Safety eye sensors are a very important part of your smoothly operating garage door. Eye sensors have been required on all new systems since 1993 to prevent accidents and injuries by detecting obstructions and reversing the door direction.
Eye sensors are comprised of two parts, one transmitting sensor that sends an infrared signal, and another sensor that receives it. If anything blocks the signal, the system won’t function. The signal has to remain uninterrupted while the door is in operation and moving downward.