How to Fix Garage Door Sensors That Are Not Working

May 13, 2024

Safety features prevent the door from closing on anything or anyone in its path. But fear not, Tacoma homeowners! Before you call in a professional for Garage Door Sensor Repair and Installation Tacoma, there are a few simple troubleshooting steps you can try yourself.

Common Causes of Faulty Garage Door Sensors

Several issues can cause your garage door sensors to malfunction. Here are some of the most common:

  • Misalignment: Over time, vibrations or accidental bumps can nudge the sensors out of alignment. This disrupts the infrared beam they use to communicate, preventing the door from closing.
  • Dirty Lenses: Dust, cobwebs, or even a build-up of dead bugs can block the infrared beam, causing the sensors to malfunction.
  • Loose Wiring: The wires connecting the sensors to the opener might become loose or disconnected, interrupting the signal.
  • Low Battery (if applicable): Some sensors have batteries that need to be replaced periodically.
  • Damaged Sensors: In rare cases, the sensors themselves might be damaged and require replacement.

Troubleshooting Your Garage Door Sensors

Before diving into repairs, here are some quick checks you can perform:

  1. Visual Inspection: Look for any obstructions blocking the beam between the sensors. Check for misalignment; the lenses should be facing each other directly. Wipe the lenses with a clean, dry cloth to remove any dirt or debris.
  2. Test the Beam: Most sensors have a small LED light that illuminates when the beam is clear. Have a helper hold a piece of cardboard near one sensor to block the beam. The LED on the other sensor should turn off. If it doesn’t, there might be a misalignment or a faulty sensor.

Simple Garage Door Sensor Repair

If the problem is misalignment, you can usually fix it yourself. Most sensors have slots or screws that allow for slight adjustments. Loosen the adjustment mechanism and carefully nudge the sensor until the LED lights on both sensors illuminate consistently.

When to Call a Professional

If you’ve tried the troubleshooting steps above and your garage door sensors are still not working, it’s time to call in a professional for [Garage Door Sensor Repair and Installation Tacoma]. Here’s why:

  • Electrical Issues: Diagnosing and repairing wiring issues is best left to a qualified electrician.
  • Sensor Replacement: Replacing damaged sensors requires specific knowledge and tools. A professional can ensure the new sensors are compatible with your system and installed correctly.
  • Safety Concerns: Garage doors are heavy and can cause serious injury if not functioning properly. A professional can ensure your door is operating safely.

Finding a Reputable Garage Door Repair Company in Tacoma

When searching for a company for [Garage Door Sensor Repair and Installation Tacoma], look for one with a good reputation and experience servicing your specific garage door brand. Here are some tips:

  • Get quotes from multiple companies.
  • Ask about their experience with sensor repair and installation.
  • Check online reviews and recommendations.
  • Ensure they are licensed and insured.

By following these tips, you can find a qualified professional to fix your garage door sensors quickly and efficiently.


Keeping your garage door sensors in good working order is crucial for the safety and smooth operation of your automatic door. With a little troubleshooting and some basic maintenance, you might be able to fix the issue yourself. However, for more complex repairs or when safety is a concern, don’t hesitate to call in a professional for (Garage Door Sensor Repair and Installation Tacoma).

Have you ever had to fix your garage door sensors? Share your experience in the comments below!

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