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© 2021 United States Stove Company
17
CAUTION: WHEN PERFORMING ANY INTERNAL ELECTRICAL MAINTENANCE
• MOVING PARTS INSIDE OF THE CABINET MAY CAUSE INJURY. DO NOT OPERATE UNIT WITH PANELS
REMOVED OR OPEN.
• HOT PARTS. DO NOT OPERATE THE UNIT WITH PANEL OPEN.
• RISK OF ELECTRIC SHOCK. DISCONNECT POWER BEFORE SERVICING UNIT.
• IN THE EVENT OF COMPONENT FAILURE, REPLACE WITH THE ORIGINAL FACTORY EQUIPMENT.
Error Code Error Description Possible Causes
Err1
The high limit temperature sensor has
tripped.
Inadequate ventilation.
Room fan failure.
Exhaust Blockage.
Electrical Open in the over temperature switch or
wiring.
Err2 The low limit temperature sensor has tripped.
Hopper Empty.
Auger output failure or jam.
Poor flame or fuel quality caused fire to burn too
slowly or go out.
Electrical open in low temperature switch or wiring.
Fire was not well established before the PCB’s
programmed time limit expired.
Err3
The heater was unable to reach the Room Fan
On temperature within the startup time.
Poor flame or fuel quality caused fire to burn too
slowly or go out.
Auger output failure or jam Hopper empty on startup.
Err4
The power failed while the heater was hot,
and when power was restored, the fire was
out.
Electrical Open in low temperature switch or wiring.
Power loss
Err5 The Auger output fuse has blown. Auger motor jammed or bad.
Err6 The Agitator output fuse has blown. Agitator motor jammed or bad.
Err7
The Draft Fan (Exhaust Fan) output fuse has
blown.
Draft Fan motor jammed or bad.
Err8 The Room Fan output fuse has blown.
Room fan motor jammed or bad.
Err9 Zero Crossing Input failed AC supply frequency out of range.
Err10 The Igniter output fuse has blown Igniter output has shorted/blown or igniter overload.
ERROR CODES & DISPLAY INDICATORS
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