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How to Fix a Garage Door Sensor: Troubleshooting Blinking Lights & Alignment [2026]
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How to Fix a Garage Door Sensor: Troubleshooting Blinking Lights & Alignment [2026]
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About this listen
Is your garage door refusing to close? In this episode of TORQUE & TAPE, we step into the garage to tackle one of the most common home maintenance headaches: faulty garage door safety sensors. When your garage door opener lights start flashing and the door reverses for no apparent reason, you don't always need a professional—you just need a little bit of patience and a clean microfiber cloth.
We walk through the professional "mentor" approach to diagnosing and repairing photo-eye sensors. From the simple "neighbor's trick" of cleaning the lenses to advanced troubleshooting for misaligned brackets and frayed 22-gauge bell wire, this guide covers everything a DIY homeowner needs to get their door gliding smoothly again.
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