Garage Door Beam Sensor Alignment

Using a level check that the string is level.

Garage door beam sensor alignment.

The sensors are normally about 4 inches above the ground. The infrared beam from the garage door opener sensors isn t able to be seen by human eyes. The working of these sensors is quite simple. Give your garage door opener a try.

If the lights on the sensors are lit it probably means that there is another reason that your garage door isn t closing. Pull the string taut and tie to the other bracket in the same position. If you have a laser level you can use it instead of a string to align your garage door. 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.

Sensor path make sure nothing is obstructing the sensor beam. This precaution ensures that the door doesn t close when your car is in the doorway. As long as the beam isn t interrupted the door will open or close normally. It operates on a low voltage beam which completed the switch when the door is in running condition.

Do both garage sensors need to be green. If an object interrupts the beam the sensor breaks the circuit preventing the door from closing. On most brands of garage door sensors the led light on each sensor will not light up unless the sensors are aligned. In general garage door sensors block the door from closing if there is an object nearby.

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. The sensors are delicate and can easily become. Once you have finished doing this you should see a beam. Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.

This system allows them to detect obstructions like your car or a kid on a bike. To realign them adjust the sensor that seems misaligned and wait for the led lights to light up. For example 6 75 inches. 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.

One of the sensors directs a beam toward the other. If not adjust one or both of the sensors to bring the string up to level. Garage door sensors utilize a photo eye sensor and a beam of infrared light that goes between the two units. If it s not at the exact height of the other sensor you ll need to adjust it.

If the beam of light is interrupted while the garage door is closing the door will stop and rise back up. In this video i show you how to realign your garage door sensors so that the garage door can function properly. The units are placed near the ground on either side of the garage door. Garage door sensors work by shooting a beam of infrared light across the entrance of your garage to the sensor on the other side.