If an object or person is in the way of the beam the closing door reverses direction.
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If you have never looked into how this technology works it can seem rather complicated at first glance.
One that sends an infrared beam and one that receives the beam.
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The garage door opener has two sensors that prevent the garage door from closing on a person or object.
It s a great safety feature.
Look for small led lights on the sensors.
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Depending on the model of sensor the lights may indicate whether the glass eyes of the sensors are obscured.
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This includes any dirt or other debris that is on the lens.
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If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
Garage door sensors help keep children and pets safe look for any physical objects that are preventing the sensors from seeing each other.
If they re turned on in both the sensors then there is no issue with the power supply.
Garage door opener sensors are also called photoelectric safety sensors.