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How Do I Reset My Safety Sensors for My Garage Door?

Garage door openers safety sensors are an important safety feature that helps prevent accidents and injuries caused by the garage door closing on people or objects. If your garage door opener safety sensors are misaligned, it's important to realign them to ensure the safety of your family and belongings. In this article, Garage Door Grunts will show you how to realign your garage door opener safety sensors in a few simple steps.

Step 1: Locate the Safety Sensors

The safety sensors are usually located near the bottom of the garage door opener on either side of the door. They are small boxes with a lens and are connected to the opener with wires running on either the outside of your walls or on the inside of your walls hidden with a junction box and cover plate.

Step 2: Check for Obstructions

Check for any obstructions such as debris, cobwebs, or dirt that may be blocking the sensor lens. Clean the lens and remove any obstructions.

Step 3: Check the Alignment of the Sensors

Use a ruler or measuring tape to measure the distance between the bottom of the sensors and the ground. The sensors should be positioned 6 inches off the ground and should be level with each other. If they are not level or not positioned correctly, use a screwdriver to adjust their placement.

Step 4: Test the Sensors

Close the garage door and place an object, such as a cardboard box, in the path of the safety sensors. The garage door should automatically reverse when it meets the object. If it does not, the sensors may need to be realigned again or there may be a problem with the openers force settings or your opener may have potential wiring issues.

Step 5: Repeat on the Other Side

Repeat the process on the other sensor to ensure both are aligned correctly.

Step 6: Check the LED Lights

The LED lights on the safety sensors should be illuminated when the garage door opener is in operation. If the lights are not on, it may indicate a problem with the wiring or the sensors themselves. In this case, you may need to consult a professional such as Garage Door Grunts for further assistance.


In conclusion, realigning your garage door opener safety sensors is a simple process that can be done in a few easy steps. By ensuring your sensors are functioning properly, you can ensure the safety of your family and belongings. This can also prevent you from accidentally leaving your garage door open. If you encounter any problems or are unsure about the realignment process, give Garage Door Grunts a call and we can assist you today!

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