Garage Door Beam Sensor Alignment

One of the sensors directs a beam toward the other.

Garage door beam sensor alignment. The infrared beam from the garage door opener sensors isn t able to be seen by human eyes. Garage door sensors work by shooting a beam of infrared light across the entrance of your garage to the sensor on the other side. Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm. Once you have finished doing this you should see a beam.

It is a beneficial device if you have kids or pets in your house. To realign them adjust the sensor that seems misaligned and wait for the led lights to light up. On most brands of garage door sensors the led light on each sensor will not light up unless the sensors are aligned. If the beam of light is interrupted while the garage door is closing the door will stop and rise back up.

For example 6 75 inches. The units are placed near the ground on either side of the garage door. If it s not at the exact height of the other sensor you ll need to adjust it. To adjust the sensor loosen the wing nut with your wrench and set t it to the exact height that the other sensor is at.

Pull the string taut and tie to the other bracket in the same position. This system allows them to detect obstructions like your car or a kid on a bike. Garage door sensors utilize a photo eye sensor and a beam of infrared light that goes between the two units. In this video i show you how to realign your garage door sensors so that the garage door can function properly.

In this case you will set up the level aligned with one sensor then adjust the opposite sensor until the beam of your laser level is hitting the sensor. This precaution ensures that the door doesn t close when your car is in the doorway. The working of these sensors is quite simple. Give your garage door opener a try.

Sensor path make sure nothing is obstructing the sensor beam. In general garage door sensors block the door from closing if there is an object nearby. If the lights on the sensors are lit it probably means that there is another reason that your garage door isn t closing. As long as the beam isn t interrupted the door will open or close normally.

If an object interrupts the beam the sensor breaks the circuit preventing the door from closing. If you have a laser level you can use it instead of a string to align your garage door. Using a level check that the string is level. These are located slightly above the ground on both the right and left sides of the garage doors.

The same mechanism kicks in when other objects are placed near the door too. Tie a string long enough to span the width of the garage door around the bracket on one side so that the string will line up with the sensor lens. If not adjust one or both of the sensors to bring the string up to level. Do both garage sensors need to be green.