25
Intro to Troubleshooting
Compared to a conventional wood-burning
stove, a pellet stove features a lot more
mechanical and electronic systems. As a result,
a number of problems may arise that can have
a negative influence on both ignition and com-
bustion.
It is a good idea to check through these trou-
bleshooting guidelines before calling a service
technician and/or submitting a complaint.
Troubleshooting
Before ignition, check that:
a) The iron lid in the top to the pellet tank
seal tightly.
b) The burn pot is sitting tightly against the
lower section, and that there is no ash or
pellet residue between the burn pot and
the pipe in which it is fitted.
c) The seal on the ash pan is intact, and
that the pan closes tightly against the
stove.
d) The seal on the door to the combustion
chamber is intact, and all edges of the
door sit tightly against the chamber.
e) The stove has been thoroughly cleaned
as described in the cleaning section of
this guide.
f) The filter on the intake is clean and free
of dust etc.
If there are faults in one or more of the areas
mentioned above, rectify the fault and then test
run the stove.
Detailed explanations of sections a through f
Section a: If the seal between these parts is
not tight, unwanted air will be drawn through
the pellet tank and into the stove. This air will
not contribute to the combustion process –
rather it will reduce the volume of air used for
combustion. The effect on/diminishing of the
combustion process will be greater the fewer
pellets are left in the tank, because the air re-
sistance through the tank falls in step with the
quantity of pellets in it.
Section b: It is important that the burn pot
is correctly positioned and forms a tight seal
with the stove, because the combustion air will
otherwise flow around the pot. This will result
in poorer combustion and diminish the effect of
the cleaning function. The diminishing effect on
the combustion will increase proportionately to
the soiling of the burn pot.
Sections c and d: It is essential to keep the
ash pan and the seal on the door tight because
even a small leak will have serious consequen-
ces on the combustion. If the ash pan is even
slightly open, the stove will hardly be able to
burn any fuel at all, and will quickly become
dirty.
Section e: If this section is not cleaned regu-
larly as described in this guide, it will also result
in faster soiling of the interior ducts in the stove
and require more regular service visits involving
dismantling the stove and cleaning the insides
of the pipes, ducts and chambers.
Section f:
In case the intake filter is not clean and free of
dust etc. clean this by either vacuuming it or
blowing it clean.
In this case with an unclean filter, the stove
may have startup problems and you may find
that the burn pot is completely filled with wood
pellets without igniting them. This is due to an
excessive amount of combustion air as the flow
sensor, which is located inside the intake pipe,
sends signal to the controller of how much air
passes through the intake pipe and at
Clogging of either the filter or the Flow sensor
itself, this will provide incorrect information for
the controller that it should turn up the combu-
stion air because it can not detect any airflow.
In special cases, dust and other particles may
pass and may interfere with the signal from the
Flow Sensor. This can be removed by removing
the filter and extension tube, and then brush
the sensor softly with a soft brush and like a
toothbrush.
7 Troubleshooting.
See page 26 for illustrations
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