How To Replace Garage Door Sensors

Garage door sensors are vital for safety and security. They prevent the door from closing on people or objects, and they also help to keep intruders out. Over time, sensors can become damaged or misaligned, which can cause the door to malfunction. If you're having problems with your garage door, one of the first things you should check is the sensors.

Replacing garage door sensors is a relatively simple task that can be completed in about 30 minutes. Here's a step-by-step guide:

Step 1: Gather Your Tools and Materials

You will need the following tools and materials:

New garage door sensors
Screwdriver
Drill
Measuring tape
Pencil

Step 2: Remove the Old Sensors

Locate the old sensors on either side of the garage door, usually about 6 inches from the ground. Use a screwdriver to remove the screws that hold the sensors in place.

Step 3: Measure and Mark the Location for the New Sensors

Use a measuring tape to measure the distance between the two old sensors. Mark this distance on the floor or wall with a pencil.

Step 4: Install the New Sensors

Place the new sensors in the marked locations. Use a screwdriver to secure the sensors in place.

Step 5: Test the Sensors

Close the garage door and then open it again. The sensors should cause the door to stop and reverse if anything passes between them.

Troubleshooting

If you're having problems getting the sensors to work, here are a few things to check:

Make sure that the sensors are aligned correctly. The beams from the sensors should be directly opposite each other.
Check the wiring. The wires from the sensors should be securely connected to the garage door opener.
Replace the batteries in the sensors. The batteries should be replaced every year or two.