-11-
WARNING: Never leave the heater unattended while operating.
Disconnect the heater from its power source when not in use.
MODEL
R45K
R75K
R125K
R175K
R215K
PUMP
PRESSURE
3.3 PSI
3.2 PSI
5.2 PSI
6.0 PSI
7.0 PSI
7. Insert Fuel Filter in the Fuel Tank and using adjustable wrench turn the Filter 90 degrees clockwise.
8. Attach Fuel Line to Fuel Filter neck.
9. Reinstall side cover with screws provided.
ADJUSTING PUMP PRESSURE
After hours of use it may be necessary to adjust the Pump Pressure.
If the heater is not producing a strong flame:
Increase the pressure by turning the adjustment screw clockwise.
If the heater is producing a flame that extends beyond the end of the heater:
Reduce the pressure by turning the adjustment screw counterclockwise.
TROUBLESHOOTING
POSSIBLE CAUSE
CORRECTIVE ACTION
E1
Photocell (Flame Color Checking Sensor) Error
Oil Shortage
Bad Photocell (Flame Sensor)
Incomplete Combustion
Contamination of Fuel Filter
Ignition Failure
Charge Fuel (Fill the fuel if needed)
Check and clean or replace Photocell (Flame Sensor)
Using Designated Fuel
Clean or replace Fuel Filter
Check Wire Connection
Check Spark Plug For Normal Firing (clean or replace if needed)
E2
Temperature Sensor (Thermister) Error
Bad Connection or Sensor Error
Check Wire Connection
Replace Sensor
LO
Below 1°F
Normal
HI
Over 99°F
Normal
OH
Heater stops when the temperature reaches to
140°F
Restart After Cooling
CN
Continuously operating without set-
temperature
Normal
Blinking Error during operation
Check Error Code
Reset to Restart
Pressure
Gauge
Plug
Relief
Valve
Adjusting Pump Pressure
Model R75K
Adjusting Pump Pressure
Model R125K, R175K, R215K
