Garage doors may display a variety of symptoms if sensors need attention.
Garage door sensors should be tested.
Garage door sensors should be tested.
Here s what liftmaster suggests.
In this case check the alignment of the opener or better involve a technician.
Each of the sensors mounted on the garage door has a led.
Check the sensors leds.
If your garage door sensors are clean it could be the alignment or the wiring.
The latest garage door sensors are technologically advanced and even allow you to control the opening and closing through an app on your smartphone.
If the sensors are working the garage door should immediately stop closing and return to the open position.
However if the door goes back to the open position then the sensors are working as they should.
If any object blocks the path of the infrared sensors the garage door opener will not activate or will reverse if operating.
Check for incorrect wiring between the sensors and the garage door opener.
The second line of defense is a set of infrared sensors which should be mounted 4 to 6 above the floor on each side of the garage door frame.
Sometimes the sensor may be beyond repair due to wear and tear and in such a case your best bet is to replace the garage door sensor with a new one.
Eve works as a certified coding specialist.
Verify the wire connections are correct on the garage door opener.