It's the weekend and my dealer is closed til Monday! Have been working alone to DIY my conversion from cordwood hot air to hot water and today was to be the first fire for my PB 105, but, for some reason I can't figure, it won't start. First, when powered up and according to the manual, the control board was to start the combustion fan on high, auger, and overheat circuit, and then all status LEDs were to go off except for the combustion fan's LED and the fan, which was to change speed to low after a minute on high. This was when the feed adjuster knob was turned to TEST. Nothing happened except the status LED was blinking in 3s indicating that the ESP probe has gone out of range. Checking with the dealer suggested I check for loose or broken wiring on the control board. Sure nuf, one of the leads from the ESP sensor was broken at the connector, Got a new connector and wires, wired it up and powered up, still nothing! That's where I'm at for the rest of the weekend. All I got was that the power, status, and overheat LEDs came on and then, after about a minute, the overheat LED went off. No auger movement and no combustion fan. I know a lot of you have Harman stoves, furnaces, and boilers out there. Maybe you could help me discover my problems with this one before the weekend ends so I won't be as discouraged.