What to Do When Your Garage Door Won't Open

It's 7:30 AM, you're already running late, and the garage door isn't moving. Before you panic or start pulling things apart, work through this list in order. Most of the common causes are simple and take less than five minutes to check.

Check These First - In Order

Check the Power

It sounds obvious but it's the most common cause. Check that the opener is plugged in and that the outlet has power - plug a lamp into the same outlet to test it. If a breaker tripped overnight, the outlet is dead and the opener won't respond at all.

Fix: Reset the breaker or plug the opener into a working outlet.

Try the Wall Button

If your remote isn't working, try the wall-mounted button inside the garage. If the wall button works but the remote doesn't, the problem is the remote - not the door or opener. Remote issues are almost always a dead battery or a remote that needs to be reprogrammed.

Fix: Replace the remote battery first. If that doesn't work, reprogram the remote to the opener following the instructions in your opener manual.

Check the Lock Mode

Most openers have a lock or vacation mode that disables all remotes while allowing the wall button to work. If someone accidentally held the lock button on the wall panel, the remote will do nothing. The wall button will still work but remotes won't respond.

Fix: Press and hold the lock button on your wall panel for a few seconds to toggle it off. Check your opener's manual for the exact button - it often looks like a padlock icon.

Look at the Safety Sensors

The sensors sit a few inches off the floor on each side of the door frame. Both should have a steady light. If one is blinking, off, or a different color than usual, something is blocking the beam or knocking a sensor out of alignment. The opener won't run if the sensors aren't aligned and clear.

Fix: Remove any objects near the sensors, wipe the lens clean, and gently re-aim the sensor until both lights go solid. Check that the sensor wiring hasn't been pulled loose.

Check if the Door Is Manually Locked

Many garage doors have a manual slide lock or T-handle lock in the center of the door. If it's engaged, the opener motor will run but the door won't move - and the strain can damage the opener. Look for a horizontal bar across the door that needs to slide to the side before the door can open.

Fix: Disengage the manual lock completely before attempting to use the opener again.

Check the Disconnect Cord

There's a red cord hanging from the opener rail - this is the emergency disconnect. If someone pulled it, the door is disconnected from the opener and won't respond to any button. The door can still be lifted manually but the opener won't engage until it's reconnected.

Fix: Pull the cord toward the door to re-engage the trolley carriage. You should hear or feel it click back into place. Then test the opener.

If None of Those Worked

If you've worked through all six checks and the door still won't open, the problem is mechanical - a broken spring, a snapped cable, a roller off the track, or a failed opener motor. These are not DIY repairs.

Do not force the door open manually if the spring is broken. Without spring tension, a full-size garage door can weigh 150 to 400 pounds. Lifting it without the spring to counterbalance is a serious injury risk. If the door feels unusually heavy when you try to lift it by hand, stop and call us.

How to Get Your Car Out Right Now

If your car is trapped and you need to get out immediately, here's how to open the door manually without power:

Pull the red emergency disconnect cord to release the door from the opener
Lift the door by hand from the bottom using both hands - lift straight up
If the door feels extremely heavy, stop - this likely means a broken spring
Once open, prop it with a piece of wood or ask someone to hold it while you back out
Do not leave the door unattended in the open position if the spring is broken

Security note: If your door won't close and you can't secure it, call us right away. We offer same-day emergency service across the Denver metro and Front Range - leaving a garage open overnight is a real security risk.

Still Stuck? We Can Be There Today.

24/7 emergency service across Denver metro and the Front Range. Most repairs done on the first visit.

Call (720) 978-3104