I really need some help with my dryer... the heating coil will stay on at all times except in the off position and in the air dry cycle. Also when the timer counts down and buzzes, its not totally in the off position and the heating coil gets super hot. (this is how I realized there was a problem). If I open the door and turn the knob to the timed dry or auto dry, the coil will heat up. This is really scary, I hope you can help.