How to Open a Garage Door Manually in a Power Outage (and Lock It Again)

Question 01

Is it safe to pull the emergency release cord?

Yes, when the door is shut and working normally. The risk is an open door with a weak or broken spring. Pull the cord and the opener lets go, leaving only the springs to hold the door up. Have a quick look first. If anything looks wrong, leave it alone and call.

Chamberlain's advice is to use the release only with the door fully closed, if you can. The Merlin MR800 manual says why. An open door may fall rapidly if its springs are weak or broken.

• Heard a loud bang earlier? That's often a spring letting go. Read what to do when a spring breaks before you touch the cord.
• A gap in a spring, or a loose or frayed cable? Leave it and call.
• Door hanging crooked or off its tracks? Steel-Line says to check the door is working and still in its tracks before you open it by hand.
• Cord frayed or missing its handle? Merlin says it should be neither.
• Doorway clear? Keep kids and pets well back, and move anything that's stored in the way.

Question 02

How do I open a roller door manually?

Find the red cord hanging from the motor at one side of the door. Pull it down firmly until you hear or feel a click. Then lift the door by its handle, slowly, with both hands. Never lift it by the cord. A healthy door should rise without a fight and stay where you leave it.

1. 01Find the cord. The motor sits at one side of a roller door, up near the top, and the red cord hangs from it.
2. 02Pull it down firmly, once. Listen for the click. Some openers want a pull down and across instead. The Merlin MR800 is one.
3. 03Lift from the handle, slowly, with both hands. Merlin warns the cord will snap if you try to pull the door with it.
4. 04Feel how it lifts. Very heavy, or won't stay up? Stop lifting, ease it back down if you can hold it safely, and call.
5. 05Close it the same way, by the handle, with your fingers clear of the edges.

B&D's roller door guide gives the same basic steps. A roller door that's heavy or won't stay up usually has a spring tension problem, explained in heavy roller doors and spring tension. Don't try to adjust it yourself.

Question 03

How do I open a sectional or tilt door manually?

Look for the red cord hanging from the rail that runs along the ceiling to the motor. Pull it down until it clicks. On some openers you pull it toward or away from the door instead. Then lift the door by its handle. It should rise smoothly without much effort.

1. 01Find the cord. The motor sits on the garage ceiling, with a rail running from it to the top of the door. The cord hangs from the rail, close to the door when it's shut.
2. 02Pull it until it clicks. Straight down on most. B&D's FAQ says that on its sectional doors the pull is toward or away from the door, depending on the opener.
3. 03Lift by the handle. A sectional door rolls back along the tracks overhead. A tilt door swings out at the bottom as it rises, so step back as you lift.
4. 04Close it gently, by the handle, and keep your fingers out of the joins between panels.

Heavy, crooked or won't stay open? Stop there. B&D's sectional guide says a door that still isn't working right after these steps may need a professional service.

Question 04

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

You can only do it if an outside release is fitted. That's a small key lock on or near the door that unhooks the opener from outside. It won't lift the door for you, but it lets you open it by hand. With no outside release and no other way in, you'll have to wait for the power.

Chamberlain describes it as a small round key lock, usually near the top panel, that disconnects the opener but doesn't lift the door. B&D makes one for roller doors and one for sectional doors, for garages where the door is the only way in. The MR800 manual goes further. If your garage has no other entry door, it says an outside quick release must be fitted.

• Keep the key outside the garage, on your house keys. The glovebox of the car parked inside is no help.
• Don't pry the bottom of the door up or force the lock. You can bend the door or its tracks and turn a blackout into a repair.

Question 05

How do I get the door back into automatic mode?

Close the door fully by hand first. Then re-engage the opener the way its manual says, usually by pulling the red cord again until it clicks. Some openers only hook back on when they next run. Once the power's back, open and close the door with the remote and watch it the whole way.

Brands differ, so check your own manual before you guess. The make and model are usually on a label on the motor.

Motor hums but the door won't move? It may still be in manual mode. The MR800 manual lists that as the first thing to check, with a broken spring next, so don't keep pressing the button. Re-engage and try once more. If it's still stuck, see garage door won't open or close. Once it's running, check it still reverses when something's in the way. Safety sensors and auto-reverse shows how.

Question 06

How do I lock the garage door manually?

On most automatic doors, the engaged opener is what keeps the door locked. Once you pull the release, the door isn't locked any more. To lock it again, close it and re-engage the opener. If your door also has a key lock or slide bolt, you can use that, but undo it before anyone presses the remote.

B&D's FAQ puts it plainly. Your door won't be locked while the power's out, so to lock it you need to re-engage the opener.

• Leaving home during an outage? Close the door and re-engage the opener before you go.
• Opener only hooks back on when it runs? Then the door stays loose till the power's back. Use a key lock or slide bolt if you have one, and lock the house door into the garage.

Undo any manual lock before the opener runs. The MR800 manual says to disengage garage door locks to avoid damage to the door, and lists a locked door as one reason a motor hums and won't work.

Question 07

Why is the opener beeping after a power cut?

If your opener has a backup battery, the beeps are often the battery telling you it's running without mains power, or that it's getting low. What each pattern means depends on the brand, so check the manual or our guide to opener beeping.

A backup battery lets the opener keep working for a while in a blackout. Merlin says most Merlin openers can take one or come with one fitted. Its blackout guide says its 24V backup battery uses sounds and lights to show when it's in use and when it's low. The MR800 manual says a connected backup should run that opener up to 20 times without power. For what the beeps mean, see why your garage door opener is beeping.

Question 08

Should I practise the manual release before storm season?

Yes. Try it once on a calm day, with the door shut, so nobody's learning by torchlight in a blackout. Check the cord isn't frayed and still has its handle. If you have an outside release, find the key and keep it on your house keys.

1. 01Pull the release with the door shut, lift the door by hand, then close it and re-engage.
2. 02Run the door on the remote and watch it. Jerky or noisy? Get a garage door service booked before the storms start.
3. 03Put a torch in the garage. Energex's storm kit checklist includes a battery torch.

Energex warns that a storm could cut the power for several days. For wind ratings and cyclone prep, see getting your garage door storm ready.

Question 09

When should I stop and call a technician?

Stop if the release won't let go of the door, the door feels far heavier than normal, it won't stay up, it's crooked or off its tracks, or you heard a bang. Several of those point to a broken spring or cable. Leave the door where it is and call for 24/7 emergency help.

Chamberlain says to stop straight away if the door feels unusually heavy, won't stay open or slams shut. The MR800 manual says a door in good balance stays put at any point on its springs alone, and one that doesn't needs a trained technician. Don't keep running the opener against it.

Thom is based in Maroochydore and takes 24/7 emergency callouts across the Sunshine Coast, including Marcoola and Mount Coolum. See 24/7 emergency garage door repairs for after-hours calls, or garage door repairs for everything else.

Repairs and servicing are booked as a callout valued between $200 and $300 depending on the door size and the labour involved. Every job is done by Thom, who has 3.5 years of hands-on experience and has trained across multiple garage door brands and systems. What the callout covers is in garage door service and repair costs.