Harman® • PF-120 Owner’s Manual_R3 • 2014 -___ • 10/1415
3-90-08120c
5
Maintenance & Service
C. Quick Reference Maintenance Chart
Follow the detailed instructions found in this section
for each step listed in the chart below.
Cleaning or Inspection
Frequency Daily Weekly Monthly Yearly
AshPan/AshRemovalfromFirebox 100-120hours OR X
HeatExchanger 100-120hours OR X
Blower,Combustion(Exhaust) Morefrequentlydependingon
thefueltype
OR X
Blower,Distribution OR X
DoorGasketInspection Priortoheatingseason OR X
ExhaustPath Morefrequentlydependingon
ashbuild-up
OR X
Firebox-PrepareforNon-BurnSeason Atendofheatingseason OR X
Burnpot-Burningpellets-hardwood 50Hours OR X
Burnpot-Burningpellets-softwood 60Hours OR X
Glass Whenclearviewofburnpot
becomesobscure
OR X
Hopper/HopperLidGasket OR X
VentingSystem Morefrequentlydependingon
thefueltype
OR X
NOTICE: These are recommendations. Clean more frequently if you encounter heavy build-up of ash at the
recommended interval or you see soot coming from the vent. Not properly cleaning your appliance on a regular
basis will void your warranty.
Shock and Smoke Hazard
• Turn unitto the off position, let appliance
completely cool and combustion blower must
be off. Now you can unplug appliance before
servicing.
• Smokespillageintoroomcanoccurifappliance
isnotcoolbeforeunplugging.
• Riskofshockifappliancenotunpluggedbefore
servicingappliance.
A. Proper Shutdown Procedure
CAUTION
B. General Maintenance
Types of Fuel
Thetypeoffuelyouareburningwilldictatehowoftenyou
havetocleanyourburnpot.
Ifthefuelyouareburninghasahighdirtorashcontent,it
maybenecessarytocleantheburnpotmorethanonceaday.
Dirtyfuelwillcauseclinkerstoformintheburnpot.Aclinkeris
formedwhendirt,ashoranon-burnablesubstanceisheated
to2000°F(1093°C)andbecomesglass-like.
Cleaning Cycle Meter
A cleaning cycle hour meter (pictured below)keeps track
ofthe totalaccumulatedhoursthe feeder motorruns,not
the number of hours the unit is in operation. By knowing
thisyoucankeeptrackofhowoftenyouneedtocleanthe
burnpotandheatexchangerwithyourbrandofpellets.
Some recommended hourly intervals are:
50hoursfortheburnpot.
100hoursforacompletecleaning.
Aftercleaningiscompleted,resetthehourmeterbypushing
theresetswitchlocatedintheupperlefthandcornerofthe
control.
Whenproperlymaintained,yourfurnacewillgiveyoumany
yearsoftrouble-freeservice.Contact your dealertoanswer
questionsregardingproperoperation,trouble-shootingand
serviceforyourappliance.Visitwww.harmanstoves.comto
ndadealer.Werecommendannualservicebyaqualied
servicetechnician.