Harman Invincible Insert Pt2 Owner's Manual
Maintenance
The Invincible Insert is designed to need little
maintenance mechanically . However, The
stove must be cleaned when needed to
maintain top performance.
AS NEEDED
Burn Pot
Flame Guide
Fig. 15
Fig. 14
Thumb
Screws
Scraper
Slide Plate
* Fill hopper with pellets and remove ashes.
* Clean burn pot (scrape carbon loose with
scraper), fig. 14. If the fire is pushing out
more in the middle of the burnpot than before
or pushing partially burned pellets off the
edge, these are indications that the burnpot
needs cleaned.
*Remove, clean, and inspect flame guide for
warpage and replace as needed, fig. 15. The
flame guide is an expendable part and may
need to be replaced in a few years.
* Open burn pot clean-out slide plate by
loosening the two thumb screws and rotating
the slide plate clockwise, fig. 15. Remove fly
ash and replace slide plate.
* Clean glass. A dry paper towel will do the
job in most cases. If a cleaning fluid is used,
do not allow fluid to run down into the slot at
the bottom of the corner glass. Always keep
these slots clean. (Always wear gloves).
Burn Pot
Fig. 16
Remove Vertical
Baffles through
the top door
opening
ANNUALLY (or as needed)
* Remove vertical baffles from firebox by first
removing the thumb screws. Next rotate the
baffles around to the front and remove
through the door opening, fig. 16. This exposes the divider baffles which can be removed by first removing the thumb screws,
fig. 18.
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Combustion
Blower
Fig. 17
Flexible Brush
Vertical
Baffle
*Clean fly ash from heat exchanger tubes with
flexible brush (Fig 17). There are two
vertical tubes on each side and a horizontal
side tube which runs front to back. There is
also a horizontal tube across the back which
can be cleaned through the rear access port
(Fig, 18). After the fly ash is brushed loose,
use a vacuum cleaner to extract to extract
the residue.
* Clean combustion blower through access
port in rear of unit. In extreme cases the
motor assembly can be removed for better
access to the blades. Be careful not to tear
the gasket.
The blower is sealed to the mounting plate
with silicone and will need to be pried loose
if the blower housing ever needs to be
replaced.
Divider Baffle
Fig. 18
Vertical Heat
Exchanger Tubes
Side Heat
Exchanger Tube
Thumb Screws
Docking Gasket
ESP Probe
Rear Heat Exchanger Tube
Rear Access
Port
* Clean ESP probe. This can be done by
removing the probe or by reaching through
the access port (Fig. 19). Inspection can be
improved by removing the probe.
* Check the docking gasket to make sure it is
in good condition (Fig 19).
Note: Fig. 18 & 19 show heat
exchanger and rear firebox
only. This is done to better
illustrate cleaning.
Fig. 19
This unit has been designed and
tested to be operated with the door
closed. The door should only be
opened to remove ashes. Normally
the door open time to remove the
ashes is less than 10 seconds and
does not pose a problem. Keep
hopper lid closed except when
loading.
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Tr ouble Shooting
FEEDER DOES NOT FEED
1. No pellets in hopper.
2. Feed motor will not run until ESP
senses 165 deg. F. Maybe you did not put
enough pellets in the burn pot before lighting
the fire.
3. Feed motor has failed.
4. Something is restricting flow in the hopper
or causing the slide plate to stick.
P AR TICIALLY BURNED PELLETS
1. Feed rate too high.
2. Draft too low. (check burn pot clean- out
slide and door gasket).
3. Burn pot or heat exchanger tubes may need
cleaned.
4. Combination of all.
SMOKE SMELL
Seal the vent pipe joints and connection to
stove with silicone.
FIRE HAS GONE OUT
1. No pellets in hopper.
2. Feed rate too low.
3. Something is restricting fuel flow .
4. Feed motor or draft motor has failed.
5. Power failure.
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.
LOW HEA T OUTPUT
1. Feed rate too low
2. Draft too low because of gasket leak.
3. Poor quality or damp pellets
4. Combination of 1. and 2.
STATUS LIGHT ERROR MESSAGES
Refer to page 10.
Helpful Hints
Cleaning Burn Pot
Whenever your stove is not burning, take the
opportunity to scrape the burn pot to remove
carbon 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 floor and sides of the burn
pot. The carbon will be pushed out by the incoming
fuel. Always wear gloves to do this.
Removing Ashes
Turn the Stove Temp Dial to number 1 ap-
Fuels
All W ood pellets
Cardboard pellets
W alnut shell pellets
75% Corn, 25% Wood pellets
proximately 30 minutes before removing ashes.
This will result in a cooler stove and ash pan.
Maximum settings are not needed in most
cases. Always remember the maximum feed rate
and do not exceed. Too high a feed rate will push
partially burned fuel off the end of the burn pot,
wasting fuel and causing the glass to get dirty .
Using a lower feed rate than maximum is recommended when maximum heat output is not required.
Keep the stove free of dust and dirt.
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