T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Intermittent garage door opener problems.
If the remote works only when held within a few feet of the motor unit rf interference is probably the problem.
Garage door openers have an adjustment screw that controls the closing force the pressure with which a door is allowed to descend before the motor switches off.
Garage door opener won t open all the way fix.
Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
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.
Two possible problems can lead to a garage door reversing before it even touches the floor.
Try making small adjustments.
This is related to the up limit switch.
This allows you to open or close the door manually so your car isn t stuck in the garage until the power comes back on.
This switch is usually attached to a rope that can be pulled or a knob that can be turned to disconnect.