Hi, I have a quadrafire 1100 and the auger stops feeding as soon as the stove gets up to temp. I have replaced the #3 snap disc, themocoupler, and the exhaust blower fan(the fan bearings were making alot of noise). If i apply suction to the vacuum hose the auger turns back on. I cleaner out the vacuum port with my air compressor. I am all out of ideas. When i nplace my finger over the vacuum hole I do not feel suction(compared to a carb in a car). I got the stove recently so dont know much about it. I was looking in the burn pot compartment and noticed an opening on the left side that allows air into the burn pot from the area where the vacuum switch is located and was wondering if this should be sealed.