How does the system know there is something blocking the way.
Ir garage door sensor.
Garage door sensors utilize a photo eye sensor and a beam of infrared light that goes between the two units.
Garage door sensors are safety devices that prevent the door from closing on people pets or objects in the doorway.
If one of the leds is blinking the sensors need to be realigned.
Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.
If your garage door sensors are outside of this range remove them entirely from the garage door frame and install leveled inside the safe zone.
The sensors are located above the floor at each side of the door opening and.
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Higher than that can miss many low lying objects including pets.
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Lower is easy to stand above with a foot on either side.
Each sensor has an led light on the exterior of the sensor.
The units are placed near the ground on.
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The legislation was put in place requiring garage door sensors to be placed on every garage door in 1993.