If you garage door is lowering then reversing.
Garage door reverses before closing.
You push the button to close the garage door.
The photo eyes send an infrared beam across the bottom of your garage door opening if that beam is broken the door will reverse.
This is almost always the result of a.
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.
It goes partway down reverses direction and goes back up again.
Garage door reversing before closing.
How to fix a garage door that keeps reversing.
This is a safety feature that has been added to garage door openers to help prevent the door from closing on a car pet or even a child.
Garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet.