Common Causes

  • Wear and tear over time
  • Rust or corrosion
  • Fraying
  • Incorrect tension

Troubleshooting Summary

Use this quick reference guide to diagnose the problem:

SymptomLikely CauseAction
Remote doesn’t workBattery or programmingReplace battery or reprogram
Door reverses when closingDirty or misaligned sensorsClean and align sensors
Opener hums but door won’t moveBroken spring or worn gearsCall a professional
Door won’t open at allBroken spring, off-track, or broken cableCall a professional
Door opens at an angleBroken spring or cableCall a professional
Opener is deadPower issueCheck power supply
Wall button works but remote doesn’tRemote issueReplace battery or reprogram

For reliable, straightforward advice on choosing, installing, and maintaining a garage door, see our complete guide to garage doors.


Cost Guide for Common Repairs

Repair TypeTypical Cost
Sensor cleaning and realignment£50 – £100
Remote reprogramming£50 – £100
Spring replacement£140 – £380
Cable replacement£100 – £300
Roller replacement£80 – £200
Track realignment£70 – £150
Opener repair£150 – £500

FAQ: Garage Door Won’t Open

Q: Can I force the door open if it won’t move?
A: No. Forcing the door can cause further damage and increase the risk of injury. If the door won’t open, there’s a reason—and forcing it won’t help.

Q: Is it safe to use the manual release?
A: Yes, the manual release is safe to use, but be careful. The door is heavy, and if the springs are broken, it can be dangerous to open or close manually. Always use caution.

Q: How long do garage door springs last?
A: Springs typically last 10-15 years or 10,000-15,000 cycles (one cycle is one open and close). However, this depends on usage and the quality of the springs.

Q: Can I prevent my garage door from breaking down?
A: Regular maintenance—lubricating moving parts, checking the hardware, and having the door serviced annually—can prevent most problems.

Q: When should I call a professional?
A: If you’ve worked through the simple fixes (battery, sensors, programming) and the door still won’t open, it’s time to call a professional. This is especially important if you suspect a broken spring, off-track door, or broken cable.


Final Thoughts

A garage door that won’t open is frustrating, but in many cases, the fix is simple. Start with the basics—check the battery, clean the sensors, and try reprogramming the remote. If those don’t work, the problem is likely more serious and requires professional attention.

If you suspect a broken spring, off-track door, or broken cable, do not attempt to fix it yourself. These components are under extreme tension and can cause serious injury. Call a professional—they have the tools, experience, and knowledge to fix the problem safely.

From choosing the right door to keeping it safe and well-maintained, our complete guide to garage doors covers everything you need to know.

Newsletter Updates

Enter your email address below and subscribe to our newsletter