Most likely one of the garage door cables has come off of the cable drum. Be careful, the garage door cables may still be under the spring’s tension. The garage door cable(s) should not be touched without the proper knowledge and tools to make the repair. Be careful not to force the garage door closed or open, it may cause further damage to the garage door tracks and may also cause the garage door to fall to the floor. In most cases you are better off to leave the broken garage door in whatever position you found it until a licensed garage door service technician can properly repair it.
Posted in: Garage Door Cables