Harman Stove Company PC 45 - Manuel (Page 22)

22 PC 45 Corn/Pellet Stove
FEEDER DOES NOT FEED
1. No fuel in hopper.
2. Firebox draft may be too low for low draft pres-
sure switch in feeder circuit to operate. Check for
closed doors, loose or missing gasket on doors
or hopper lid, faulty pressure switch.
3. Feed motor will not run until ESP senses 200
o F.
Maybe you did not put enough pellets in the burn
pot before lighting the fire.
4. Something is restricting flow in the hopper or
causing the slide plate to stick.
5. Feed motor has failed.
PARTIALLY BURNED FUEL
1. Feed rate too high.
2. Draft too low.
3. Burn pot may need to be cleaned.
4. Combination of all the above.
5. #6 status blink: A 6 blink control board status
indication is caused by poor or incomplete com-
bustion. The circuit board has the ability to track
the combustion through feed settings and ESP tem-
peratures. When the control board has calculated
poor or incomplete combustion it will shut down
the unit as a safety feature. (Poor or incomplete
combustion is a contributer of creasote which may
cause a chimney fire)
A 6 blink status may be caused by several things:
1. Blocked or partially blocked flue.
2. Blocked or partially blocked inlet air.
a. backdraft damper on the inlet pipe may be
stuck closed.
b. if outside air is installed the inlet cover may be
blocked.
3. The air chamber under the burnpot may be filled
with fines and small bits of ash.
4. The holes in the burnpot may be getting filled
with ash or carbon buildup.
5. Co mbus tio n blower f an bla des may ne ed
cleaned.
6. There is no fuel in the hopper.
COMBUSTION BLOWER RUNS AFTER SHUT DOWN
This is a normal function. The combustion blower
will run for 5 hours after the stove is completely
cool.
SMOKE SMELL
Seal the vent pipe joints and connection to stove
with silicone.
FIRE HAS GONE OUT
1. No fuel in hopper.
2. Draft setting is too low.
3. Something is restricting fuel flow.
4. Feed motor or draft motor has failed.
5. Power failure or blown fuse.
SMOKE IS VISIBLE COMING OUT OF VENT
1. Air-fuel ratio is too rich.
A. Feed rate too high.
B. Draft too low caused by a gasket leak.
2. Unit is in an ignition cycle.
LOW HEAT OUTPUT
1. Feed rate too low
2. Temperature setting too low (Stove Temp Mode)
3. Draft too low because of gasket leak.
4. Poor quality or high moisture fuel.
PC 45 Trouble-Shooting
Cleaning Burn Pot
Whenever your stove is not burning, take the
opportunity to scrape the burn pot to remove car-
bon buildup. A vacuum cleaner is handy to remove
the residue. Be sure the stove is cold if you use a
vacuum.
Carbon buildup can be scraped loose with the
fire burning using the special tool provided with your
stove. Scrape the sides of the burnpot (corn grate),
and the floor and sides (pellet grate). The carbon
will be pushed out by the incoming fuel. Always wear
gloves to do this.
Removing Ashes
Turn the Temp Dial to number 1 approximately
30 minutes before removing ashes. This will result
in a cooler stove and ash pan.
Maximum Feed Adjuster settings are not
needed in most cases. Operating in the normal
range (#2 corn) (#4 pellet) is recommended when
maximum heat output is not required. The ESP
probe prevents the stove from being over-fired.
Keep the stove free of dust and dirt.
Fuel
The PC 45 can burn corn with moisture levels
up to 16%, with 14.5% or less ideal.
Pellet fuels are put into 3 categories in terms of
ash content. Premium at 1% or less, Standard at
3% or less and all others at 3% or more.
The PC 45 is capable of burning all 3 catego-
ries of pellets due to a patented feeder and burn pot
system.
It should be noted, however, that higher ash con-
tent will require more frequent ash removal and may
provide less BTU's per pound. Normally, standard
and high ash pellets cost less than premium pellets
and can be cost effective when burned in the PC 45.
The moisture content of pellets must not exceed
8%. Higher moisture will rob BTU's and may not burn
properly.
Helpful Hints