Liftmaster Garage Door Opener Closes Then Opens

Hold down a button on your remote garage door opener.

Liftmaster garage door opener closes then opens. Check power door lock. Get logic board replacement. If your garage door opens ok but won t close then it s possible the safety reversing sensors are not correctly aligned. There may also be loose wire connections inside the button housing itself.

The power door lock must be deactivated anytime you open the garage door. Loosen the receiving eye wing nut and adjust sensor until it receives the sender s beam. 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. This will send out a radio signal to the ceiling mounted motor unit.

When the green indicator light glows steadily tighten the wing nut. Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening. As these wires short against the housing the electrical impulse causes the door opener to activate. Your logic board needs replaced.

Close the garage door with the opener and watch it closely as it closes. The transmitters remotes will not work to close the garage door. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. The garage door opens partially.

This brain can wear out in time so you could need a replacement. Your garage door s logic board is the brain of your garage door opener. You will find that the door will only move an inch or so in the close direction and reverse. This feature prevents the motor inside the garage door opener from damaging.

If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs. We design and engineer residential garage door openers commercial door operators and gate entry systems. 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. 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.

When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.