Repair · 5 min read · Updated September 2026

Garage Door Stuck in a Power Outage: Manual Release Steps

If the power's out and the garage door is closed, the opener can't help you. Almost every opener has a red cord that disconnects it so you can lift the door by hand, and it's worth learning to use it before the next storm.

Quick answer: With the door fully closed, pull the red cord on the opener rail down and back toward the door until the trolley releases. Then lift the door by hand. If it feels very heavy, a spring is probably broken, so leave it closed and call for repair.

Find the red cord

Follow the rail from the opener motor toward the door. A red cord with a handle hangs from a small trolley on that rail. The trolley connects the opener to the door, and pulling the cord disconnects it.

Some doors also have a keyed release on the outside for when you're locked out.

Opening the door by hand

Make sure the door is fully closed. A door that's partway up can drop fast once you release it.
Stand to the side, not under the door.
Pull the red cord down and back toward the door. You'll feel the trolley let go.
Lift from the bottom edge or a handle.
Once it's all the way up, clamp locking pliers on the track just below a roller so it can't roll back down.

A door with good springs lifts without much effort and stays put when you let go halfway. If it slides down on its own, a spring is weak or broken.

When to leave it closed

Garage doors are heavy, and the springs carry most of that weight. With a broken spring you'd be lifting the whole thing yourself, and it can come down hard. Leave the cord alone if you can see a gap in a spring or the door hangs crooked. Read what to do about a broken spring or, if the door has jumped its track, what to do when a door comes off track.

Reconnecting when the power comes back

Close the door by hand.
Pull the red cord toward the opener. Some handles have an arrow showing which way.
Press the wall button. The trolley catches as the opener runs and locks back in.
Open and close the door once, then check that it reverses when it touches something on the way down.

If it won't catch, the trolley and carriage may not be lined up. The opener troubleshooting guide covers other causes.

Before the next outage

Try the red cord once while the power is on, so you aren't doing it for the first time in the dark. Keep a flashlight near the door into the garage. If you park inside every day, an opener with a battery backup saves you the trouble, and the smart opener guide has more on those.

Frequently asked questions

How do I open my garage door when the power is out?

Disconnect the opener with the red cord, but only with the door fully closed. If the door is hard to lift afterward, a spring is likely broken.

Is it safe to pull the garage door release cord?

It's safe with the door fully closed and the springs in good shape. If a spring has a gap or the door hangs crooked, leave the cord alone and call for repair.

How do I reconnect my garage door opener after using the manual release?

Close the door, pull the red cord toward the opener, and press the wall button. The trolley catches the carriage as the opener runs and locks back in.

Why is my garage door so heavy when I lift it by hand?

A door with working springs feels light and stays where you leave it halfway up. A heavy door usually has a weak or broken spring, so leave it closed.

Door won't lift?

If it's heavy or a spring looks broken, leave it closed and call us.