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Bad electrical connection between ignitor and ignition control assembly 7. Defective ignitor 8. Defective ignition control assembly 9. 200 Model Only: Defective fuel valve (Models equipped with fuel valve only) 6. Check electrical connections. See Wiring Diagrams, page 17 7. Replace ignitor, see page 11 8. Replace ignition control assembly 9. See Fuel Valve, page 10 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 9 2. See Air Output, Air Intake, and Lint Filters, page 8 3. See Fuel Filter, pages 9 and 10 4. See Nozzle Assembly, pages 12 and 13 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 17 8. Defective photocell 8. Replace photocell 9. Defective ignition control assembly9. Replace ignition control assembly For more information, visit more information, visit 108871 8 Forr morre iinfforrmattiion,, viisiitt SERVICE PROCEDURES WARNING: To avoid risk of burn and electrical shock, never attempt to service heater while it is plugged in, operating, or hot. Upper Shell Fan Guard Figure 7 - Upper Shell Removal, 40/50/60/70 Models Only Figure 8 - Upper Shell Removal, 110/115/150/155/ 165/200 Models Only Fan Guard Upper Shell UPPER SHELL REMOVAL 1. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. See Figure 7 or 8. 2. Lift upper shell off. 3. Remove fan guard. Screw Screw FAN IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch (see Figure 9). 1. Remove upper shell (see Figure 7 or 8). 2. Use 1/8" allen wrench to loosen setscrew which holds fan to motor shaft. 3. Slip fan off motor shaft. 4. Clean fan using a soft cloth moistened with kerosene or solvent. 5. Dry fan thoroughly. 6. Replace fan on motor shaft. Place fan hub flush with end of motor shaft (see Figure 10). 7. Place setscrew on flat of shaft. Tighten setscrew firmly (40-50 inch-pounds/4.5-5.6 n-m). 8. Replace fan guard and upper shell. AIR OUTPUT, AIR INTAKE AND LINT FILTERS 1. Remove upper shell (see Figure 7 or 8). 2. Remove filter end cover screws using 5/16" nut-driver (see Figure 11 or 12). 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake filter (see Preventative Maintenance Schedule, page 6). 6. Replace filter end cover. 7. Replace fan guard and upper shell. IMPORTANT: Do not oil filters. Motor Shaft Setscrew Figure 9 - Fan, Motor Shaft, and Setscrew Location Motor Shaft Fan Setscrew Figure 10 - Fan Cross Section Fan Flush Motor Figure 11 - Air Output, Air Intake, and Lint Filters, 40/55/60/70 Models Only Air Intake Filter Lint Filter Filter End Cover Air Output Filter Figure 12 - Air Output, Air Intake, and Lint Filters, 110/115/150/ 155/165/200 Models Only Air Intake Filter Filter End Cover Lint Filter Air Output Filter SERVICE PROCEDURES 108871 99 Forr morre iinfforrmattiion,, viisiitt Figure 15 - Fuel Filter Removal, 40/55/60/70 Models Fuel Filter and Bushing Side Cover Upper Fuel Line Fuel Filter, Bushing, and Lower Fuel Line Upper Fuel Line Side Cover Figure 16 - Fuel Filter Removal, 110/115/150/155/165 Models SERVICE PROCEDURES PUMP PRESSURE ADJUSTMENT 1. Remove pressure gauge plug from filter end cover (see Figure 13). 2. Install accessory pressure gauge (part number HA1180). 3. Start heater (see Operation, page 5). Allow motor to reach full speed. 4. Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. See specifications correct pressure for each model (see Figure 14). 5. Remove pressure gauge. Replace pressure gauge plug in filter end cover. SERVICE PROCEDURES Continued Figure 13 - Pressure Gauge Plug Removal (40/55/60/70 Models Shown) Pressure Gauge Plug Pressure Gauge Figure 14 - Adjusting Pump Pressure (40/55/60/70 Models Shown) Relief Valve Pump Model Pressure 40 3.0 PSI 55 3.4 PSI 60 3.4 PSI 70 4.7 PSI 110 5.3 PSI 115 5.3 PSI 150 5.4 PSI 155 5.4 PSI 165 5.6 PSI 200 6.2 PSI FUEL FILTER (For 40/55/60/70/110/115/150/155/165 Models Only) 1. Remove side cover screws using 5/16" nut-driver. 2. Remove side cover. 3. Pull upper fuel line off fuel filter neck (see Figure 15 or 16). 4. Carefully pry bushing, fuel filter, and lower fuel line (110/115/ 150/155/165 Models only) out of fuel tank (see Figure 16). 5. Wash fuel filter with clean fuel and replace in tank. 6. Attach upper fuel line to fuel filter neck. 7. Replace...