I received the 140 degree snap disk that everyone in the pellet stove forums says is likely the problem. I changed it out last evening and it ran non-stop all evening. It's amazing that a $20.00 item can cause so much problems. After I get the OWB fired up for the season I'm going to tear into this thing and perform a thorough cleaning. Because it was very clogged with ash dust, I suspect that when I get into it I'll find many more surprises waiting for me. So far I know the auger bearing will need to be replaced and perhaps I'll need to replace the auger itself. Heck, even if I have to put a few hundred bucks in it, that's a cheap price to pay for a decent heating unit. Roger