How To Fix Garage Door Sensor

A garage door sensor is a device that detects when the garage door is open or closed. It is an important safety feature that helps to prevent the door from closing on people or objects, and it can also be used to trigger other devices, such as lights or an alarm system.

If your garage door sensor is not working properly, it is important to fix it as soon as possible. Here are some troubleshooting tips that can help you fix a garage door sensor.

1. Check the batteries

The most common reason for a garage door sensor to stop working is because the batteries are dead. Replace the batteries with new ones and see if that fixes the problem.

2. Check the alignment of the sensors

The garage door sensors need to be aligned properly in order to work correctly. If the sensors are misaligned, they will not be able to detect the door when it is open or closed.

To check the alignment of the sensors, open the garage door and look at the sensors. The sensors should be facing each other and should be about 6 inches apart. If the sensors are not aligned, adjust them until they are.

3. Clean the sensors

Dirt and debris can build up on the garage door sensors over time, which can prevent them from working properly. Clean the sensors with a soft cloth and some rubbing alcohol.

4. Check the wiring

The garage door sensors are wired to the garage door opener. If the wiring is loose or damaged, the sensors will not work properly.

To check the wiring, open the garage door opener and look for any loose or damaged wires. If you find any loose wires, tighten them. If you find any damaged wires, replace them.

5. Replace the sensors

If you have tried all of the above troubleshooting tips and the garage door sensor is still not working, you may need to replace the sensors.

To replace the garage door sensors, follow these steps: