How to Troubleshoot Misaligned Garage Door Safety Sensors
Photo-eye sensors are the most common reason a door refuses to close. Most cases are simple; a few are not.
Read the lights
One sensor shows a steady sending light, the other a steady receiving light. A blinking or dark light means the beam is broken or the pair is out of alignment.
Clean and realign
Wipe both lenses with a soft dry cloth, then loosen the wing nut and tilt each bracket until both lights are steady. Retighten carefully.
Check sun, wiring, and mounting
Direct low sunlight can blind a receiver. Staples pinching the wire, corroded splices, and loose brackets all cause intermittent faults.
When it isn't the sensors
If the lights are perfect and the door still reverses, the opener's close-force or travel limit is set wrong. That adjustment should be done by a technician.
Need help with your garage door?
MG Garage Door Service serves Lincolnwood and surrounding areas with same-day and 24/7 emergency service.
Call (224) 252-5397