How to open a garage door without power

The short answer

Make sure the door is fully closed, then pull the red emergency release cord down until it clicks. That disconnects the door from the opener. Lift the door by its handle until it rolls fully open and stays there. When power returns, pull the cord toward the door and run the opener once to reconnect it.

That is the whole procedure for most homes with a trolley-style opener on a center rail. The details below cover the safety checks, opening from outside, locking the door while the opener is disconnected, and the battery backup option that California has required on new openers since 2019.

How to open the garage door manually from inside

1. 01Release the locks first. Clopay says to release any keyed lock or slide lock before you try to lift; opening against an engaged lock bar can damage the door.
2. 02Confirm the door is fully down. It should rest flat on the floor.
3. 03Unplug the opener. Clopay advises making sure everything is unplugged or powered down before a manual opening, so the motor does not start if power returns mid-lift.
4. 04Pull the red release cord. Pull it straight down until you hear a click. On a trolley opener it hangs from the center rail; on wall-mount or jackshaft openers it hangs from the unit itself.
5. 05Lift by the handle, not the panels. Raise the door straight up until it is fully open. Clopay says a door with properly balanced springs lifts easily and stays in place.
6. 06Confirm it stays up before you walk or drive under it.
7. 07Close it by hand once the car is out, slowly and steadily, and slide the lock bar to secure it. With the opener disconnected, nothing else holds the door shut.

How to open it from outside

Garages with no side door need an outside route. Some doors have a small keyed emergency release near the top of the door that connects to the release mechanism. Clopay's procedure is to turn the key in that lock, pull its cord to release the door, open the handle lock at the bottom if there is one, and lift. It suggests keeping the release key in your car's glovebox or console so it is not locked inside the garage. If your door has no outside release, an installer can add one; do it before the next outage.

Stop if the door feels wrong

Garage doors are heavy, and Clopay notes you may need a second person to lift. Moving too fast or with too much force can make a door spring up and slam back down.

Reconnecting the opener when power returns

1. 01Close the door by hand and slide the lock bar open. Running the opener against a locked door can damage it.
2. 02Plug the opener back in.
3. 03Pull the release cord toward the door to set the trolley to re-engage. Your owner's manual gives the exact motion for your model.
4. 04Press the wall button or remote. The opener runs and the trolley clicks back into the carriage. Clopay says one open-and-close cycle should restore normal operation.
5. 05Watch the first cycle. If the door reverses or the opener strains, stop and call a technician.

Our what to do when the power comes back on guide covers the rest of the house.

Garage door opener battery backup

California's SB 969 requires residential automatic garage door openers manufactured for sale, sold, purchased or installed in the state on or after July 1, 2019, to have a backup battery designed to work during an electrical outage. It also bars installing a replacement garage door on an existing opener without one, with a 1,000-dollar civil penalty for violations. The bill's author cited the 2017 Northern California wildfires, in which, according to the committee analysis, at least five people died during evacuation after being unable to drive out of their garages during power outages.

Outside California, some openers have a built-in battery and others accept one as an add-on. The committee analysis also notes that some older openers cannot accept a backup battery at all, which means a new opener. To find out what yours supports:

• Look for a battery compartment or a battery status light on the motor unit.
• Read the model number off the motor housing and check the maker's manual for the exact compatible battery part. Compatibility varies by model, so we do not list a universal battery here.
• Backup batteries are a consumable. Replace them when the opener's status light or app says to.
• If you live in a wildfire Public Safety Power Shutoff area, treat a working battery backup as part of your evacuation plan. See our wildfire PSPS prep guide.

Running the opener from a power station

A portable power station can run an opener with no battery bay. Check the opener's label for its rated watts or amps (amps x 120 = watts), and choose a station whose continuous and surge ratings sit well above that. Plug the opener into the station with an extension cord rated for the load, open the door, then unplug it. Never power an opener from a generator running inside the garage. Generators belong outdoors, at least 20 feet from windows, doors and attached garages (Ready.gov).

Gear to keep in the garage

You will be doing all of this in the dark. A headlamp leaves both hands free to find the cord and lift. A bright flashlight helps check springs and tracks. A mid-size power station covers the opener and more. For our full lighting list, see emergency lanterns and flashlights.

No. 1Headlamp

Black Diamond Spot 400 Headlamp

Best for: Hands-free light on AAA batteries or a rechargeable pack

• 400 lumens high / 200 medium / 6 low
• Runs on 3× AAA (included) or Black Diamond BD 1500 Li-ion pack
• Burn time on high: 2.5 hrs (AAA) / 4 hrs (BD 1500); low: 200 / 225 hrs
• IPX8 waterproof (1.1 m for 30 min)
• 86 g with AAA batteries
• Red night-vision mode, lock mode and battery meter

Tradeoffs

• · Short runtime on high; use medium or low for long nights
• · The rechargeable BD 1500 pack is sold separately

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 2Flashlight

Fenix PD36R PRO Rechargeable Flashlight

Best for: Powerful handheld light for the yard, garage or breaker panel

• 2,800 lumens max (Turbo)
• 380 m (1,247 ft) beam distance
• Up to 42 hrs runtime on its lowest mode
• 5,000 mAh 21700 Li-ion battery, USB-C charging (about 3 hrs)
• Waterproof to 2 m, dustproof, impact resistant
• 169 g (5.96 oz) with battery

Tradeoffs

• · Turbo is limited at lower battery levels and steps down when hot
• · Uses a 21700 cell, not AA; a spare cell is worth having for long outages

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 3Power station

Anker SOLIX C1000 Portable Power Station

Best for: Running a fridge, lights, phones and a CPAP through a one- or two-day outage

• 1,056 Wh capacity (up to 2,112 Wh with the matching expansion battery)
• 1,800 W continuous / 2,400 W surge AC output
• LiFePO4 battery chemistry
• 6 AC outlets
• 28.44 lb

Tradeoff

• · At about 28 lb it is a carry-to-the-car unit, not a grab-and-go bag item.

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026