Liftmaster Garage Door Sensors Troubleshooting

High quality rigorously tested and durable only liftmaster parts are recommended for repairing your garage door opener.

Liftmaster garage door sensors troubleshooting.

If you see a blinking light on one of the sensors it means they aren t aligned. Get the liftmaster garage door support you need from chamberlain group. Loosen one of them and adjust it until the light shines steadily. To interact with this component access the preview mode.

If sending sensor indicator light glows steadily attach the receiving sensor. If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply. Raise the garage door using the control button on the garage wall or the remote control unit from a vehicle. Liftmaster garage door openers troubleshooting support.

The liftmaster garage door opener lights will flash for ten times. If they re turned on in both the sensors then there is no issue with the power supply. Inspect each sensor to make sure the green or red power indicator lights are. Remove sensors from brackets and shorten sensor wires to 1 2 ft.

Troubleshooting a liftmaster opener with a flashing light involves inspection of the safety reverse sensing system. To troubleshoot your liftmaster safety sensors. Reattach sending sensor to garage door opener using shortened wires. Another reason for the sensors to misalign is that the door track is loose.

Look for small led lights on the sensors. Look also for cobwebs on the door tracks because they could also be blocking the light. Disconnect all wires from back of garage door opener. When the safety sensor is not properly aligned or something is obstructing the light beam the garage door will fail to close.

Eliminate any item in between the sensors. Liftmaster motors will not operate when something obstructs the infrared beam between the safety sensors at the bottom of the garage door tracks. A common cause of a malfunctioning garage door sensor is lack of power supply. 30 60 cm from back each of sensor.

An open door will not close if the infrared beam is broken.