Specifications

31
Room Temperature Thermistor
– Check thermistor wiring for damage, loose or broken connections or wires.
– Measure resistance of thermistor
– Replace Sensor
32
Room Temperature Thermistor
– Short circuit, replace thermistor
33
Overheat Thermistor
–Check thermistor wiring for damage, loose or broken connections or wires
– Measure resistance of thermistor
– Replace Sensor
34
Overheat Thermistor
– Short Circuit, replace thermistor
62
Combustion Fan Failure
– Ensure fan will turn freely
– Check wiring harness to motor for damaged and/or loose connections
– Measure resistance of motor windings
– Replace fan motor
70
ON/OFF Switch Faulty
– Check wiring harness from control panel to P.C board for loose or damaged wires or
connections.
– Replace control panel
71
Solenoids or Modulating Valve Circuit
– Check to ensure all gas solenoids or plugged into the solenoid valves.
– Check to ensure they are plugged into the correct solenoid valve.
– Check resistance value of all gas solenoid valves
– Replace defective solenoid.
– Replace P.C. board.
72
ODS #1
ODS #2
Burner ODS #1 & Pilot ODS #2 initial
value abnormal
– Verify low and high fire gas pressures were properly set.
– Replace defective ODS Sensor
73
P.C Board abnormal –Press the ON/Off button twice to reset heater
Fault Codes