Liftmaster Garage Door Reverses After Closing

This is almost always the result of a.

Liftmaster garage door reverses after closing.

My door willnt close all the way it reverses and opens. Repeat safety reverse test after adjustments. To prevent the garage door from injuring someone in the door or damaging an item in the way of the door all models of liftmaster garage door openers come installed with a safety sensor. This brain can wear out in time so you could need a replacement.

Liftmaster garage door opener won t close door. We design and engineer residential garage door openers commercial door operators and gate entry systems. This is a safety feature that has been added to garage door openers to help prevent the door from closing on a car pet or even a child. When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.

Open the garage door and watch it closely as it opens. The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. You push the button to close the garage door. I have a steady amber and green indicating light on my sensors.

Liftmaster motors will not operate when something obstructs the infrared beam between the safety sensors at the bottom of the garage door tracks. When the logic board wears out it can cause your garage door to close then open and vice versa without explanation. For the door to close correctly without reversing the safety sensors need to be aligned perfectly and there should be nothing in the way of the light beam. I even tried holding the door push button down in the closed position.

It still would open. Review adjustment step 2. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. Your garage door s logic board is the brain of your garage door opener.

It goes partway down reverses direction and goes back up again. The photo eyes send an infrared beam across the bottom of your garage door opening if that beam is broken the door will reverse. 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. My door will not close and the light bulbs blink.

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. It doesn t matter if i use the remote or push button by the door. Troubleshooting a liftmaster opener with a flashing light involves inspection of the safety reverse sensing system.