Unusual problem. I've had this pellet stove for 15 years now. Over the years, I have replaced most motors, fans, etc. The upper auger does not turn while the stove is in startup mode if the pof switch is jumped. if it is not jumped, the upper auger turns, but the fan will not come on if the pof switch is not jumped. Vacuum switch is out of the loop right now, so i know that's not the problem. Upper Auger will spin if on button is pushed while pof switch is jumped. Control Board? If so, time for a new stove, I guess.