Garage Door Not Closing Light Flashing Liftmaster

The main light will blink 10 times indicating a problem.

Garage door not closing light flashing liftmaster. You may want to check the back of the motor unit. Liftmaster uses the protector system which projects an invisible light beam across the door opening and automatically opens the door if something someone crosses it s path. Inspect door control wires for a short staple in wire replace as needed. Check if something is blocking the way of the safety sensor.

The protector system safety reversing sensors years ago garage door openers were required to utilize safety sensors to prevent doors from closing on small children. If the sensor indicator lights do not light replace the safety sensors. The back of the motor has a circuit board with a service light as well. Door will close if i press and hold button on wall.

If necessary you can close the garage door by pressing and holding the door control push bar until down travel is completed. Eliminate any item in between the sensors. My chamberlain liftmaster garage door opener light fixture flashes and will not close when using remote. You ll need to hire a professional to replace the wiring entirely or check to see if the wire disconnected from the opener and reconnect it.

When the safety sensor is not properly aligned or something is obstructing the light beam the garage door will fail to close. If the opener cannot detect that the safety sensors are properly working or connected then the opener lights will flash and the door will refuse to close. To troubleshoot your liftmaster safety sensors. If your garage door sending sensor is showing a yellow light and the other does not show a green light it is likely they are misaligned.

The lock button on the door control in on. When you see you garage door opener lights flashing and the garage door will not close it could be the lock button or the safety reversing sensors. The sensors appear to be working as the sending and receiving led glow steadily. Garage door light flashing but won t close.

An open door will not close if the infrared beam is broken. The led on the motor will also blink and serves as a diagnostic tool for troubleshooting. The blink rate on the garage door opener service light points to various error codes. Liftmaster motors will not operate when something obstructs the infrared beam between the safety sensors at the bottom of the garage door tracks.

Led is not lit on door control.