Does your garage door start to close, only to reverse instantly and flash its lights? This frustrating issue is rarely a broken motor. Instead, it is usually
a problem with your garage door safety sensors. Also known as photo-eyes, these infrared safety beams are located an inch or two above the ground
on both sides of your garage door tracks. They are designed to prevent the heavy door from crushing objects, pets, or children.
When you need immediate garage door troubleshooting, the first step is checking the sensor alignment. The indicator lights on both the sending and
receiving sensors should be glowing steadily. If one light is blinking or completely dark, your sensors are misaligned. Gently adjust the brackets by
hand until both lights stay solid.
Other common culprits include dirty lenses, loose wiring, or sunlight interference. Wipe the lenses clean with a soft microfiber cloth and check the
low-voltage wires for any fraying. If your garage door still won’t close after these steps, you may need a professional garage door repair service to
replace the sensors or fix a deeper wiring defect. Keeping these sensors clean and aligned ensures your automatic garage door remains safe,
operational, and reliable