Hey everybody, I just bought my first kiln. It's a used Paragon A81B, 240v manual kiln with a kiln sitter, it has 4 switch settings: off, low, medium and high. 3 of the 4 elements will come on but only when both knobs are switched to the high position. otherwise nothing happens at all. I ran my kiln for nearly 20 hours but never it got up to cone 06. I've checked all the elements and there seems to be connectivity, so I figure my problem is the switches. Does this sound right to anybody else?