Hearthstone Quality Home Heating Products, Inc.
Heritage Model 8090 Pellet Stove
Page 40 of 53
Troubleshooting
Most errors and issues are due to a lack of required maintenance, or cleaning. Using the instructions on the
following pages should resolve most issues. If an operation error is detected, the user interface flashes, and
displays a message. If the message prompts the unit to shut down, a
>I/O<
notice will follow the text of the
message. To acknowledge a message, press and hold the power button for approximately 5 seconds, if the
process associated with the message is complete, the stove will return to OFF Mode. At this point, normal
operation may begin again if all conditions are satisfied.
Display Messages:
Display Problem
Possible
Causes
Solution
No Pellets -
(code F04)
Temperature in
firebox unexpectedly
dropped, or set point
never reached
Pellet fuel level too low
Refill hopper
Inferior, or wet pellets
Clean out hopper, and auger – refill with
premium, dry pellets
Auger jammed
Clean the auger. Follow the procedure
in Maintenance section of this manual.
Hopper door open
Close hopper door
No Ignition
- (code
F01)
Required pellet
ignition temperature
not achieved during
startup – firebox
temperature too low
Dirty Stove
Preform a Yearly Cleaning (see page
36)
Inferior/wet pellets
Consult your Hearthstone dealer for a
recommended pellet type and storage
Auger clogged with fines
Clean auger
Burn pot full of ash or
clinkers
Clean burn pot
Ash pan full and ashes
contacting bottom of burn
pot
Empty ash pan.
Auger was completely
empty and did not refill fast
enough
Reset and start again. When the auger
is empty, it may be necessary to add 1
cup of pellets to the burn pot prior to
starting the unit.
Front door, or ash pan open Check both and verify they are closed
completely, and sealing properly
Hopper door is open
Close hopper door
Blocked exhaust venting
Clean venting
Restricted air intake, or
outside air intake required.
Inspect ducting. Remove blockage.
Install outside air intake
Burn pot installed
backwards
Install burn pot so ignitor hole is
towards the rear of the stove
Ignitor failed
Check wiring. Replace igniter
STb
Initiated -
(code F03)
Firebox/heat
exchanger
temperature too high
C-Fan (convection fan)
setting above +5
Reset program. Do not adjust C-Fan
setting.
Convection fan not working
Service the unit.
Convection fan clogged
Clean the convection fan. Follow the
procedure in the Maintenance section
of this manual.
Top grill blocked
Remove any blockage from top of
stove. Check for lint or hair on screen.