Trying to figure out how this happened, stove is burning cleaner than it has in many years. Usually after a few hours the glass is black, have to clean it every couple of bags burned. Had to replace auger motor, went to a 110 degree snap switch instead of fire-eye, cleaned stove components/motors. Other than those things nothing different. Any ideas why it would be burning so clean? Not a problem just not used to good things happening with appliances. Stove is a 30 years old Whitfield Profile 30.