So, my garage door isn't working.

[Squashfan]

Well my parents garage door hasn't been working. It would stop about 3" from the floor. I decided that since the tracks haven't been lubed since ,well, ever. I scrubbed the tracks with a wire brush to remove the built up gunk. Then lubed the hinges and tracks with 3in1 garage door lube. All the rails. I think I know what I did wrong, too. I just read an Ehow and they said to ONLY lube the curve in the rails. Ooops.

 

[Codger_64]

Moreso, you might unhook the chain/cable, close the door all the way, then rehook the chain/cable to the motor. Be sure to uplug it first or you might lose a finger or two.

 

[Squashfan]

Moreso, you might unhook the chain/cable, close the door all the way, then rehook the chain/cable to the motor. Be sure to uplug it first or you might lose a finger or two.

I assume you are talking about the drive chain. Is that correct?

 

[US-STEEL]

Make sure there's nothing blocking the sensors. Look on the inside of the garage door, down near the bottom, just to the left and right of the door opening. They should each have an LED lit to indicate that they sense each other. Check to ensure there are no blockages in the path directly across from each sensor, also check to see if they may have been bumped out of alignment.

 

[shunsui]

If none of that works, read the owners manual and try adjusting where the door stops. There's a couple of adjustment screws.

If all else fails Chamberlain/LiftMaster makes good replacements.

 

[Gollnick]

Where it stops is adjustable.

There are four techniques used: Old units have limit switches either on the door or the track. Newer units have a gear thing inside of the motor unit and adjustable limit switches on it. And the latest units have a revolution counter on the motor shaft. My guess is that you have one of the latter two varieties and something just got off. You just need to make adjustments.

On the units with a gear mechanism inside the motor unit, there are two screwdriver-adjusted set screws on the side of the motor unit, one for where it stops open and the other for where it stops closed. Obviously, just adjust the close one.

On the newest units with the revolution counter, you'll have to check the manual for how to adjust it. Just google the make and model number and you'll find the manual.

 

[jstrykr74]

If none of that works, read the owners manual and try adjusting where the door stops. There's a couple of adjustment screws.

If all else fails Chamberlain/LiftMaster makes good replacements.

I replaced all of my openers with their jackshaft models and couldn't be happier. Much more quiet and secure (much harder to trip the release from outside the garage and remote slide locks instead of just using the motor to hold the door shut).