Garage Door Closes Then Opens Liftmaster

The force setting tells the opener how much resistance the door should provide and if the opener detects more than is allowed the door will reverse.

Garage door closes then opens liftmaster.

Now press the remote control. Anytime the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. Close the garage door with the opener and watch it closely as it closes. These steps should fix most doors.

To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down. If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs. The opener s force setting may not be set correctly. Always keep garage door in sight until completely closed.

As is the case with so many issues at the home there s no one reason why your garage door closes then opens. Tweak them a bit. Here s a rundown of some of the possible reasons this can be happening. This will cause the trolley to move into position and reconnect to the garage door.

The simple stuff if the garage door connected to your liftmaster opener only opens part of the way or it begins to open but then reverses check the track and the surrounding area for any objects. Your garage door is programmed to travel a certain distance before it closes. Never permit anyone to cross path of moving door. Your travel down setting needs to be adjusted.

Chamberlain liftmaster professional 1 2 hp garage door opener that tends to open part way say 12 inches or so then stop. I hit the control agian and sometimes it will go back down and raise agian and read more. Liftmaster uses the protector system which projects an invisible light beam across the door opening and automatically opens the door if something someone crosses it s path.