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Understanding Garage Door Sensor Problems

Garage door sensors play an essential role in ensuring safety. By detecting obstructions, these sensors prevent accidents. But what happens when the very thing that’s meant to keep you safe starts malfunctioning? Let’s delve into common garage door sensor problems and how to address them.

What is a Garage Door Sensor?

Before diving into the issues, it’s crucial to understand what a garage door sensor is. In essence, a garage door sensor is an infrared beam that, when interrupted, prevents the garage door from closing. If something is in the path of the garage door, the sensor sends a signal to the opener, stopping the door from moving.

The Most Common Sensor Problems & Solutions

Many issues can arise with garage door sensors. Here’s a table detailing common problems and their respective solutions.

Problem Solution
Sensor light is not blinking Ensure there is power and check wiring.
Sensors are not aligned Adjust the sensors to make sure they face each other directly.
Blinking sensor light Remove any obstruction or clean the lens.
Door reverses before hitting the floor Check the sensor alignment or the track for obstructions.
Sensors have been damaged or knocked over Replace the damaged parts or realign the sensors.

Why Choose Us?

Tomys Garage Door is your go-to solution for all garage door-related problems. With a wealth of experience under our belt, we prioritize your safety and convenience. Our team of experts is always on standby, ready to tackle any challenge head-on. Check out our detailed post on sensor problems for a deeper understanding.

Our Service Areas

We are proud to serve the following areas:

  • Renton
  • Bellevue
  • Seattle
  • Tacoma
  • And many more!

Frequently Asked Questions

Why is my garage door opener not working?

Your garage door opener might not be functioning due to several reasons, such as dead batteries, misaligned sensors, or an expired lifespan. For detailed insights, explore our post on when it’s time to change your garage door opener.

Can I use my old tracks when installing a new garage door?

It’s possible but not always advisable. Using old tracks might not be compatible with new doors and can lead to complications. Read our complete guide for more information.

My garage door has a gap on one side. What should I do?

A gap on one side of the door may be caused by uneven tension, worn out rollers, or other issues. Our guidance on fixing a gap can be of great help in such scenarios.

How do I replace the battery in my garage door opener?

Replacing the battery is a simple process, but if you’re unsure about it, consider our step-by-step battery replacement guide.


Navigating garage door sensor problems can be challenging. Still, with the right knowledge and a trusted partner like Tomys Garage Door, you can ensure smooth functioning and safety. Whether you’re grappling with dented doors, wheels off track, or just need to understand spring knowledge, we’ve got you covered. If you face any garage door challenges, don’t hesitate. Contact us for expert assistance.

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