How to Fix A Broken Garage Door Sensor

How to Fix A Broken Garage Door Sensor

Garage door sensors are pivotal in ensuring the safety and functionality of your garage door. When these sensors fail, your garage door might refuse to close or behave erratically. Thankfully, troubleshooting and fixing a broken garage door sensor can be straightforward with a bit of know-how. Let’s discuss about How to Fix A Broken Garage Door Sensor.

Identifying the Issue

  1. Check for Obstructions: Before diving into technical fixes, ensure there’s nothing blocking the sensor’s path. Even a tiny piece of debris can interfere with the sensor’s operation.
  2. Sensor Lights: Most sensors have indicator lights. If one is blinking or off, there might be an alignment issue.
  3. Physical Damage: Examine the sensors for visible damage. Sometimes, a sensor might be bumped or kicked, leading it to misalign or even break.
  4. Electrical Issues: Check the sensor’s wiring. Ensure they’re correctly connected and not frayed or damaged.

Troubleshooting and Fixes

Problem Potential Solution
Misalignment Adjust the sensors until both indicator lights are steadily on.
Dirt or Debris Clean the sensors with a soft cloth and mild cleaner.
Wiring Issues Reconnect loose wires or replace damaged ones. For replacements, it’s advisable to contact a professional.
Sensor Damage If the sensor is damaged beyond repair, replace it. Refer to the manufacturer’s guidelines or check this guide for more information.

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Frequently Asked Questions

What is the lifespan of a garage door sensor?

Typically, garage door sensors last between 7-10 years. However, their lifespan can vary based on usage and maintenance. Regular check-ups and cleanings can extend their functionality. Learn more about garage door lifespans here.

Can I replace the garage door sensor myself?

Yes, it’s possible to replace the sensor yourself. However, for optimal safety and functionality, it’s recommended to consult a professional or refer to a DIY guide.

Why is my garage door reversing when I try to close it?

If your garage door reverses when trying to close, the sensors might detect an obstruction or misalignment. Ensure there’s nothing in the sensor’s path and check the alignment of both sensors.

Can weather affect my garage door sensors?

Yes, extreme weather conditions can affect the performance of your sensors. For instance, direct sunlight might cause false readings. Furthermore, cold weather can sometimes interfere with the sensor’s operations. Understand the impact of Calgary’s weather on garage doors for more insights.


A functional garage door sensor ensures the safety and efficiency of your garage door operations. When issues arise, timely troubleshooting can save you from bigger problems down the line. Whether you’re facing issues with a sensor or any other garage door component, don’t hesitate. Contact us today, and let our team guide you to the best solutions. If you’re ever in doubt about garage door problems, remember to consult our comprehensive blog for guidance and expert tips.

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David Martin

David Martin

Servicing garage doors for over a decade has thought me a thing or two about garage doors. In this blog I will try to share with you all I've learned over the years. I hope you find these tips helpful for a DIY fix before paying for a technician. If you still need help, don't hesitate to give us a call.

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