Move the limit switch to try and solve this issue.
Manual garage door won t stay all the way up.
Hold the garage door and remove the vise grips from the track after the spring tension has been adjusted.
Slowly close your door about halfway and release it.
Release your hold on the door and see if it stays up all the way.
Ideally the door should slowly float up from this point.
If your garage door is not balanced right it won t go up or down all the way.
You should now be able to move the door up and down by hand.
The limit adjusters control how far the garage door goes up and how far it goes down.
To check the balance pull the emergency release cord or chain to disconnect the door.
Locate the limit adjusters.
On the main console the box that hangs from the ceiling you ll see a few different nobs and or buttons.
You should also find buttons or nobs that will adjust the force too.
As the garage door motor lifts the door it pushes against the limit switch in blue in the diagram causing the motor to cut out at the correct height.