© 2021 United States Stove Company
17
TROUBLE SHOOTING GUIDE
Airflow
switch
wire
connections are bad.
Check the connectors that attach the gray wires to the air switch.
Combustion blower failure.
With the stove on, check to see if the combustion blower is running. If it is
not, you will need to check for power going to the combustion blower. It
should be a full current. If there is power, the blower is bad. If there is not,
see #7.
Control board not sending
power to combustion
blower.
If there is no current going to the combustion blower, check all wire
connections. If all wires are properly connected, you have a bad control
board.
Control board not sending
power to air switch.
There should be a 5-volt current (approximately) going to the air switch
after the stove has been on for 30 seconds.
Air switch has failed.
To test the air switch, you will need to disconnect the air hose from the
body of the stove. With the other end still attached to the air switch, very
gently suck on the loose end of the hose (you may want to remove the hose
entirely off the stove and the air switch first and make sure it is clear). If you
hear a click, the air switch is working. BE CAREFUL TOO MUCH VACUUM
CAN DAMAGE THE AIR SWITCH.
Display is Flashing “E3”
Possible Causes
Possible Remedies: (Unplug stove first when possible)
The hopper is out of pellets.
Refill the hopper.
The air damper is too far
open for a low feed setting.
If on the low setting, you may need to close the damper all the way.
The burnpot holes are
blocked.
Remove the burnpot and thoroughly clean it.
The air inlet, the interior
chambers, or exhaust
system has a partial
blockage.
Follow all cleaning procedures in the maintenance section of the owner's
manual.
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 two bolts that hold the auger bracket to the
auger tube. The auger bracket will now be able to be removed from the
auger tube. Remove the two bolts on the side of the auger tube to remove
the lower bearing of the auger. Pull the auger out of the tube to free the
jam. Inspect auger before replacing.
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.
The control board is not
sending power to the POF
thermodisc or other auger
system components.
There should be a 5-volt (approximately) current going to the POF
thermodisc after the stove has been on for 10 minutes.
Содержание AP5790
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