Liftmaster Garage Door Closes Then Opens Again

If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned.

Liftmaster garage door closes then opens again.

Your garage door s logic board is the brain of your garage door opener. The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again. Hopefully after you read this you won t have the same problem in the future. 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 may also be loose wire connections inside the button housing itself. To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down. These steps should fix most doors. Close the garage door with the opener and watch it closely as it closes.

As these wires short against the housing the electrical impulse causes the door opener to activate. Try opening the garage door with the remote and see what happens. Don t just assume that if the path is clear that the sensors are ok. Get logic board replacement.

This brain can wear out in time so you could need a replacement. If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs. This will cause the trolley to move into position and reconnect to the garage door. 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.