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.
Why does my garage door stop and go back up.
Quite often the cause of your door s malfunction is an improperly set garage door limit.
This brain can wear out in time so you could need a replacement.
Your garage door s logic board is the brain of your garage door opener.
This requires a simple turn with.
It s important to get this switch at just the right distance from the motor so that the door is able to close all the way but the motor also knows to stop running.
Your garage door has set limit switches that instruct the motor when to stop running both when it is opening and when it is closing.
The logic board receives and responds signals to any remote.
Other times it may be a leaf hanging from the bottom of your garage door.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Doing this can save you some amount of cash.
It goes partway down reverses direction and goes back up again.
Try making small adjustments.
If this torsion exceeds the strength or tension in the springs that stabilize the motor assembly the assembly twists.
If your garage door opens and suddenly stops it might be because of your logic board.
Sometimes there could be a box or a garbage can sitting too close to the eyes.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
Get logic board replacement.
You push the button to close the garage door.
If there is enough resistance to the movement of the door this force is transferred back as torsion twisting force in the motor assembly.
A careless or rushed parking job can cause the car s bumper to block the sensor.
This is almost always the result of a dirty or obstructed safety feature.
Sometimes the sensors will be in alignment and just as the door gets close to being shut it will vibrate enough to push one sensor off.
This is related to the up limit switch.
A garage door that only opens halfway becomes a nuisance for many reasons.
Your garage door sensor works by having two photo sensitive devices on either side of the garage door.