If there s something blocking the door from closing all the way a full close will be impossible.
Garage door does not go down all the way.
Something mechanical has most likely bound up.
Start by making sure your garage door is open all the way.
First check the sensor lights.
Adjust in small increments a half turn or less.
The limit adjusters control how far the garage door goes up and how far it goes down.
Though this problem should be obvious it shouldn t be overlooked.
Also check the cables.
Carefully inspect the track and the rollers to see if something is stuck.
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.
Something blocking the door.
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.
Locate the limit adjusters.
One or more of these reasons is likely responsible for your garage door closing partially but not all the way.
A twisted or slightly bent track may be the culprit.
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.
When the door won t go down automatically.
You should also find buttons or nobs that will adjust the force too.