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Check circuit breaker in electrical panel is plugged in and switched ON WARNING: High voltage! 2. Bad electrical connection between mo-2. Check all electrical connections. See tor and ignition control assembly or ig-Wiring Diagrams, page 12 nition assembly and power cord 3. Binding pump rotor 3. If fan does not turn freely, see Pump Rotor, page 11 4. Defective ignition control assembly 4. Replace ignition control assembly 5. Defective motor 5. Replace motor 6. Defective ON/OFF switch 6. Replace ON/OFF switch Motor starts and runs but heater does not 1. No fuel in tank 1. Fill tank with kerosene ignite 2. Pump pressure incorrect 2. See Pump Pressure Adjustment, page 8 3. Dirty fuel filter 3. See Fuel Filter, page 9 4. Obstruction in nozzle 4. See Nozzle, page 10 5. Water in fuel tank 5. Drain and flush fuel tank with clean kerosene. See Storing, Transporting, or Shipping, page 5 WARNING: High voltage! 6. Bad electrical connection between igni-6. Check electrical connections. See Wirtor and ignition control assembly ing Diagrams, page 12 7. Defective ignitor 7. Replace ignitor, see page 9 8. Defective ignition control assembly 8. Replace ignition control assembly Heater ignites but ignition control assembly shuts heater off after a short period of time 1. Pump pressure incorrect 2. Dirty air intake, air output, and/or lint filter 3. Dirty fuel filter 4. Obstruction in nozzle 5. Photocell assembly not properly installed (not seeing the flame) 6. Dirty photocell lens 1. See Pump Pressure Adjustment, page 8 2. See Air Output, Air Intake, and Lint Filters, page 8 3. See Fuel Filter, page 9 4. See Nozzle, page 10 5. Make sure photocell boot is properly seated in bracket 6. Clean photocell lens WARNING: High voltage! 7. Bad electrical connection between pho-7. Check electrical connections. See Wirtocell and ignition control assembly ing Diagrams, page 12 8. Defective photocell 8. Replace photocell 9. Defective ignition control assembly9. Replace ignition control assembly 6 104950 OWNER’S MANUAL TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating, orContinued hot. Severe burns and electrical shock can occur. RJ70 OBSERVED FAULT POSSIBLE CAUSE REMEDY Heater ignites, but flame-out control shuts off heater after a short period of time 1. Photocell assembly not properly installed (seeing flame) 2. Wrong pump pressure 3. Dirty air output, air intake and lint filters 4. Dirty fuel filter 5. Dirt in nozzle 6. Dirty photocell lens 7. Defective flame-out control 8. Defective photocell 1. Make sure photocell boot is properly seated in bracket 2. See Pump Pressure Adjustment, page 8 3. See Air Output, Air Intake and Lint Filters, page 8 4. See Fuel Filter, page 9 5. See Nozzle, page 11 6. Clean photocell lens 7. Replace flame-out control 8. Replace photocell Heater will not ignite, but motor runs for a 1. No fuel in tank 1. Fill tank with kerosene short period of time 2. Wrong pump pressure 2. See Pump Pressure Adjustment, page 8 3. Carbon deposits on spark plug and/or 3. See Spark Plug, page 10 improper gap 4. Dirty fuel filter 4. See Fuel Filter, page 9 5. Dirt in nozzle 5. See Nozzle, page 11 6. Water in fuel tank 6. Drain and flush fuel tank with clean kerosene. See Storage, Transporting, or Shipping,page 5 WARNING: High voltage! 7. Electronic ignitor not grounded 7. Make sure electronic ignitor mounting is tight 8. Defective electronic ignitor 8. Replace electronic ignitor Motor does not start when heater is plugged in and switched ON, fan rotates slowly or does not turn 1. Flame-out control not reset 2. Binding pump rotor 3. Defective motor 4. Defective ON/OFF switch 5. No power to heater 6. Bad electrical connections 1. Press flame-out control reset button 2. If fan is hard to turn, see Pump Rotor, page 11 3. Replace motor 4. Replace ON/OFF switch 5. Check circuit breaker in electrical panel 6. Check all electrical connections. See Wiring Diagrams, page 12 104950 7 8 104950 PORTABLE FORCED AIR HEATERS RJ45 And RJ70 PUMP PRESSURE ADJUSTMENT 1. Remove pressure gauge plug from filter end cover. 2. Install accessory pressure gauge (part number HA1180). 3. Start heater (see Operation, page 5). Allow motor to reach full speed. 4. Using a flat blade screwdriver, adjust pressure. Turn relief valve to right to increase the pressure. Turn relief valve to left to decrease the pressure. Set pump pressure as follows: RJ45: 0.22 kg/cm2 at 50 Hz. 0.24 kg/cm2 at 60 Hz. RJ70: 0.35 kg/cm2 at 50 Hz. 0.38 kg/cm2 at 60 Hz. 5. Remove pressure gauge. Replace pressure gauge plug in filter end cover. Figure 7 - Pressure Gauge Plug Removal Figure 8 - Adjusting Pump Pressure Pressure Gauge SERVICE PROCEDURES WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Figure 4 - Upper Shell Removal Figure 6 - Air Output, Air Intake, and Lint Filters Figure 5 - Fan Cross Section Upper Shell Fan Guard UPPER SHELL REMOVAL 1. Remove screws along each side of heater u...

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