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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. ODS/PILOT AND BURNER ORIFICE • Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean. CLEANING BURNER PILOT AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, lint, and pet hair. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have fireplace 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. 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 hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 30). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available. Pilot Assembly Pilot Air Inlet Hole Figure 30 - Pilot Inlet Air Hole 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. For more information, visit more information, visit 107902-01D TROUBLESHOOTING 17 TROUBLESHOOTING Note: For additional help, visit DESA International’s technical service web site at Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. POSSIBLE CAUSE 1. Ignitor electrode positioned wrong 2. Ignitor electrode broken 3. Ignitor electrode not connected to ignitor cable 4. Ignitor cable pinched or wet 5. Piezo ignitor nut is loose 6. Broken ignitor cable 7. Bad piezo ignitor When ignitor button is pressed, there is spark at ODS/pilot but no ignition 1. Gas supply turned off or equipment shutoff valve closed 1. Turn on gas supply or open equipment shutoff valve 2. Control knob not in PILOT position 3. Control knob not pressed in while in PILOT position 2. Turn control knob to PILOT position 3. Press in control knob while in PILOT position 4. Air in gas lines when installed 4. Continue holding down control knob. Repeat igniting operation until air is removed 5. Depleted gas supply (propane/LP only) 6. ODS/pilot is clogged 5. Contact local propane/LP gas company 6. Clean ODS/pilot (see Cleaning and Maintenance, page 16) or replace ODS/ 7. Gas regulator setting is not correct pilot assembly 7. Replace gas regulator CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit. REMEDY 1. Replace pilot assembly 2. Replace pilot assembly 3. Reconnect ignitor cable 4. Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry 5. Tighten nut holding piezo ignitor to heater cabinet. Nut is located inside heater cabinet at top 6. Replace ignitor cable 7. Replace piezo ignitor ODS/pilot lights but flame goes out when control knob is released 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Equipment shutoff valve not fully open 4. Thermocouple connection loose at control valve 5. Pilot flame not touching thermocouple, which allows thermocouple to cool, causing pilot flame to go out. This problem could be caused by one or both of the following: A) Low gas pressure B) Dirty or partially clogged ODS/pilot 6. Thermocouple damaged 7. Control valve damaged 1. Press in control knob fully 2. After ODS/pilot lights, keep control knob pressed in 30 seconds 3. Fully open equipment shutoff valve 4. Hand tighten until snug, then tighten 1/4 turn more 5. A) Contact local natural or propane/LP gas company B) Clean ODS/pilot (see Cleaning and Maintenance, page 16) or replace ODS/ pilot assembly 6. Replace pilot assembly 7. Replace control valve For more information, visit more information, visit 107902-01...

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