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© 2021 United States Stove Company
Glass “Soot’s” Up At A Very Fast Rate
Flame Is Lazy, Dark, And Has Black Tips
After Stove Has Been On For A While, The Burnpot Overfills
Possible Causes
Possible Remedies: (Unplug stove first when possible)
Stove or vent pipe is dirty, which restricts
airflow through the burnpot.
Follow all cleaning procedure in the maintenance section
of the owner’s manual.
Vent pipe installed improperly.
Check to make sure the vent pipe has been installed
according to the criteria in the owner’s manual.
Burnpot holes are blocked.
Remove the burnpot and thoroughly clean it.
Blockage in air intake pipe.
Visually inspect the air intake pipe that leads into the
burnpot for foreign material.
Combustion blower is not spinning fast
enough.
Test the RPM on the blower after the blades have been
cleaned. The RPM should be approximately 3000 RPM.
Bad Pellets. (Applies to GLASS “SOOT’S” UP
AT A VERY FAST RATE Only)
The brand of pellets or the batch of pellets that are being
used may be of poor quality. If possible, try a different brand
of pellets. You might also want to try a brand that is made
from a different type of wood (softwood vs. hardwood).
Different woods have different characteristics when being
burned.
TROUBLESHOOTING GUIDE
High Limit Switch Keeps Tripping
Possible Causes
Possible Remedies: (Unplug stove first when possible)
The convection blower is overheating and
tripping the internal temperature shutoff.
Clean any dust off of the windings and fan blades. If oiling
the blower does not help, the blower may be bad.
The stove is being left on the highest setting
for extended periods of time.
If operating the heater on the highest heat setting, the
room temperature could increase enough and lead to
potential overheating situations. If this happens, try
operating at a lower heat setting.
Fuel other than wood pellets is being burned
in the stove.
This pellet stove is designed and tested to use wood pellets.
Check for signs of fuel other than wood pellets. No other
types of fuel have been approved for this pellet stove. If
there are signs of other types of fuel being used, stop using
them immediately.
Power surge or brown out situation.
A power surge, spike, or voltage drop could cause the
high limit switch to trip. Check to see if a surge protector
is being used on the stove. If not, recommend one to the
consumer.
High limit switch is malfunctioning.
If the other items check out okay, replace the high limit
switch.
