9
Auburn Operations & Maintenance Manual
Shutting The Stove Off (Refer to Figure 3)
1. Press the On/Off switch (2) once; the lights
will go off and the fire will go out in a few
minutes. The board essentially goes into “Safety
shutdown”.
2. As long as the Exhaust Temperature within
the stove remains above 110°F, the Room Air
Fan and the Combustion Exhaust Fan will
continue to run. Once the P.O.F. switch drops out
the Combustion Fan will run for another 10
minutes and finally the stove will shut down
completely.
3. NEVER unplug the stove to shut it off. Doing
so may cause a significant amount of smoke to
enter the room.
Diagnostic Features of the Control Board
The #2 LED and the #3 LED lights on the LED
Light bar as show in Figure 3 will flash to give a
diagnostic code to help in diagnosing problems
that may occur.
These conditions fall into 2 categories:
a. Heat related issues.
b. Vacuum related issues.
The Diagnostic Lights flash as follows:
1. The Proof of Fire switch. This switch
will sense the temperature of the Exhaust
rising during start up. If the Exhaust
temperature does not reach 110 degrees
F, or if during use the temperature drops
below 110 degrees F, the Stove will go
into “Internal Alarm” and the Auger
will quit feeding fuel. Once the stove
completes the safety shutdown, the #3
LED will start blinking. (See Figure 3 on
Page 7 and point 5 on page 22)
2. The High Limit switch. This sensor will
sense if the unit reaches temperatures that
are too high for normal operation. If this
happens the Auger will quit feeding and
the #2 and #3 LED lights will flash
simultaneously. (See Figure 3 on Page 7
and point 6 on page 22)
3. The Vacuum Switch - For the stove to
operate, the Firebox needs to be sealed.
During the first 30 seconds after the stove
has been turned on the Control Board will
check if the switch senses negative pressure
(Vacuum) in the Firebox of the stove. If
there is no negative pressure, the stove will
shut down and the #2 LED will start
blinking. (See Figure 3 on Page 7 and point
4 on page 21).
“Power Reset”. If the board becomes unresponsive
you must unplug the stove, wait 10 seconds and plug
the stove back in to reset the board.
“Internal Alarm”. When the control board becomes
unresponsive, the control board is in Internal Alarm.
The control board has sensed one of the Safety
sensors. This may cause the stove to go out. In some
cases, after waiting approximately 45 seconds the
stove will start responding to the control board
again. Many times, the cause of this is a change in
the vacuum inside the stove. This may be caused by
excessive wind, opening the Firebox door or
opening the Ash Pan door. The control board will
monitor the vacuum switch and resume normal
operation if the vacuum returns to normal.
Safety Features
1. ”High Limit” switch”, an overheat safety
switch will shut off the fuel feed if the Stove
reaches temperatures above normal
operating temperature. This is a “Normally
Closed” switch and is part of the Fan limit
control. If the High limit switch trips several
times, the problem in the Stove must be
diagnosed before the Stove is put back in
service, (Defective Room Fan, dirty Room
Fan, dirty Return Air Filter, defective Fan
Limit Control or possibly a bad Control
Board)
2. Proof of Fire switch also called the P.O.F.
This senses the temperature rise in the
exhaust system. The switch is “Normally
Open” and closes the circuit at 110 degrees.
The Stove will shut down if temperatures
above 110 degrees F are not sensed during
start up or if the temperature drops below
110 degrees during normal operation.
