Your garage door's safety sensors are what keep it from closing on people, pets, or vehicles. Once they stop working correctly, most doors will refuse to close at all until the problem is resolved.
Every modern garage door opener relies on a pair of photo-eye sensors mounted low on the track to detect obstructions. Once one becomes dirty, knocked out of alignment, or physically damaged, the typical result is a door that won't close, or one that starts closing and then reverses without any clear reason.
More often than not, sensor trouble has a simple explanation. A bracket nudged out of place, a spiderweb across the lens, or afternoon sun glaring into one sensor can all mimic the symptoms of a true failure. Our technicians rule out these easy fixes before recommending any replacement parts.
If a sensor really has given out, whether the cause is a frayed wire, moisture damage, or an impact, we install a replacement built to work with your opener's exact wiring and signal type, since sensors aren't universally compatible across brands and model years.
Once the new sensors are in place, we don't just eyeball the alignment lights. We run a full close cycle with an object placed in the door's path to confirm the safety reversal actually engages the way it should.
This is a textbook symptom of a sensor problem, whether it's misalignment, a dirty lens, or an actual failure. Openers are designed to treat any break in the sensor beam as an obstruction and reverse immediately for safety.
Wiping down the lenses and nudging the brackets until both indicator lights stay solid instead of blinking is worth trying. If the problem sticks around after that, it's a good sign the sensors need a proper look.
Yes. Residential garage door openers are required to include entrapment protection, and photo-eye sensors are the most common way that's achieved. We never recommend bypassing or disabling this feature.
Reach out to ProGate Garage Door Service in Abingdon, MD and talk with a technician about getting your garage door sensor repair or replacement handled quickly.
Call 1 (833) 652-7571