Even small items in the path or dust covering the sensor could cause an issue.
How to check garage door sensor alignment.
Measure the height of your garage door sensors.
Firstly you ll need to cut off the power to your garage door properly.
You ll find this in your home s breaker box.
Turn off the power to your sensors by tripping the fuse for your garage.
In this case check the alignment of the opener or better involve a technician.
How to tell if garage door sensor is bad.
Loosen the screws that mount each of your garage door sensors.
Sensor power reconnect the sensor to its power supply.
The best way to do this is to trip the.
They should be at each side of the garage door near the ground.
How to check if garage door sensors are working 1.
Sensor path make sure nothing is obstructing the sensor beam.
Locate your garage door sensors.
If the garage door closes it indicates that the sensors are not functioning.
Double check to make sure nothing is breaking the beam.
Slide each garage door sensor downward so it is as.
Place the box in the garage doorway making sure the box is in front of the garage door sensors.
Next check the led light on each sensor to see if it s lit.
Don t take them all the way out.
If the sensors are dirty take a soft damp cloth and wipe them off.
Sensor lenses give sensor lenses a good.
Obtain a few cardboard boxes that are higher than the height of your.
Ensure that the door is open and activate the opener.