Safety sensors stop your door from closing on a person, pet, or vehicle. When they malfunction, the door often refuses to close at all.
The photo eye sensors mounted near the bottom of your garage door track are a required safety feature on modern openers, and when they are misaligned, dirty, or damaged, the most common result is a door that will not close at all, or one that closes and then immediately reverses for no obvious reason.
Sensor problems are often simpler than they first appear. A slightly bumped sensor bracket, a cobweb across the lens, or direct sunlight hitting one sensor at a certain time of day can all cause the same symptom as a genuinely failed sensor. We check these simple causes first before assuming a part needs to be replaced.
When a sensor has actually failed, whether from a damaged wire, water intrusion, or physical impact, we replace it with a unit that matches your opener's wiring and communication protocol, since sensors are not always interchangeable across different opener brands and generations.
After any sensor work, we test the safety reversal function directly by placing an object in the door's path during a close cycle, rather than assuming alignment alone means the safety feature is working correctly.
This is a classic sign of a sensor issue, whether from misalignment, a dirty lens, or a genuine sensor failure. The opener is designed to treat any sensor interruption as an obstruction and reverse for safety.
Wiping the lenses and gently adjusting the brackets so both sensor lights are solid rather than blinking is reasonable to try, but if the issue continues it likely needs a proper inspection.
Yes, modern residential openers are required to include an entrapment protection feature, most commonly photo eye sensors, and we do not recommend operating a door with this safety feature disabled.
Call Gulliver Garage Door Services in Bucyrus, KS and speak with a technician about your garage door sensor repair & replacement needs.
Call 1 (833) 652-7571