Recently, when the dryer is done, the buzzer sounds and doesnt quit. If you set the timer to a drying cycle, and close the door, everything works ok until the timer moves to the off position, then the timer buzzer goes on and won't stop. If you set the timer to an off position and close the door, the timer buzzer goes on and will not stop until you move the timer to a drying cycle or open the door. Has anyone experienced this? If so, how can it be fixed.