© 2021 United States Stove Company
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Display is Flashing “E4”
Possible Causes
Possible Remedies: (Unplug stove first when possible)
The air inlet, burnpot, interior
combustion air chambers, combustion
blower, or exhaust pipe are blocked with
ash or foreign material.
Follow all cleaning procedures in the maintenance section of
the owner’s manual.
The Proof of Fire (POF) thermodisc has
came unplugged
Check the (POF) thermodisc to see if the wires are connected
properly.
The Proof of Fire (POF) thermodisc has
malfunctioned.
Temporarily bypass the POF thermodisc by disconnecting the
two wires and connecting them with a short piece of wire. Then
plug the stove back up. If the stove comes on and works, you
need to replace the POF thermodisc. This is for testing only. DO
NOT LEAVE THE THERMODISC BYPASSED. Your blowers will
never shut off and if the fire went out the auger will continue
to feed pellets until the hopper is empty if you leave the POF
thermodisc bypassed.
The hopper is out of Pellets.
Refill the hopper.
The hopper safety switch has failed or
hopper is open.
When operating the unit, be sure the hopper lid is closed so
that the hopper safety switch will activate. Check the wires
leading from the hopper safety switch to the control panel and
auger motor for secure connections. Use a continuity tester to
test the hopper safety switch; replace if necessary.
The auger shaft is jammed.
Start by emptying the hopper. Then remove the auger motor
by removing the auger pin. Remove the auger shaft inspection
plate in the hopper so that you can see the auger shaft. Gently
lift the auger shaft straight up so that the end of the auger
shaft comes up out of the bottom auger bushing. Next, remove
the two nuts that hold the top auger biscuit in. Then rotate the
bottom end of the auger shaft up towards you until you can lift
the shaft out of the stove. After you have removed the shaft,
inspect it for bent flights, burrs, or broken welds. Remove any
foreign material that might have caused the jam. Also, check
the auger tube for signs of damage such as burrs, rough spots,
or grooves cut into the metal that could have caused a jam.
The auger motor has failed.
Remove the auger motor from the auger shaft and try to
run the unit. If the motor will turn the shaft is jammed on
something. If the motor will not turn, the motor is bad.
Display is Flashing “E5”
Possible Causes
Possible Remedies: (Unplug stove first when possible)
The stove automatically flashes "E5"
when turned on
The T-stat sensor has come unplugged form the control board.
Check to see if the sensor is unplugged. If the sensor is not
unplugged then the sensor is damaged or has a short. If the
sensor is damaged or has a short it will need to be replaced.
TROUBLESHOOTING GUIDE
