Storms knock power out across Carrollton a few times a year, and the garage door tends to be the first thing people discover they cannot use. Every automatic opener has a manual release for exactly this, and using it is simple as long as you do it in the right order. The order matters because the release also disconnects the door from the only thing holding it up if a spring has failed. Here is how to do it safely, and how to put everything back when the lights return.
First, decide whether it is safe to pull the cord
The release cord is safe to pull when the door is fully closed and the springs are intact, which covers about 95 percent of outages. Do not pull it when the door is open and you are not certain the springs are healthy: releasing an open door with a broken spring drops 150 to 250 pounds of steel.
So before touching the cord, look at the door. If it is closed, you are fine to continue. If it is stuck open or partway, check the spring over the opening: a torsion spring with a 1 to 2 inch gap in its coil is broken. If you see that, or if the door was making straining noises before the power went out, leave it alone and call for spring replacement. A door with a broken spring is not a power outage problem and the release cord will not help you.
Also make sure nobody is standing in the opening and that the car is either fully inside or fully outside. A door that shifts an inch when released should not have a bumper under it.
Step by step: releasing the trolley
The red cord hangs from the trolley, the carriage that rides along the opener rail and connects to the arm on the door. Pulling it disengages the trolley from the chain or belt so the door can move freely by hand while the opener stays put.
- Close the door fully if it is not already, using the wall button if there is still power, or by hand if the release was already pulled.
- Unplug the opener if you can reach the outlet. This keeps it from running unexpectedly if power returns while your hands are on the door.
- Grab the red handle and pull straight down, firmly. You will feel or hear a click as the lever on the trolley disengages. On many models the lever now sits at an angle instead of straight up.
- Do not pull the cord at an angle toward the door yet; that is the re-engage direction on some models and will just reconnect it.
If the handle is missing or the cord broke long ago, the lever on the trolley can be pulled by hand from a step stool. Look for the small spring-loaded arm on the underside of the trolley and pull it down and back.
Lifting the door by hand
With the trolley released, bend your knees, put both hands under the bottom edge of the door, and lift straight up. A properly balanced door takes only 10 to 20 pounds of effort even though the door weighs ten times that, because the springs carry the rest. Walk it all the way up until it stops against the rail bumper.
Two things can go wrong here. If the door feels heavy, like lifting a piece of furniture, the springs are weak or broken; set it back down gently and stop, because a heavy door can get away from you on the way up or come down on the way in. If the door goes up but will not stay up on its own, hold it while someone moves the car, then lower it hand over hand rather than letting it go. Our guide to why springs break in North Texas heat explains what a heavy door is telling you.
Once it is up, do not walk away from an open door that is only held by its springs unless you are sure it stays put. Most balanced doors will sit at the top all day. Doors with tired springs creep down slowly, and that is your cue to have them adjusted when things are back to normal.
Securing the door while the power is out
A released door is unlocked. Anyone can lift it from outside, which is a real concern during an outage that lasts overnight, and the clay soil the city sits on tends to give Carrollton long outages after ice storms when lines and poles come down across the Blackland Prairie. Most doors have a slide lock on the inside of one vertical track, a simple bar that slides into a hole in the track and stops the door from rising. Use it while the opener is disconnected.
If your door has no slide lock, a C-clamp or locking pliers clamped onto the track just above a roller does the same job. Remember to remove it before you reconnect the opener; running the motor against a locked door is a fast way to strip the drive gear or bend the door arm.
Closing the door by hand follows the same rules as lifting: both hands, controlled speed, and keep fingers out of the panel joints, which pinch as the sections fold. Lower it the last foot slowly so it lands square on the bottom seal.
Door too heavy to lift, or stuck open?
That is a spring or cable problem, not an outage problem. We answer around the clock and can usually reach you in about 45 minutes.
Re-engaging the opener when the power returns
Reconnecting takes less than a minute and there are 2 ways to do it. On most LiftMaster, Chamberlain and Genie openers, close the door by hand, plug the opener in, remove any slide lock or clamp, and press the wall button. The trolley runs along the rail until it clicks into the door arm carriage.
