If this is a torsion spring system either a cable has come off the high taper of one of the drums or one of the drums has slipped on the torsion tube and needs to be reset by a professional.
Garage door not closing evenly.
When this happens you need to shift it back into position.
Do not attempt to do this yourself.
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.
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.
There are several things that can cause this.
Repairing your garage door springs can be a dangerous job due to the weight of the door.
Without the springs the door is very difficult to lift.
This can happen when the door has shifted to one side causing it to appear uneven.
Garage door springs are used to offset the weight of the door.
Keep the door open a few feet off the ground as this takes the pressure off the door springs.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
The most simple and common is door shift.
Depending on the brand.
If you suspect you need to adjust one or both of the extension.
The most likely cause of that is that the springs that help lift the door and prevent it from closing to fast need to be adjusted or replaced.
Some times you need to adjust the garage door.
If it is an extension spring system open the door and check to see if one of the cables has come off of one of the pulleys.
Adjusting garage door extension springs.
Put a ladder under the door to make sure it won t close accidentally while you re working on it.
If your door has a gap on one side or the other when it s closed the problem is most likely due to a break or other issue with one of the extension springs.
When garage doors won t close all of the way or they close unevenly spring adjustment may be called for.