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Display is Flashing "E2"
Possible Causes
Airflow switch hose or stove attachment pipes for
hose are blocked.
The air inlet, burnpot, interior combustion air
chambers, combustion blower, or exhaust pipe
are blocked with ash or foreign material.
The firebox is not properly sealed.
Vent pipe is incorrectly installed.
The airflow switch wire connections are bad.
Combustion blower failure.
Control board not sending power to combustion
blower.
Control board not sending power to air switch.
Air switch has failed.
© 2022 United States Stove Company
TROUBLESHOOTING GUIDE
Possible Remedies: (Unplug stove first when possible)
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.
Follow all cleaning procedures in the maintenance section of the
owner's manual.
Make sure the door is closed and that the gasket is in good shape.
Check to make sure vent pipe installation meets criteria in owner's
manual.
Check the connectors that attach the gray wires to the air switch.
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.
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.
There should be a 5-volt current (approximately) going to the air
switch after the stove has been on for 30 seconds.
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.
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