© 2021 United States Stove Company
17
TROUBLE SHOOTING 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.
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.
