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© 2021 United States Stove Company
21
Display is Flashing “E4”
Possible Causes Possible Remedies: (Unplug stove rst 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 re
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. Rell 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 ights, 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.
TROUBLESHOOTING GUIDE
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