If your garage door hits it bounces up and starts to open again your garage door is working well.
Garage door will not go all the way down.
Something mechanical has most likely bound up.
This is almost always the result of a.
To check the balance pull the emergency release cord or chain to disconnect the door.
To fix this issue increase the down limit one quarter turn.
Though this problem should be obvious it shouldn t be overlooked.
It goes partway down reverses direction and goes back up again.
If your garage door is not balanced right it won t go up or down all the way.
If there s something blocking the door from closing all the way a full close will be impossible.
Something blocking 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.
Garage doors are heavy and to prevent injuries manufacturers of automatic openers include safety sensors to stop the door when someone is.
You should now be able to move the door up and down by hand.
How to fix a garage door that won t go all the way down.
From here lift the garage door by hand about 3 feet above the ground and then release the door and see were it lands.
You push the button to close the garage door.
How to fix a garage door that keeps reversing.
However if your garage door doesn t bounce back up then you know you have a problem.