If it was opening too quickly move it to the next lower hole.
Garage door not closing fully on one side.
So i m thinking it may just be a matter of loosening the tension a bit on that spring.
Something blocking the door.
If the door is all the way up there is more tension in the cable on the side with the problem.
Retest the door balance as you did in step 1.
There is one on each side of the door.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
Side mounted extension springs are installed above the horizontal roller tracks on both sides of the door.
They both have lights and both lights should be on.
Garage door sensors may not be aligned correctly 3.
Maybe the spring is just holding that side from closing all the way.
Push the door back to adjust the door and get the center aligned again.
If the door goes up but you can t make it go down you probably need to adjust the sensors.
Sometimes the fix can be as simple as replacing the batteries in the opener and.
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.
Check that it is straight.
By pushing the door back into position you should have made the vertical track straighten.
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.
Or it could just be that the hardware has become loose over time.
It is possible that the vertical track down the side has gone out of alignment and shifted due to a slightly loose lag screw.
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.
The door runs are housed in a garage door track one on each side of the garage door.
Garage doors sometimes seem to have a mind of their own often deciding when and how far they want to open or close.
Garage door seal may be damaged 4.
The reasons your garage door has a gap in it could be.
Garage floor may have cracked or shifted 2.
Is your garage door not closing.
Adjust the springs on both sides of the door the same way.
Maybe someone bumped into it recently.