107902-01D16For more information, visit www.desatech.comFor more information, visit www.desatech.comCLEANING ANDMAINTENANCEWARNING: Turn off heater and let cool beforecleaning.CAUTION: You must keep control areas, burner,and circulating air passageways of heater clean. In-spect these areas of heater before each use. Haveheater inspected yearly by a qualified service person.Heater may need more frequent cleaning due to exces-sive lint from carpeting, bedding material, pet hair, etc.ODS/PILOT AND BURNER ORIFICE• Use a vacuum cleaner, pressurized air, or small, soft bristledbrush to clean.CLEANING BURNER PILOT AIR INLET HOLEThe primary air inlet holes allow the proper amount of air to mix withthe gas. This provides a clean burning flame. Keep these holes clearof dust, dirt, lint, and pet hair. Clean these air inlet holes prior to eachheating season. Blocked air holes will create soot. We recommendthat you clean the unit every three months during operation and havefireplace inspected yearly by a qualified service person.We also recommend that you keep the burner tube and pilotassembly clean and free of dust and dirt. To clean these parts werecommend using compressed air no greater than 30 PSI. Your localcomputer store, hardware store, or home center may carry com-pressed air in a can. You can use a vacuum cleaner in the blowposition. If using compressed air in a can, please follow the direc-tions on the can. If you don't follow directions on the can, you coulddamage the pilot assembly.1. Shut off the unit, including the pilot. Allow the unit to cool forat least thirty minutes.2. Inspect burner, pilot for dust and dirt.3. Blow air through the ports/slots and holes in the burner.CABINETAir Passageways• Use a vacuum cleaner or pressurized air to clean.Exterior• Use a soft cloth dampened with a mild soap and water mixture.Wipe the cabinet to remove dust.Figure 30 - Pilot Inlet Air HolePilot AssemblyPilot Air Inlet HoleCLEANING AND MAINTENANCEODS/Pilot and Burner OrificeCleaning Burner Pilot Air Inlet HoleCabinetClean the pilot assembly also. A yellow tip on the pilot flameindicates dust and dirt in the pilot assembly. There is a small pilotair inlet hole about two inches from where the pilot flame comes outof the pilot assembly (see Figure 30). With the unit off, lightly blowair through the air inlet hole. You may blow through a drinking strawif compressed air is not available.