Maybe you have to hold the garage door button down for the door to close.
Garage door intermittently reverses.
When the garage door opener works intermittently the logic board may be experiencing radio frequency rf interference from nearby sources such as security lights ham radios and some electronics.
You ve probably seen the mechanism in action but haven t given it much thought.
If there is too much resistance the garage door opener stops and usually blinks it s light once or twice as a warning.
It goes partway down reverses direction and goes back up again.
First check the sensor lights.
Requiring garage door operators to be equipped with a secondary reversing system which most operators have in the form of photo eyes.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Photo eyes or safety sensors are mounted to the track on either side of the garage door about 6 inches up from the ground.
Depending on the brand.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
This is almost always the result of a dirty or obstructed safety feature.
Eventual outcome of garage door reversing mechanism failure.
The solution is either to adjust the tracks on either side of the door grease the rollers adjust the spring or fix the track that the opener caddy runs along.
Does your garage door opener stop and reverse.
If the remote works only when held within a few feet of the motor unit rf interference is probably the problem.
A garage door auto reverse is pretty much what it sounds like a system which forces the door to quickly reverse if it encounters an obstacle like your car your cat your chihauhua or your child.
If the door reverses part way down and you are sure there is no obstruction or binding increase the closing force a small amount and try it again.
This video will show you a few quick.
Some older garage door openers do not have nicely labeled adjustment screws for force and travel limits.
Reverses on its own if the garage door only travels down an inch or so before reversing something is probably blocking the beam between the two safety sensors at the bottom of the rails or the sensors aren t aligned.