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.
Intermittent garage door opener problems.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
Try making small adjustments.
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.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Every garage door opener comes with a disconnect switch in case you lose power.
Two possible problems can lead to a garage door reversing before it even touches the floor.
If the remote works only when held within a few feet of the motor unit rf interference is probably the problem.
This switch is usually attached to a rope that can be pulled or a knob that can be turned to disconnect.
This is related to the up limit switch.
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.