A twisted or slightly bent track may be the culprit.
Garage door won t go down all the way.
If the door goes up but you can t make it go down you probably need to adjust the sensors.
Something blocking the door.
Force your garage door closed.
Carefully inspect the track and the rollers to see if something is stuck.
You just need to adjust the travel setting on your door opener.
Something mechanical has most likely bound up.
Also check the cables.
Though this problem should be obvious it shouldn t be overlooked.
How to fix a garage door that won t go all the way down safety sensors.
Does your garage door keep coming back up after it hits the floor.
If you ve tried everything listed above and your garage door still won t go down you.
If you re in the habit of leaving the garage door open a variety of things including.
Get it working with these easy tips problems with the sensors.
Garage door not closing all the way.
For those who are unfamiliar with how garage door sensors work there are two sensors each.
7 reasons for your garage door not closing all the way 1.