Garage Door Closes Then Opens Liftmaster

To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down.

Garage door closes then opens liftmaster.

Years ago garage door openers were required to utilize safety sensors to prevent doors from closing on small children. Anytime the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. 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. Tweak them a bit.

These steps should fix most doors. I hit the control agian and sometimes it will go back down and raise agian and read more. Now press the remote control. Chamberlain liftmaster professional 1 2 hp garage door opener that tends to open part way say 12 inches or so then stop.

Here s a rundown of some of the possible reasons this can be happening. As is the case with so many issues at the home there s no one reason why your garage door closes then opens. Never permit anyone to cross path of moving door. 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.

Make sure the small light on each sensor is lit and not flickering. 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. Your travel down setting needs to be adjusted.

The opener s force setting may not be set correctly. Your garage door is programmed to travel a certain distance before it closes. Try opening the garage door with the remote and see what happens.