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© 2023 United States Stove Company
TROUBLESHOOTING GUIDE
Display is Flashing “E2”
Possible Causes
Possible Remedies: (Unplug stove first when possible)
Airflow switch hose or stove attachment pipes
for hose are blocked.
Unhook air hose from the air switch and blow through it. If air
flows freely, the hose and tube are fine. If air will not flow throw
the hose, use a wire coat hanger to clear the blockage.
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 firebox is not properly sealed.
Make sure the door is closed and that the gasket is in good shape.
Vent pipe is incorrectly installed.
Check to make sure vent pipe installation meets criteria in
owner’s manual.
The 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, make sure the control board is
sending power to the air switch.
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.
