Troubleshooting guide

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The Room Air Fan, the Combustion Fan and the Versa Grate Motor continue to run until
the Proof of Fire Switch measures temperatures below 90 degrees in the exhaust system
and the P.O.F. switch drops out. At this time the #3 Diagnostic LED light will start
blinking with a First Generation Digital Control Board and the #2 and #3 LED light
flashes with a Second Generation Control Board. (First Generation Control Boards do
not have the Thermostat Slide Switch on the front of the board .All other generations
have the slide switch.)
Remember: If the switch trips due to excessive temperatures, it must be reset to
allow the auger to run. If auger does not run for any reason, check this first.
Proof of Fire Switch
Proof of Fire Switch - 110°F Disc, Normally Open - To troubleshoot the High
Limit switch refer to the section covering the diagnostic features of the Control Board
covering the #3 LED diagnostic light.
The Proof of Fire switch will sense if the exhaust temperatures rise above 110 ° F. This
indicates a successful lighting of the stove. Once the Proof of Fire switch closes, the
Convection Fan turns on and blows warm air into the room and the control board
switches from the” Start-up” program to the “Normal Operation” Program.
If the temperature drops in the Exhaust system and the Proof of Fire switch opens,
without the stove first being shut off, once the fans shut off the #3 LED light will start
blinking.
Hopper Lid Switch
Hopper lid switch – This switch is wired to the Normally Open connectors of the
switch. Closing the hopper lid will close the circuit to the auger motor and feed pellets to
the Burn Pot.
Mechanical System
Door Assembly
Location: The door assembly is in the front center of the stove.
The assembly consists of the cast iron door on the Prescott EXL & EXP
models, or a metal frame door on the Hastings models or a Bay metal
frame door, the window, the door latch and gasket.
Purpose: The door provides access to the firebox and holds the window glass. The
gaskets provide airtight seals into the firebox. The latch secures the door.
It must remain closed during operation of the stove. The gaskets must
make an airtight seal to create Negative Pressure for the stove to operate
properly.