Garage Door Safety Sensors Not Working

Look for small led lights on the sensors.

Garage door safety sensors not working. If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply. 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. According to liftmaster issues with the safety sensor wiring typically occur because of a poor connection incorrectly connected wires or a short in the wire from a staple. When the safety sensor is not properly aligned or something is obstructing the light beam the garage door will fail to close.

Damaging a photo eye sensor will also cause an opener to fail. Garage doors may display a variety of symptoms if sensors need attention. Cycle the garage door through the opening and closing actions using the control on the garage wall or the remote unit from a vehicle. By simply moving one of the photo eye sensors a garage door opener will not operate properly.

If the door does not close completely without hesitation. The sensors have to be aligned with each other and also have to be connected correctly to the garage door system in order to work. Put a tube on the electric eye on each side of the garage door one side for mornings the other side for evenings 5 make sure the tube is extending straight out from the electric eye. You can also disconnect the sensors altogether but doing this will prevent most garage doors from working.

A common cause of a malfunctioning garage door sensor is lack of power supply. If they re turned on in both the sensors then there is no issue with the power supply. If it isn t it could get in the way of the electronic beam and prevent the garage door from closing because the cardboard tube is breaking the beam. Place the box in the garage doorway making sure the box is in front of the garage door sensors.

If your sensors or garage door motor is blinking or your door doesn t close it s a sign you could have faulty sensors. If any object blocks the path of the infrared sensors the garage door opener will not activate or will reverse if operating. The photo eye sensor for a garage door opener is typically placed approximately two inches off of the ground. Luckily you can set most automatic garage doors to a manual mode to bypass the sensors.

If you feel any kind of disturbance call an expert. As they are mechanical parts they will need oiling from time to time.