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TROUBLESHOOTING GUIDE
Error
Code
The high limit temperature sensor has
Err1
tripped.
Stove ran out of fuel during normal
Err2
operation.
The stove was unable to reach the Room
Err3
Fan On temperature within the start-up
time.
The power failed while the stove was hot,
Err4
and when power was restored, the fire
was out.
Err5
The Auger output fuse has blown.
Err6
The Ignitor output fuse has blown.
The Draft Fan (Exhaust Fan) output fuse
Err7
has blown.
Err8
The Room Fan output fuse has blown.
DISPLAY INDICATORS
Several situations or events are indicated in normal operation by blinking display indicators or segments
in the display:
Flashing On Indicator - This means that the stove is in the "Start Up" state waiting for the ignition
procedure to complete.
Flashing Off Indicator - This indicates that the stove is in the "Shut Down" state waiting for the off button,
or for a 15 minute period after the stove was turned off, or for the stove to cool down, or for the door to be
closed.
Flashing dash in Heat Range Display - This indicates that the stove is in the normal run mode and is
ramping from the current heat range setting to the target heat range setting. Once the ramp is complete,
the dash will stop flashing. For ramping from heat range 1 to 5, the default time is 12 minutes (with a 90
second ramp time).
Flashing Automatic Mode Indicator - This indicates that the stove is in normal operation and is running
in the automatic mode. However, either the draft fan or room fan setting is manually configured.
Flashing Draft Fan Setting Indicator - This indicates that the stove is in normal operation and that the
vacuum sensor detects a loss of pressure either because the door is open or because there is a negative
pressure in the room with respect to the exhaust.
Flashing Aux Indicator - This indicates that the ignitor is on during the lighting stage.
Quickly (changes twice per second) Flashing Heat Range Setting Indicator - This indicates that the
stove is in normal operation and that an over-temperature condition exists causing the fuel to stop.
Slowly (changes once per second) Flashing Heat Range Setting Indicator - This indicates that the
stove is in a cut back condition in an attempt to prevent an over-temperature shut down.
FACTORY DEFAULTS
To return the control to its original factory default settings, press and hold the AUX UP and AUX DOWN
buttons together for three seconds.
Error Description
21
Possible Causes
Inadequate ventilation.
Room fan failure.
Exhaust Blockage.
Electrical Open in wiring.
Hopper Empty.
Auger output failure or jam.
Flame of fuel quality caused fire to burn too
slowly or go out.
Electrical Open in wiring.
The high limit thermosdisc has tripped and will
need to be manually reset.
Flame or Fuel quality caused the fire to burn too
slowly or go out.
Auger output failure or jam Hopper empty on
start-up.
Electrical Open in wiring.
Power loss
Auger motor jammed or bad.
Ignitor shorted out or bad.
Draft Fan motor jammed or bad.
Room fan motor jammed or bad.
© 2022 United States Stove Company
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