Aligning and Measuring the Height of Garage Door Remote Opener Sensors Aligning and Measuring the Height of Garage Door Remote Opener Sensors

What You'll Need
Garage door remote sensors
Length of string

If you are having trouble with your garage door remote opener opening and closing properly the problem is due, most likely, to improper height or alignment of your remote sensors. These sensors are placed horizontally even with each other across the bottom of your open garage door and will cause the door to stop moving or retract when an object breaks the infra red light connecting them.

Step 1 - Turn Off Electrical Power

When working with any electrical device it is always important to shut off power at the circuit breaker to the device. This will protect the device from damage and guard your personal safety. The circuits may be labeled or you will have to use trial and error to find the right one.

Step 2 - Measure Height of Sensors

Measure and install each sensor to be 5 to 6 inches off of the ground along the sides of the garage door frame. Make certain they are accurately measured to the same height.

Step 3 - Use a String and Level

Make sure that the sensors are attached tightly enough to keep them from moving due to gravity but loosely enough for you to make minor adjustments to their position by hand. Attach a piece of string to each of the sensor eyes and stretch the string tightly between them. Now hold a level to the string and adjust the sensors until the string is perfectly straight and level.

Step 4 - Tighten Down Sensors

After aligning your sensors with the string and level tighten down all screw and turn the power back on. Your new sensor should now work appropriately.

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