Energy from the spring turns the drum which either winds or unwinds the cable thereby lifting or lowering the door.
Garage door opening crooked.
Without proper adjustment however the unit may run along the tracks unevenly.
By pushing the door back into position you should have made the vertical track straighten.
Push the door back to adjust the door and get the center aligned again.
Any of these situations indicate that one or both garage door tracks need to be aligned.
There may be a large gap of space between the stop molding and the door.
If one of these cables is broken power from the spring can t get to the door and the door hangs crooked.
One of the most likely culprits when you have a crooked garage door is a broken torsion spring.
It is possible that the vertical track down the side has gone out of alignment and shifted due to a slightly loose lag screw.
Your garage door has two overhead springs some doors have the springs on the side called extension springs that are responsible for opening and closing the door.
The door might be hard to open and close due to it binding.
Here are three possibilities.
Pulling the door up and down is a garage door opener.
Warping of the door will also cause it to run crooked and stick in the tracks.
This will cause the unit to stick.
Safety sensors are the electronic eyes near the base of the door track on both sides.
They need to have a clear line of sight between them in order for the door to work properly.
First you should check the safety sensors.
A crooked or off balanced door.
If the opener is adjusted properly the garage door will move up and down in an even motion.
Garage doors have a cable on each side that s wound around a drum with one end attached to the door itself.