Another common cause of garage doors acting this way is a faulty rpm sensor.
Garage door starts to close then stops and goes back up.
One for the opening limit and one for the closing limit.
You might need to consider replacing it if your door is not working properly or you may purchase a new opener.
You push the button to close the garage door.
If these can t see each other when the door is almost shut it will send a signal to the garage door motor to open back up.
Your garage door sensor works by having two photo sensitive devices on either side of the garage door.
When the opener reverses the screw turns the opposite way and the nut travels back.
This is almost always the result of a dirty or obstructed safety feature.
The logic board receives and responds signals to any remote.
Parts can be purchased in online stores or directly from the manufacturer.
Consult your owners manual or a trained garage door technician in replacing the rpm sensor.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
Quite often the cause of your door s malfunction is an improperly set garage door limit.
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It goes partway down reverses direction and goes back up again.
Photo eyes or safety sensors are mounted to the track on either side of the garage door about 6 inches up from the ground.
Your garage door s logic board is the brain of your garage door opener.
If your garage door opens and suddenly stops it might be because of your logic board.
A garage door that only opens halfway becomes a nuisance for many reasons.
A careless or rushed parking job can cause the car s bumper to block the sensor.
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.
Doing this can save you some amount of cash.
This requires a simple turn with.
Get logic board replacement.
This brain can wear out in time so you could need a replacement.
The photo eyes send an infrared beam across the bottom of your garage door opening if that beam is broken the door will reverse.