Liftmaster Professional Garage Door Closes And Immediately Opens

You may find something blocking the light that passes between them or you may find that cleaning the lenses solves the problem.

Liftmaster professional garage door closes and immediately opens.

Get the liftmaster garage door support you need from chamberlain group. As these wires short against the housing the electrical impulse causes the door opener to activate. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. When your liftmaster garage door opener opens and closes by itself here are the troubleshooting tips you need to follow.

Remove the bell wire from the single button control station s terminals and operate the garage door opener from the remotes. Disconnect the control station. Get logic board replacement. We design and engineer residential garage door openers commercial door operators and gate entry systems.

If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs. Your garage door s logic board is the brain of your garage door opener. 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. If the door stops short of closing lengthen the close limit by turning the control knob in the direction indicated usually counterclockwise.

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. Close the garage door with the opener and watch it closely as it closes. View the wide range of garage door openers available from liftmaster. Find and compare our garage door openers today.

There may also be loose wire connections inside the button housing itself. Look also for cobwebs on the door tracks because they could also be blocking the light. They are usually on the motor housing and you access them by opening a panel or removing the housing cover. So it seems to me both sensors are working properly.

Professional installation is also available. If i put my hand between the sensors the green sensor will go dark. If i manually close the door and quickly run to the door and obstruct the sensor the door will immediately go back up. Most garage door openers have an open and close limit control.

So again i think the sensors are ok. When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.