Garage doors with faulty springs should not be used. Because the garage door opener lacks the assistance springs offer in raising and lowering the door, doors in this state might be too unpredictable and difficult to lift. The springs serve as counterweights to the door, keeping it steady and controlled when the user wants to open or close it. The door becomes useless and dangerous without the spring to hold its weight. Call in a technician if this ever happens and do not attempt to fix it on your own.