How To Test Garage Door Sensors

Activate the garage door opener to close the door on the object.

How to test garage door sensors.

If the lights are off in one or both sensors however it points to an issue with the power supply. Place an object such as a brick on the ground directly in the path of the door. This precaution ensures that the door doesn t close when your car is in the doorway. Measure the height of your garage door sensors.

The door should automatically reverse when it makes contact with or senses the object in its path. The same mechanism kicks in when other objects are placed near the door too. In general garage door sensors block the door from closing if there is an object nearby. If the garage door closes it indicates that the sensors are not functioning.

If something goes wrong with the sending eye the receiving eye will shut off also. You can choose to press the close button located on the wall of the garage or the remote button. Place the box in the garage doorway making sure the box is in front of the garage door sensors. Follow these simple steps to test your garage door s automatic safety reverse sensors.

A lack of power supply is one of the most common causes of a malfunctioning garage door sensor. Test the sensors ensure that the door is open and activate the opener. Sensor path make sure nothing is obstructing the sensor beam. Modern day garage door safety sensors are usually led and if the sensors are aligned correctly with the two beams connecting they should light up green.

If the lights are turned on for both sensors then you can rule out a problem with the power supply. Do not handle them more than necessary or you might well put them out of alignment. Take a clean cloth and very gently wipe them in case they have accumulated dust or residue of some sort. Here s a quick way to test the receiving eye to see if there is a problem.