© 2023 United States Stove Company
25
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.
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.
TROUBLESHOOTING GUIDE
