Harman® • P42i Owner’s Manual • 2023 -___ • 03/2314 8742-900A
AftertheHeatExchangerhasbeenscraped,usethedust
brushsuppliedtoremoveanyremainingy-ashfromtheHeat
Exchanger as well as otherareas throughoutthe rebox.
Figure2.5.
Figure 2.5
BrushthereboxfreeofremainingFly-Ash.
Figure 2.6
Cleaning the Burn Pot-
• Vigorously scrape the top holed surface and sides of the
burn pot down to auger tube, as suggested in the Daily/
WeeklyMaintenanceSection.
• Usethesuppliedallenwrenchtoremoveanybuild-upthat
may have accumulated in the holes of the burn pot grate.
Simply push the allen wrench down through each hole
ensuringitisclearofanybuild-uppayingattentionnotto
damage the igniter element in the process. Figure 2.6.
Disconnect the power to the unit before removing
cover.
DANGER
• Loosenthe(2)wingthumbscrewsonthelowerfrontangle
of the burn pot. Figure 2.7
• Liftotheclean-outcovertoopenthebottomclean-out
chamber. Figure 2.8
• Clean ash buildup from inside the chamber while cover
iso.Usethescrapertotaponthetopfrontedgeofthe
burn pot. This will help knock pieces of ash, loosened by
thescrapingprocess,downthroughtheholes.Italsohelps
knock ash buildup from the igniter element and bracket.
Clean Ash Accumulation
Figure 2.8
Figure 2.7
WingThumbScrews