If an object person or animal blocks the beam the closing door reverses direction.
Garage door reverses after closing.
Replace the garage door opener safety sensor the safety sensor has a pair photoelectric eyes at the base of the rails one eye emits an infrared beam and the other receives it.
Some older garage door openers do not have nicely labeled adjustment screws for force and travel limits.
If the door reverses part way down and you are sure there is no obstruction or binding increase the closing force a small amount and try it again.
One question some homeowners ask is why their garage door closes then immediately reverses to the open position.
You push the button to close the garage door.
This is almost always the result of a dirty or obstructed safety feature.
Your garage door is likely the largest opening on your home s exterior so it s important to have the peace of mind that it is functioning properly.
It goes partway down reverses direction and goes back up again.
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.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Test the sensor eyes by connecting them to short wires directly at the motor unit.