The limit adjusters control how far the garage door goes up and how far it goes down.
Garage door does not go down all the way.
Carefully inspect the track and the rollers to see if something is stuck.
A twisted or slightly bent track may be the culprit.
Though this problem should be obvious it shouldn t be overlooked.
Depending on the brand.
Also check the cables.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
Start by making sure your garage door is open all the way.
On the main console the box that hangs from the ceiling you ll see a few different nobs and or buttons.
Something mechanical has most likely bound up.
Adjust in small increments a half turn or less.
Something blocking the door.
If there s something blocking the door from closing all the way a full close will be impossible.
One or more of these reasons is likely responsible for your garage door closing partially but not all the way.
How to adjust a garage door opener s travel setting when the garage door won t close all the way adjusting the travel setting on a garage door opener the craftsman garage door opener shown here has two set screws that control door travel.
Garage doors are heavy and to prevent injuries manufacturers of automatic openers include safety sensors to stop the door when someone is in the way.
When the door won t go down automatically.
Locate the limit adjusters.