The other method is manual: pull the release cord at an angle toward the opener motor, or toward the door on some models, until the lever snaps back to its upright position, then slide the door by hand until the trolley clicks into the carriage. Your model label shows which direction; both are common. The clean way to confirm you are reconnected is to lift the door by hand a couple of inches. If it will not move, the trolley is engaged.
After reconnecting, run one full cycle and watch it. If the door stops short, reverses at the bottom or hesitates, the outage may have wiped the opener's travel limits, which is common on units that store settings in volatile memory. The guide to a door that won't close all the way walks through resetting limits. If the opener does nothing at all, a power surge as the lines came back may have taken the logic board, and that is an opener repair visit.
Opening from outside: the emergency key release
Everything above assumes you are inside the garage. If the garage has no other door, which is true of a lot of the two-car garages built during the city's growth years, you need a way to reach the cord from outside. That is what the small round keyed cylinder near the top center of the door is for. Turning the key and pulling the cylinder out draws a cable that pulls the release lever, and the door can then be lifted by hand from the driveway.
If your door does not have one, having an emergency release kit installed is inexpensive and worth it. Just treat the key like a house key. And if you find yourself locked out with no kit and no other entry, do not try to pry the bottom of the door up; the panels bend long before the trolley gives. Call us instead; getting people into their own garages is a routine part of emergency garage door service.
Quick reference
| Situation | Safe to pull the release? | What to do |
|---|---|---|
| Door closed, springs look normal | Yes | Pull cord, lift by hand, use slide lock |
| Door closed, feels very heavy when lifted | Pulled already; stop lifting | Set door down; springs need service |
| Door open or partway, springs intact and confirmed | Yes, with care | Support door, pull cord, lower slowly |
| Door open, visible gap in spring coil | No | Do not release; keep clear; call |
| Door crooked or cable hanging loose | No | Do not move the door; call |
| Locked out, no other entry | Use exterior key release if fitted | Otherwise call; do not pry the door |
| Power back, door will not reconnect | Not applicable | Check slide lock removed; run opener; call if it will not click in |
Practice this once on a calm afternoon. Pull the cord, lift the door, put it down, reconnect. It takes two minutes and means the next outage is an inconvenience instead of a problem. If the practice run turns up a door that is heavy, noisy or crooked, that is useful too; it is the reason the monthly garage door safety check starts with the same balance test. And if you would rather not find out during a storm, garage door repair in Carrollton is a phone call, day or night, across every neighborhood from the older streets near Coyote Ridge to the newest ones in the north.
Manual operation questions
Can I open my garage door manually if the spring is broken?
You should not try. Without the spring, a two-car door is 150 to 250 pounds of dead weight, and lifting it by hand risks dropping it on you or the car. Leave the door closed, keep people clear, and call for spring replacement. If the car is trapped and you must get out, a technician can lift and prop the door safely in minutes.
How do I reconnect my garage door opener after pulling the red cord?
Close the door by hand, remove any lock or clamp on the track, plug the opener in and press the wall button. The trolley travels along the rail until it clicks into the door arm carriage. On many models you can also pull the cord toward the opener until the lever snaps upright, then slide the door until it clicks. Confirm by trying to lift the door an inch; it should not move.
Why is my garage door so heavy to lift by hand?
A balanced door should lift with about 10 to 20 pounds of effort. If it feels far heavier, the springs have lost tension or one has broken, and the opener has been straining to lift it. Set the door down and have the springs adjusted or replaced. Continuing to lift a heavy door by hand or by opener is how people and openers get hurt.
Is the garage door secure while the opener is disconnected?
No. With the trolley released, the door can be lifted from outside by anyone. Use the slide lock on the inside of the track, or clamp locking pliers onto the track above a roller, while the opener is disconnected. Remove the lock before reconnecting the opener, or the motor will strain against it.