Bosca SPIRIT 500 Installation And Operating Instructions Manual page 34

OWNER´S MANUAL
STOVE SHUTS OFF AND THE #3 LIGHT FLASHES
7.-The auger shaft if jammed.
8.-The auger motor has failed.
9.-The Proof of Fire (POF) thermodisc has
malfunctioned.
10. The high limit thermodisc has tripped or
is defective.
11.- The fuse on the control board has
blown.
12.- The control board is not sending power
to the POF thermodisc or other auger system
components.
Start by emptying the hopper. Then remove the
auger motor by removing the auger pin. Remove
the auger shaft inspection plate in the hopper
so that you can see the auger shaft. Gently lift
the auger shaft straight up so that the end of the
auger shaft comes up out of the bottom auger
bushing. Next, remove the two nuts that hold
the top auger biscuit in. Then rotate the bottom
end of the auger shaft up towards you until you
can lift the shaft out of the stove. After you have
removed the shaft, inspect it for bent flights, burrs,
or broken welds. Remove any foreign material
that might have caused the jam. Also, check the
auger tube for signs of damage such as burrs,
rough spots, or grooves cut into the metal that
could have caused a jam.
Remove the auger motor from the auger shaft
and try to run the unit. It the motor will turn the
shaft is jammed on something. If the motor will
not turn, the motor is bad.
Temporarily bypass the POF thermodisc by
disconnecting the two brown wires and
connecting them with a short piece of wire. Then
plug the stove back in. If the stove comes on and
works, you need to replace the POF thermodisc.
This is for testing only. DO NOT LEAVE THE
THERMODISC BYPASSED. Your blowers will never
shut off and if t he fire went out the auger will
continue to feed pellets until the hopper is empty
if you leave the POF thermodisc bypassed.
Wait for the stove to cool for about 30—40
minutes. It should now function normally. If not
use the Owner's Manual to locate the high limit
thermodisc. To test if the thermodisc is bad, you
can bypass it as described previously for the POF
thermodisc.
Remove the control board. If the fuse appears to
be bad, replace it with a 5 Amp 250 Volt fuse.
Plug the stove back in and try to run the unit.
There should be a 5-volt (approximately) current
going to the POF thermodisc after the stove has
been on for 10 minutes.
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