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Resumen del manual
1. Slightly press in control knob and turn counterclockwise to the LOW or HIGH positions (VN12A) or ON position (VN6B). IMPORTANT:Release downward pressure while turning control knob. Control knob will lock at the desired position. Control VN12A Control VN6B Knob Burners Knob BurnerOFF OFF PILOT PILOT ON LOW OFF OFF PILOT HIGH OFF Figure 17 - Burner Patterns 18 OPERATING HEATER Continued INSPECTING BURNER TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Turn control knob clockwise to the OFF position. Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise to the PILOT position. MANUAL LIGHTING PROCEDURE 1. Remove front panel (see Figure 10, page 12). 2. Follow steps 1 through 5 under Lighting Instructions, pages 16 and 17. 3. With control knob pressed in, strike match. Hold match to pilot until pilot lights. 4. Keep control knob pressed in for 10 seconds after pilot is lit. After 10 seconds, release control knob. 5. Replace front panel. Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 18 shows a correct pilot flame pattern. Figure 19 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. Thermocouple Pilot Burner Figure 18 - Correct Pilot Flame Pattern Thermocouple Pilot Burner Figure 19 - Incorrect Pilot Flame Pattern If pilot flame pattern is incorrect, as shown in Figure 19 • turn heater off (see To Turn Off Gas to Appliance, above) • see Troubleshooting, pages 21 through 24 Continued 19 INSPECTING BURNER Continued CLEANING AND MAINTENANCE BURNER FLAME PATTERN Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. Figure 20 - Correct Burner Flame Pattern (Model VN12A Shown) Figure 21 - Incorrect Burner Flame Pattern (Model VN12A Shown) If burner flame pattern is incorrect, as shown in Figure 21 • turn heater off (see To Turn Off Gas to Appliance, page 19) • see Troubleshooting, pages 21 through 24 WARNING Turn off heater and let cool before cleaning. CAUTION You must keep control areas, burner, and circulating air passageways of heater 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, etc. ODS/PILOT AND BURNER ORIFICE • Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean. 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. 20 TROUBLESHOOTING Note: All troubleshooting items are listed in order of operation. WARNING Turn off heater and let cool before servicing. 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. OBSERVED POSSIBLE PROBLEM CAUSE REMEDY When ignitor button is pressed and control knob is pressed in and turned to the PILOT position, there is no spark at ODS/pilot When ignitor button is pressed and control knob is pressed in and turned to the PILOT position, there is spark at ODS/pilot but no ignition 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 1. Gas supply turned off or manual shutoff valve closed 2. Control knob not in PILOT position 3. Control knob not pressed in while in PILOT position 4. Air in gas lines when installed 5. ODS/pilot is clogged 6. Gas regulator setting is not correct 1. Replace ignitor 2. Replace ignitor 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 control valve (piezo is part of control valve) 1. Turn on gas supply or open manual shutoff valve 2. Turn control knob to PILOT position 3. Press in control knob while in PILOT position 4. Continue holding down control knob. Repeat igniting operation until air is removed 5. Clean ODS/pilot (see Cleaning and Maintenance, page 20) or replace ODS/pilot assembly 6. Replace gas regulator Continued TROUBLESHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE REMEDY ODS/pilot lights but flame goes out when control knob is released Burner(s) does not light after ODS/pilot is lit Delayed ignition of burner(s) Burner backfiring during combustion 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Manual 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 flam...
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