Liftmaster Garage Door Opener Sensor Troubleshooting

Reattach sending sensor to garage door opener using shortened wires.

Liftmaster garage door opener sensor troubleshooting.

Loosen one of them and adjust it until the light shines steadily. To interact with this component access the preview mode. Remove sensors from brackets and shorten sensor wires to 1 2 ft. If sending sensor indicator light glows steadily attach the receiving sensor.

Get the liftmaster garage door support you need from chamberlain group. If you notice the door reverses when closing you want to check the sensors first. Sensor path make sure nothing is obstructing the sensor beam. Look also for cobwebs on the door tracks because they could also be blocking the light.

Look for full service liftmaster provantage dealers recognized for their expertise and quality of service. 30 60 cm from back each of sensor. If you see a blinking light on one of the sensors it means they aren t aligned. This precaution ensures that the door doesn t close when your car is in the doorway.

When your garage door opener is not responding to any command from the remote or the door control you need to check if the opener has electricity. Another reason for the sensors to misalign is that the door track is loose. Here are some troubleshooting tips. 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.

In general garage door sensors block the door from closing if there is an object nearby. The same mechanism kicks in when other objects are placed near the door too. Liftmaster motors will not operate when something obstructs the infrared beam between the safety sensors at the bottom of the garage door tracks. If troubleshooting doesn t solve your issue it s time to contact an authorized liftmaster dealer.

Next clear the beams of any dust debris and or cobwebs that may have accumulated on the sensor lenses. Liftmaster garage door openers troubleshooting support. Troubleshooting a liftmaster opener with a flashing light involves inspection of the safety reverse sensing system. Disconnect all wires from back of garage door opener.

If you tried operating your liftmaster garage door opener with the remote control or door control and it didn t work. Firstly make sure there are no obvious obstructions. Also check to see that they are as aligned as possible. Check power supply to garage door opener.

Steve explains how to check and align your garage door opener sensors.