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Frequent use of your heater will let you determine your own comfort levels. MANUAL LIGHTING PROCEDURE 1. Remove front panel (see Figure 7, page 9). 2. Follow steps 1 through 5 under Lighting Instructions, page 16. 3. With control knob pressed in, strike match. Hold match to pilot until pilot lights. 4. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 8, under Lighting Instructions, column 1. 5. Replace front panel. 114683-01B INSPECTING HEATER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 23 shows a correct pilot flame pattern. Figure 24 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down. If pilot flame pattern is incorrect, as shown in Figure 24 • turn heater off (see To Turn Off Gas to Appliance, page 16 or 17) • see Troubleshooting, page 20 Note: The pilot flame on natural gas units will have a slight curve, but flame should be blue and have no yellow or orange color. Thermocouple Pilot Burner Blue Flame Figure 23 - Correct Pilot Flame Pattern Thermocouple Yellow Flame Pilot Burner Figure 24 - Incorrect Pilot Flame Pattern BURNER FLAME PATTERN WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame. Figure 25 shows a correct burner flame pattern. Figure 26 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the heat shield height. If burner flame pattern is incorrect, as shown in Figure 26 • turn heater off (see To Turn Off Gas To Appliance, page 16 or 17) • see Troubleshooting, page 20 1/2 Blue Flame Heat Shield Height Figure 25 - Correct Burner Flame Pattern Yellow Tipping Heat 1/2 Shield Height Figure 26 - Incorrect Burner Flame Pattern 114683-01B CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. ODS/PILOT AND BURNER Use a vacuum cleaner, pressurized air or small, soft bristled brush to clean. BURNER PILOT AIR INLET The primary air inlet hole allows the proper amount of air to mix with the gas. This provides a clean burning flame. Keep this hole clear of dust, dirt and lint. Clean this air inlet hole prior to each heating season. Ablocked air hole will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person. We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store or home center may carry compressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don.t follow directions on the can, you could damage the pilot assembly. 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes. 2. Inspect burner, pilot for dust and dirt. 3. Blow air through the ports/slots and holes in the burner. 4. Never insert objects into the pilot tube. Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet about two inches from where the pilot flame comes out of the pilot assembly (see Figure 27). With the unit off, lightly blow air through the air inlet. You may blow through a drinking straw if compressed air is not available. Pilot Air Inlet Pilot Assembly Figure 27 - Pilot Inlet Air (Propane/LP Pilot Shown) CABINET Air 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. CAUTION: You must keep control areas, burner and circulating air passagewaysofheater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc. WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage. 114683-01B TROUBLESHOOTING WARNING:Turnoffandunplugheaterandletcoolbeforeservicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed, there is no spark at ODS/pilot 1. Ignitor electrode p...

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