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.
Garage door stopper switch.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
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Adjust the close limit adjustment screw on the door opener motor in small increments until the door stops upon touching the floor.
Amazon s choice for genie garage door stop switch.
Garage door reverses immediately after touching the floor.
Open the garage door and watch it closely as it opens.
When the garage door immediately leaps upward after touching the floor this too is a close limit switch problem.
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.
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