Liftmaster Garage Door Opener Closes Then Opens

We design and engineer residential garage door openers commercial door operators and gate entry systems.

Liftmaster garage door opener closes then opens.

If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs. When the logic board wears out it can cause your garage door to close then open and vice versa without explanation. Hold down a button on your remote garage door opener. The problem is either due to a blocked path between the sensors dirty eyes loose wires at the sensors or at the motor head or just bad sensors.

Your logic board needs replaced. This feature prevents the motor inside the garage door opener from damaging. The power door lock must be deactivated anytime you open the garage door. Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening.

Close the garage door with the opener and watch it closely as it closes. So there you have it. If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned. 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.

In the future when the unit receives that specific signal it will open the garage door it s attached to. The garage door opens partially. This will send out a radio signal to the ceiling mounted motor unit. Your garage door s logic board is the brain of your garage door opener.

When the green indicator light glows steadily tighten the wing nut. There may also be loose wire connections inside the button housing itself. 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. Within 30 seconds of pressing the learn button press down on a button on the remote.

The transmitters remotes will not work to close the garage door. Loosen the receiving eye wing nut and adjust sensor until it receives the sender s beam. You will find that the door will only move an inch or so in the close direction and reverse. Get logic board replacement.

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