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