Test the sensor eyes by connecting them to short wires directly at the motor unit.
Garage door closes to sensors and reverses.
The photo eyes send an infrared beam across the bottom of your garage door opening if that beam is broken the door will reverse.
It goes partway down reverses direction and goes back up again.
Clean and adjust the photoelectric eye which also reverses the garage door.
If the door closes and reverses it is traveling too far and you should decrease the travel.
While holding the sensors close together and facing each othe click the remote.
Photo eyes or safety sensors are mounted to the track on either side of the garage door about 6 inches up from the ground.
This is almost always the result of a dirty or obstructed safety feature.
Make sure the eye is aligned with the reflector at the opposite side or else the door won t close properly.
You push the button to close the garage door.
A garage door that keeps reversing when you attempt to close it with the opener might have a simple problem or a major issue that requires a service professional.
If the door doesn t close and the lights don t blink replace the safety sensors.