If your garage door opens about a foot, you might have a broken spring.
Think about the garage door spring as the muscle.
Most garage doors are made of heavy steel not aluminum,
They need a counterbalance to lift all that weight.
Your garage door opener (motor) only guides it to open and close,
it has minimal push and pull.
If you see a broken spring like the picture
or your garage door goes up about a foot.
Call a professional.
If you are in the Tucson Metro Area give us a call
We'll be happy to help.