First, look before you pull anything. If you heard a bang, a spring has a gap, a cable is hanging, or the door is crooked, leave the door where it is, keep everyone out from under it, and request help. Don't pull the red emergency release on an open door until you've ruled those out.
A door stuck all the way open is a different problem from one stuck halfway or one that won't close all the way. The door is up, the house is exposed, and you want it down tonight. Here's how to work out whether that's a quick fix or a job for a technician.
Step 1: Rule out the dangerous causes (from a safe distance)
Stand outside the door's path and look up.
| What you see or heard | What it often means | What to do |
|---|---|---|
| A loud bang earlier, or a gap in the spring above the door | Broken torsion spring | Stop. Don't release the opener. Request help. |
| A spring along the side track is stretched or hanging | Broken extension spring | Stop. Request help. |
| A cable is slack, frayed, or off its drum | Cable failure, often tied to a spring | Stop. See cable snapped. |
| The door sits crooked in the opening, or a roller is out of the track | Door off track | Stop. See off-track repair. |
| Opener hums or runs, chain or belt moves, door doesn't | Opener drive problem or a disconnected trolley | Unplug the opener and check the springs before anything else. |
If any of the first four apply, the door isn't balanced. The U.S. Consumer Product Safety Commission (CPSC) says a properly balanced door stays in place when stopped partway open, and that a severely unbalanced door could crash to the floor. Leave it up, secure the house (Step 4), and request help.
Step 2: Check the simple causes
If the springs and cables look intact and the door is level, work through these:
- Sensors. Look at the two small units near the floor on each side of the door. If a light is off or blinking, something is blocking the beam or knocking them out of line. Clear the path, wipe both lenses, and realign until both lights are steady. Full guide: sensor light blinking.
- Opener lights flashing. Chamberlain's support pages say LiftMaster and Chamberlain openers flash their lights 10 times when there's a sensor problem. That points you back to the sensors.
- Wall button vs. remote. If the wall button closes the door but the remote doesn't, try a fresh remote battery. Cold drains them faster.
- Power. Check that the opener is plugged in and that the breaker or GFCI outlet hasn't tripped.
- Ice or debris at the floor. A ridge of ice or a rock where the door lands can make the opener reverse. In winter, see door won't close in cold weather and door reverses in cold weather.
Step 3: Closing the door by hand (only when it's safe)
If the springs and cables are intact, the door is level, and the opener still won't close it, you may be able to close it manually:
- Unplug the opener so nobody triggers it.
- Stand clear of the door's path, with a second adult if you can.
- Pull the red emergency release cord. If the door starts to drift down on its own or feels very heavy when you hold it, the springs aren't doing their job. Step back out of its path and request help.
- Lower the door by the handle, not by the panel joints, where fingers can get pinched.
- Lock it with the manual lock, if the door has one. Leave the opener disconnected until a technician checks it.
CPSC's own manual check is done with the door closed, which is the safest position to release the opener. That's why we say to rule out spring and cable problems first when the door is open.
Step 4: Secure the garage overnight
If the door has to stay open:
- Lock the door between the garage and the house. Treat it as your front door tonight.
- Move valuables, bikes, and tools out of sight, and turn on outside lights.
- Keep everyone, including pets, out from under the door. Block the opening with something visible.
- On a cold night, keep the house door shut and protect anything in the garage that can freeze.
- Request help and choose "ASAP." Say the door is stuck open, and whether a spring or cable looks broken.
Stop and call
Request help when:
- A spring or cable looks broken, or you heard a bang
- The door is crooked or off track
- The opener runs but the door doesn't move
- The sensors are clean and aligned and the door still won't close
- You can't close it safely and the garage is open overnight
Emergency and winter help · Broken spring repair · Opener repair
When the company calls, tell them the door is stuck open, what you saw in Step 1, and whether you were able to close it. Ask for a written price before work starts. Published price ranges, including after-hours costs, are in our emergency repair cost guide and Minneapolis repair cost guide.
Getting help in the Twin Cities
Twin Cities Garage Door SOS is a free referral service for homeowners. We're not a repair contractor. When you send a request, we pass it to one independent local garage door company that serves your ZIP code, and that company contacts you with its availability and price. Pricing, scheduling, and the repair itself are between you and the company. Here's how it works.
Sources
- U.S. Consumer Product Safety Commission, Publication 523: Non-Reversing Automatic Garage Door Openers Are a Hazard
- Chamberlain Group support, "Garage Door Opener Light Blinks but the Door Won't Close"
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Frequently asked questions
Can I close a stuck-open garage door by hand?
Only if you're confident the springs and cables are intact. With good springs, a door that's disconnected from the opener should feel fairly light and stay roughly where you leave it. If you heard a bang, see a gap in a spring, a cable is slack, or the door is crooked, don't pull the emergency release. The opener may be what's holding the door up.
Why won't my garage door come down when I press the button?
The most common causes are blocked, dirty, or misaligned safety sensors, a remote or keypad problem, a power or breaker issue, or an opener that runs without moving the door. A broken spring or cable, or a door off its track, can also leave it stuck open, and those need a technician.
My opener lights flash and the door won't close. What does that mean?
On LiftMaster and Chamberlain openers, Chamberlain's support pages say the main lights flash 10 times when there's a safety sensor problem. Start with the sensor lights; see garage door sensor blinking.
Is a garage door stuck open an emergency?
It often is. An open garage leaves an attached house less secure and, on a subzero night, lets the cold reach the house wall and anything in the garage that can freeze. If you can't close it safely, choose "ASAP" when you send a request.