www.norcold.com/cda18 Refrigerator Service ManualN6XX/N8XX ModelsH/AC HE Fault Code – AC heater failed openAC heater resistance 38 to 53 Ω.Before beginning this procedure make sure: RV AC voltage to the refrigerator is 108 to 132 volts. No other appliance or lighting circuit is connected to the refrigerator AC circuit.N62X/N82XLP GASACAUTOONGASFlashing 3 times every 3 secondsModels and indicator displayed.N64X/N84XDisplayAlternatingHeaterconnectionsokay?NOYESCheck AC heater resistance.See See Figure.NO Replace AC heater.YES Replace power board.Check AC heater wires forloose or damaged connector.Resistance38 to 53 Ω?Repair or replace connectors. Ifconnectors cannot be repaired,replace heater.AudibleAlarmN61X/N81X
