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How to replace garage door sensors? Best Way to replace

By Farrukh Jhanzaib
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A growing number of people are choosing electric garages, and garage door sensors have become more popular. Despite their widespread popularity, many people are still unaware of their true functions. The sensors, in short, make sure the garage door closes smoothly. The sensors will identify any obstruction in the way and stop any further forward movements. Moreover, it avoids potential harm to the garage door. It can prove challenging to identify malfunctioning sensors. How to replace garage door sensors?

In particular scenarios, knowing how to fix garage door sensors might be valuable. Although repairing garage door sensors might appear tricky, we’re going to examine an in-depth strategy to make it look easy.

Pre-replacement preparations:

The garage door sensors are intricate and pricey sometimes. As a result, they require careful maintenance. There is a safety function on garage door sensors. Consequently, the sensor may fire rays along its motion path. The rays are intended to locate anything that gets in the way. Moreover, it is a safety feature, particularly if you have dogs and children roaming around.

replace garage door sensors

How to replace garage door sensors:


Gather the equipment:

Ensure you have all the necessary tools before beginning. This also involves the purchase of fresh garage sensors. Even more, verify the condition of the workspace to avoid any mishaps.


Take the sensor out of the power source.


You need a ladder at this stage. Before continuing, unplug the sensor from the power supply. It stops the power from reaching the sensors and the garage mechanism’s motorized section. You can make sure you’re working in an appropriate environment by switching off the electricity.


Pull off the sensors:

After disconnecting the power, take out the safety sensor and detach it from the casing. After locating the cables, cut them approximately one inch away from the safety sensor. The purpose of this is to streamline the wire connection step for a new device. Once you complete the first sensor, proceed to the second one in the same manner.


Connect the new wires with safety sensors:

Examine the colour of every single wire on the new sensor and compare it to the relevant control wires. Use the crimp wire nut to join the wires. Continue to attach the second safety sensor in the same manner as you did the first.

Insert the new sensors: 

First, insert the sensor into the bracket and tighten the nut to lock it. Once you are certain that the first one is in position, continue the same with the second.


Reconnect the electricity:

Confirm again whether the garage door sensors were placed properly. Once everything is in the right place, place them back into an electrical socket to start the electricity again.


Align the garage door sensors:

If something is obstructing the sensors, the garage door won’t close. The garage sensors must thus be aligned. Keep in mind that when the sensors are aligned, there should be a constant green light.


Installation test:

After completing the installation of the new garage door sensors, proceed to open the door. Afterward, place a box in the way of the door, between the sensors. This stops the beam that the sensors are transmitting. The door should not move as you attempt to close it. If the door still shuts, this means the logic board of the sensors has to be changed. After implementing the modifications, run the test again. If it still doesn’t work, you should contact someone with the necessary skills.


Congratulations! You just achieved a milestone. 



In the end, we tried to explain everything to you. Just apply the method to change the sensors. However, it’s not always easy to perform such technical acts for non-experts. Therefore, quickhomeexperts is always ready to help you out. Just dial our number to talk to our experts. We have a team of professionals for such services.

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