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© 2021 United States Stove Company
When your stove acts out of the ordinary, the first reaction is to call for help. This guide may save time and money by
enabling you to solve simple problems yourself. Problems encountered are often the result of only five factors: 1) poor
fuel; 2) poor operation or maintenance; 3) poor installation; 4) component failure; 5) factory defect. You can usually
solve those problems related to 1 and 2. Your dealer can solve problems relating to 3, 4 and 5. Refer to diagrams on page
20 to help locate indicated parts. For the sake of troubleshooting and using this guide to assist you, you should look at
your heat level setting to see which light is flashing.
** CAUTION – UNPLUG THE STOVE FROM ALL POWER PRIOR TO ATTEMPTING TO SERVICE THE UNIT! **
STOVE SHUTS OFF AND THE #2 LIGHT FLASHES
Possible Causes:
Possible Remedies:
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 tubes are fine. If air will not flow through 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 clearing 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. If the
ash door has a latch, make sure the ash door is properly latched and the
gasket is sealing good. If the stove has just a small hole for the ashes to
fall through under the burnpot, make sure the slider plate is in place to
seal off the firebox floor.
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.
The gray wires are pulled loose at the
Molex connector on the wiring harness.
Check to see if the gray wires are loose at the
Molex connector.
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 #8.
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 (very rare).
To test 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.
TROUBLESHOOTING GUIDE
