It may be your garage door sensor.
My garage door closes then opens again.
You push the button to close the garage door.
If it closes before that distance has been traveled it thinks something is wrong and it reopens to help prevent any damage or safety risk.
This is almost always the result of a dirty or obstructed safety feature.
Turn the down limit switch screw clockwise one turn with a flat blade screwdriver if the garage door closes and then begins to open back up.
Your garage door is programmed to travel a certain distance before it closes.
But changes in weather conditions can causes your garage door components to shift or contract.
The garage door will automatically go in reverse whenever it hits an obstruction such as the driveway or ground.
Measure the distance of the gap from the bottom of the.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs to be adjusted.
Your garage door opens when it hits the ground.
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.
There are four common problems with garage door sensors three of these homeowners can fix themselves.