www.desatech.com 116658-01D6ClEaNiNG aNDmaiNTENaNCEWARNING: Turn off fireplaceand let cool before cleaning.CAUTION: You must keepcontrol areas, burner, and cir-culating air passageways offireplace clean. Inspect theseareas of fireplace before eachuse. Have fireplace inspectedyearly by a qualified serviceperson. Fireplace may needmore frequent cleaning due toexcessive lint from carpeting,pet hair, bedding material, etc.WARNING: Failure to keepthe primary air opening(s) ofthe burner(s) clean may result insooting and property damage.BURNER INjECTOR HOLDER ANDPILOT AIR INLET HOLEThe primary air inlet holes allow the proper amountof air to mix with the gas. This provides a cleanburning flame. Keep these holes clear of dust, dirt,lint, and pet hair. Clean these air inlet holes prior toeach heating season. Blocked air holes will createsoot. We recommend that you clean the unit everythree months during operation and have fireplaceinspected yearly by a qualified service person.We also recommend that you keep the burnertube and pilot assembly clean and free of dust anddirt. To clean these parts we recommend usingcompressed air no greater than 30 PSI. Your localcomputer store, hardware store, or home centermay carry compressed air in a can. You can use avacuum cleaner in the blow position. If using com-pressed air in a can, please follow the directions onthe can. If you don’t follow directions on the can,you could damage the pilot assembly.1. Shut off the unit, including the pilot. Allowthe unit to cool for at least thirty minutes.2. Inspect burner, pilot, and primary air inletholes on injector holder for dust and dirt (seeFigure 49).3. Blow air through the ports/slots and holes inthe burner.4. Check the injector holder located at the endof the burner tube again. Remove any largeparticles of dust, dirt, lint, or pet hair with asoft cloth or vacuum cleaner nozzle.5. Blow air into the primary air holes on theinjector holder.6. In case any large clumps of dust have now beenpushed into the burner repeat steps 3 and 4.Clean the pilot assembly also. A yellow tip on thepilot flame indicates dust and dirt in the pilot as-sembly. There is a small pilot air inlet hole about2" from where the pilot flame comes out of thepilot assembly (see Figures 50 or 51 depending onmodel). With the unit off, lightly blow air throughthe air inlet hole. You may blow through a drinkingstraw if compressed air is not available.Figure 49 - Injector Holder On OutletBurner TubeBurnerTubeInjectorHolderPrimary AirInlet HolesLOG SET• If you remove one-piece log set for cleaning,refer to page 21, for placement instructions.• Replace log set if broken or chipped (dime-sizedor larger).CABINETAir PassagewaysUse a vacuum cleaner or pressurized air to clean.ExteriorUse a soft cloth dampened with a mild soap andwater mixture. Wipe the cabinet to remove dust.Figure 50 - Pilot Inlet Air Hole(Propane/LP Gas)Pilot AssemblyPilot Air Inlet HolePilot AssemblyPilot AirInlet HoleFigure 51 - Pilot Inlet Air Hole(Natural Gas)