Photo-eye sensors are an important part of your garage door safety system. Your Neighborhood Garage Door Repair Team has information and tips to understand the system. To prevent deaths and injury by garage doors dropping on people photo eye sensors became a mandatory safety law in 1993.
What are Photo Eye Sensors and How do They Work?
Photo-eye sensors are small light emitting devices. They are installed beside the garage door rails about 6 inches from the ground. The sending sensor with the amber light sends a light signal. The receiving sensor on the other side has a solid green light. As long as these two sensors are ‘talking’ to each other your garage door works as it should. If the light is broken your garage door will not lower. Every time you try to close the door it will stop and reverse.
What causes Photo Eye Sensors to Stop Working?
A common problem causing sensors to stop working is dust, dirt or cobwebs that cover the photo eyes. The sensors are close to the ground. It’s not surprising there is a lot of dirt close to the sensors that can accumulate.
As we store a lot of things in garages it’s not uncommon to have something fall and hit the photo eye sensor. Garages store a lot of different items. Anything can fall and hit the photo eye sensor causing misalignment. When that happens the safety beam is broken and stops your door from lowering.
The other problem that happens is people or animals. There is a lot of traffic in a garage, and anything hitting the sensors can cause them to stop working properly. As we walk back and forth sensors get bumped causing them to move out of alignment.
How Can I Fix Misaligned Sensors?
Properly working receiving sensors should have a solid green light. A red light, or a flashing green light, is an indicator the sensor is not receiving the beam. Realignment is an easy problem to resolve.
- Check nothing is under the garage door path breaking the sensor transmission.
- Check the area around the sensors for dust or cobwebs. Use a soft, clean cloth wipe to off the lenses of the sensors. You might consider making this a part of your routine maintenance program.
- Sweep the area around the sensors removing any dirt, leaves, or debris.
- Photo eyes are mounted on brackets with wing nuts. Loosen the wing nut on the receiving sensor and move it until the light turns solid green. If that doesn’t work try the same thing with the sending sensor.
- If the lights are in position but still not working look for loose or broken wires. The sensors may not be receiving the electricity needed to operate.
If the problem continues call a professional to troubleshoot the problem.
Give Us A Call
If your garage door still refuses to close give your Neighborhood Garage Door Team a call. We will be right over to get your garage door back in working order again.