This is almost always the result of a.
Garage door will not go all the way down.
Though this problem should be obvious it shouldn t be overlooked.
You push the button to close the garage door.
Something mechanical has most likely bound up.
If your garage door is not balanced right it won t go up or down all the way.
If you operate your door manually and the door will not go all the way down don t force it.
If your garage door hits it bounces up and starts to open again your garage door is working well.
If there s something blocking the door from closing all the way a full close will be impossible.
Something blocking the door.
How to fix a garage door that won t go all the way down.
However if your garage door doesn t bounce back up then you know you have a problem.
You should now be able to move the door up and down by hand.
From here lift the garage door by hand about 3 feet above the ground and then release the door and see were it lands.
It goes partway down reverses direction and goes back up again.
To check the balance pull the emergency release cord or chain to disconnect the door.
In almost every case not all both of the lights should be solid if one or both is blinking simply move one of them left or right with your hand until the lights become solid again.
To fix this issue increase the down limit one quarter turn.
How to fix a garage door that keeps reversing.