Having a functioning garage door is essential for any homeowner. When the garage door sensor is faulty, it can cause inconvenience, and addressing it promptly is crucial. Here’s a detailed guide on how to fix a broken garage door sensor effectively.

Identifying the Problem

Before diving into repairs, identifying the problem is essential. Usually, if the garage door sensor is malfunctioning, the door will not close properly, or the lights will blink.

Steps to Identify the Problem:

  1. Observe the Lights: Check if the lights on the sensor are blinking or not.
  2. Check the Power Supply: Ensure that the sensor is receiving power.
  3. Look for Obstructions: Ensure there’s nothing blocking the sensor’s beam.

Troubleshooting Garage Door Sensors

Step-by-step Troubleshooting Guide:

  1. Clean the Sensor Lens: Dust and dirt can block the sensor beam. Clean the lens gently with a soft cloth.
  2. Align the Sensors: Misaligned sensors can cause malfunctioning. Adjust them until the lights stop blinking.
  3. Inspect the Wiring: Damaged wiring can interrupt the sensor’s operation. Check for any visible damages and repair them.
  4. Replace the Sensor: If cleaning, aligning, and repairing don’t work, consider replacing the sensor.

Detailed Solution Table

Steps Procedure Additional Tools Notes
1. Clean the Lens Soft cloth Avoid abrasive materials
2. Align Sensors Screwdriver Ensure they are facing each other directly
3. Check Wiring Wire Stripper, Electrical Tape Turn off power before handling wires
4. Replace Sensor New Sensor, Screwdriver Follow manufacturer’s instructions

Why Choose Us

At Vancouver Overhead Doors, we pride ourselves on delivering top-quality garage door repairs and services. We specialize in all sorts of repairs including 24-hour emergency repairs and broken torsion spring repairs.

Our Services Areas

We extend our exceptional services in various areas including:

Frequently Asked Questions

What are the signs of a faulty garage door sensor?

Symptoms include blinking lights on the sensor, the door not closing properly, or the garage door reversing immediately after hitting the floor.

How often should garage door sensors be replaced?

Typically, garage door sensors have a long life, but they should be replaced if they are malfunctioning and troubleshooting doesn’t resolve the issue.

Can I bypass my garage door sensor?

Bypassing the garage door sensor is not recommended as it is a safety feature designed to protect against accidents and injuries.

Is it safe to repair a garage door sensor on my own?

Yes, basic troubleshooting and cleaning are safe to be done by homeowners. However, for more complicated issues, it’s best to seek professional help.


A faulty garage door sensor can cause significant inconvenience. Knowing how to troubleshoot and when to seek professional garage door repair can save you from potential accidents and further damage. From aligning sensors to proper cleaning, following the above steps can ensure smooth operation. For more advanced issues, seeking professional assistance is advisable.

For top-notch garage door repairs, replacements, and installations, contact us at Vancouver Overhead Doors. Our team of experts is committed to providing quick and efficient services in Vancouver and its surrounding areas. We specialize in repairing broken garage door rollers, garage door off-track repairs, and more. Secure your garage and safeguard your home by choosing us for your garage door needs.

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