Liftmaster Garage Door Opens After Closing

This brain can wear out in time so you could need a replacement.

Liftmaster garage door opens after closing.

These adjustments allow you to program or set where the door will stop in the open and close position and regulates the amount of force needed to open and close your door. When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted. The protector system safety reversing sensors years ago garage door openers were required to utilize safety sensors to prevent doors from closing on small children. Your garage door s logic board is the brain of your garage door opener.

In garage door operators made after 1993 there are required safety features that open the door during the close cycle when they detect something blocking the door. Get logic board replacement. This is done with the help of sensors in the motor and on each side of the opening near the floor and mounted on the tracks. Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening.

This feature prevents the motor inside the garage door opener from damaging. When the logic board wears out it can cause your garage door to close then open and vice versa without explanation. 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. Check power door lock.

Close the garage door with the opener and watch it closely as it closes. The power door lock must be deactivated anytime you open the garage door. Measure the height where the door stops while it is being opened. The garage door opens partially.

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. Whether you have a belt drive chain drive or wall mount model find helpful resources manuals videos and more to help you diagnose and fix the problem. 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. Liftmaster garage door openers troubleshooting support get the liftmaster garage door support you need from chamberlain group.