Liftmaster Professional Garage Door Closes And Immediately Opens

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.

Liftmaster professional garage door closes and immediately opens.

Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. Get the liftmaster garage door support you need from chamberlain group. We design and engineer residential garage door openers commercial door operators and gate entry systems. 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.

If i put my hand between the sensors the green sensor will go dark. When the logic board wears out it can cause your garage door to close then open and vice versa without explanation. Look also for cobwebs on the door tracks because they could also be blocking the light. View the wide range of garage door openers available from liftmaster.

This brain can wear out in time so you could need a replacement. If i manually close the door and quickly run to the door and obstruct the sensor the door will immediately go back up. There may also be loose wire connections inside the button housing itself. When your liftmaster garage door opener opens and closes by itself here are the troubleshooting tips you need to follow.

Your garage door s logic board is the brain of your garage door opener. Remove the bell wire from the single button control station s terminals and operate the garage door opener from the remotes. You may find something blocking the light that passes between them or you may find that cleaning the lenses solves the problem. Most garage door openers have an open and close limit control.

So again i think the sensors are ok. Liftmaster garage door opener won t close door. Find and compare our garage door openers today. Professional installation is also available.

Close the garage door with the opener and watch it closely as it closes. So it seems to me both sensors are working properly. As these wires short against the housing the electrical impulse causes the door opener to activate. When the door won t close or it closes only part way and immediately opens again the safety sensors are the first thing to check.

Disconnect the control station. They are usually on the motor housing and you access them by opening a panel or removing the housing cover.