I bought a used 5510 and when I got it home I found the circuit board was no good.. thank you to the guy who ripped me off. I replaced that and fired it up only to find the pot over flowing. I tried turning the draft fan way up and the feed way down but that turned into a full burn on level 1 but it'd run out of fuel, a kind of okay burn on level two but no heat out put and anything over two will fill the burn pot! I have the feed down to 1.00 lbs/hour! Please help!!