When there is a breakdown of your garage door at home, it is never a pleasant event. You may have heard a loud pop noise while attempting to operate the garage door. This noise may sound like a gun shot, but after looking around your garage, you will soon find out something in the system have been broken. If you try to operate the garage door after you've heard the pop sound, you will notice the garage door won't respond as it should. If you take a closer look above the door, you will notice tha...