Locked Out With No Power? The Outside Emergency Key Release
If the garage door is your only way in and the power is out, the small keyed lock on the outside of the door is how you get in. What it is, how it works, how to install one if you do not have it, and how to keep it secure.
Plenty of garages around Greene County have no man door. The overhead door is the only way in and out. That is fine until the power goes out, or the opener dies, with the door closed. The red emergency release cord that disconnects the opener hangs inside the garage, which does not help when you are standing outside it.
The outside emergency key release exists for exactly that. It is a small keyed lock cylinder set into the top section of the door, connected by a cable to the trolley's release. Turn the key, pull, and the opener disconnects so the door can be lifted by hand from outside.
How it works
Behind the lock cylinder is a small cable that runs up to the release lever on the opener trolley. When the key is turned, the cylinder core comes out on a short tether, and pulling it tugs the cable, which trips the release exactly as pulling the red cord would. The door is now disconnected from the opener and can be lifted manually.
Once you are inside and the power is back, you reconnect the trolley by pulling the red cord toward the door (or as your manual describes) and running the opener until it clicks back in. Our post on using the emergency release correctly covers the reconnecting step, which is the part people get wrong.
Do you have one?
Look at the outside of the door, usually in the top section near the center. A small round keyed lock, about the size of a mailbox lock, is the release. If there is no lock, you do not have one.
Many doors installed with an opener never got one, particularly where the builder assumed a man door would be used. If your garage has no other entry, or the other entry is through a locked house you might also be locked out of, adding one is worth doing.
Installing one
The kit is inexpensive and installation is straightforward on most doors:
- Drill a hole through the top section at the marked location, avoiding any strut, hinge, or window frame.
- Mount the lock cylinder from outside and the retaining plate from inside.
- Route the cable up to the trolley release lever and clamp it with a little slack, so it does not trip the release on its own as the door moves.
- Test it with the door closed: turn the key, pull, and confirm the trolley releases and the door lifts.
The routing and the slack are the parts to get right. Too tight, and the door releases itself partway up; too loose, and the pull does nothing. We install these as part of an opener install or as a small standalone job.
Keeping it secure
The lock is a genuine lock, and a decent one is not easily picked, but any keyed cylinder is a potential entry point. Two things reduce the risk.
Keep the key somewhere sensible. Not on the ring you leave in the car in the driveway.
Keep the door balanced. A release only helps a thief if the door can then be lifted by hand, which it can on any properly balanced door. That is not a reason to leave the door unbalanced. It is a reason to have a slide lock or a deadbolt on the man door, and to treat the garage as the exterior door it is. Our post on garage door security covers the rest.
The alternative: battery backup
An opener with battery backup keeps working through an outage, which removes the most common reason for needing the key release. It does not help if the opener itself fails, so the two are complementary rather than either-or. See battery backup on an opener.
If you are locked out right now
If the garage is your only entry and you cannot get in, call. We can get a door open without damaging it in nearly every case, and we will fit a key release while we are there so it does not happen again. Our opener repair page covers the service.
Common questions
Can I add a key release to any opener? To any rail-type opener with a trolley release, yes. Side-mount jackshaft openers use a different release arrangement.
Does the key release work if the door has a manual slide lock engaged? No. The release disconnects the opener; a slide lock still holds the door. If you have both, keep the slide lock disengaged while the opener is in use.
Will it trip on its own? Only if the cable is routed too tight. Correct slack prevents it.
Is it a security risk? A small one, comparable to any keyed lock. Keep the key sensible and the man door secure.
Call (423) 262-3147 or request a free quote.
Garage door trouble in the Greeneville area?
Greggs Garage Door Services offers flat-rate repair and new door installation across Greene County, TN. A real person answers the phone, and the quote is always free.
