They both have lights and both lights should be on.
Garage door not closing fully on one side.
Sometimes the fix can be as simple as replacing the batteries in the opener and.
If the door is all the way up there is more tension in the cable on the side with the problem.
Adjust the springs on both sides of the door the same way.
Something blocking the door.
Garage door opener malfunction or door has shifted.
If there s something blocking the door from closing all the way a full close will be impossible.
Maybe the spring is just holding that side from closing all the way.
Garage floor may have cracked or shifted 2.
Garage doors sometimes seem to have a mind of their own often deciding when and how far they want to open or close.
If one side of the door is not in line with the other the door won t run smoothly in its tracks and when closed one side of the door won t close completely leaving an open gap.
Maybe someone bumped into it recently.
Garage door seal may be damaged 4.
The reasons your garage door has a gap in it could be.
These 7 reasons are to blame one or more of these reasons is likely responsible for your garage door closing partially but not all the way.
Retest the door balance as you did in step 1.
It is possible that the vertical track down the side has gone out of alignment and shifted due to a slightly loose lag screw.
Is your garage door not closing.
Garage door sensors may not be aligned correctly 3.
Or it could just be that the hardware has become loose over time.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
Push the door back to adjust the door and get the center aligned again.
The door runs are housed in a garage door track one on each side of the garage door.
Check that it is straight.
So i m thinking it may just be a matter of loosening the tension a bit on that spring.
If you ve had your door for a while or are in and out of it a lot it can easily end up out of alignment.
Though this problem should be obvious it shouldn t be overlooked.
First you need to see what has caused this to happen.
The extension springs are evenly matched and installed to keep the garage door properly aligned so that it runs smoothly throughout the entire length of the track and closes evenly.
Side mounted extension springs are installed above the horizontal roller tracks on both sides of the door.
By pushing the door back into position you should have made the vertical track straighten.