If the remote works only when held within a few feet of the motor unit rf interference is probably the problem.
Garage door intermittently reverses.
Eventual outcome of garage door reversing mechanism failure.
Some older garage door openers do not have nicely labeled adjustment screws for force and travel limits.
First check the sensor lights.
In 1993 a law was passed in the u s.
This is almost always the result of a dirty or obstructed safety feature.
Photo eyes or safety sensors are mounted to the track on either side of the garage door about 6 inches up from the ground.
It goes partway down reverses direction and goes back up again.
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.
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.
Maybe you have to hold the garage door button down for the door to close.
You ve probably seen the mechanism in action but haven t given it much thought.
Depending on the brand.
You push the button to close the garage door.
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.
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.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
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.
Does your garage door opener stop and reverse.
If there is too much resistance the garage door opener stops and usually blinks it s light once or twice as a warning.
Requiring garage door operators to be equipped with a secondary reversing system which most operators have in the form of photo eyes.