Two possible problems can lead to a garage door reversing before it even touches the floor.
How to fix a garage door opener motor.
Incorrectly set limit switches may prevent your garage door from closing completely.
05 of 09 the motor continues to run after the garage door is closed.
Garage door opener won t open all the way fix.
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 when the door reverses before it even hits the floor this is often because the close force.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet.
The garage door opener motor is an electrical device that opens and shuts a garage door without having to manually pull it down or push it up fixing motor problems may not necessarily mean disassembling it and can be addressed by certain external adjustments.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
There are a host of problems within the motor unit that might need fixing therefore look for your needed solution below.
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.