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Norcold Refrigerator Error Codes
108 error codes for Norcold refrigerator models. Each links to the full diagnostic procedure from the service manual.
CodeDescription
1AC Heater Error10AC supply is out of range (108-132 VAC).11No energy source in Auto mode.12Power control board and LCD display loose communication.13Thermistor failure; unit is being controlled by backup operating system (BOS).18Unit not able to start.2Service Error3Motor Start Error4Minimum Motor Speed Error5Thermal Cutout of Electronic Unit6DC voltage out of range (10.0V < 15.0V).7Unit in manual DC mode8LOW DC (1) Error9LOW DC (2) ErrorANo AC power available to the refrigerator; AC cord not plugged into power board…A1LP Gas ignition failure on initial refrigerator start-up; burner ignition…A2LP Gas re-ignition failure during normal gas operation; gas fails to re-ignite…A3Fresh food compartment door ajar; door has been open and interior light on for…A4AC mode selected but AC power is not available; fault external to refrigerator…A5AC input voltage too low; fault external to refrigerator controls.MyPros+ Max
Get the full diagnostic procedure for any Norcold refrigerator error code.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts
- Verified part numbers when replacement is required
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A6AC input voltage too high; fault external to refrigerator controls.A7DC input voltage too low; fault external to refrigerator controlsA8DC input voltage too high; fault external to refrigerator controls.AC HEAC heaters failed openAC HIAC voltage high (above 132 Vac) on N64X/N84X models.AC LOAC voltage low (below 108 Vac) on N64X/N84X models.AC rEAC heater relay contacts stuck in the closed position; AC current to heaters is…Blank displayRefrigerator does not turn on; no display shown.Blink 1AC heating element faultBlink 10Loss of communication between user interface (controls) and main control board…Blink 2Internal control fault detected by main control board (power board).Blink 3Current limiter circuit on main control board (power board) is open.Blink 4AC heating element relay on main control board stuck in closed/activated…Blink 5Flame detected at burner when there should be none; gas valve mechanically…Blink 8DC supply voltage to refrigerator is too low.Blink 9DC supply voltage to refrigerator is too high.CDC voltage to the refrigerator is too low (below 10.5 Vdc).C1Burner failed ignition and DC heater failed; 3-Way models only in AUTO mode…C2AC heater output fault; control senses AC heater current when the AC heater…C3DC heater output fault; control senses DC heater current when the DC heater…C4DC heater failed open; DC voltage is being supplied to the heater but the…C5Back-Up Operating System activated; thermistor has become inoperable, power…C6AC heater failed open; AC voltage is being supplied to heater but AC heater is…C7Flame sense circuit failure.C8AC heater failed for current out-of-tolerance.C9DC heater failed for current out-of-tolerance (3-Way models only).CHECKRed CHECK lamp on eyebrow board indicates ignition failuredFresh food compartment door open for more than 2 minutes on N62X/N82X models.d1Internal control failure; fault within the control board.dc ErDC board has lost communication with the power board (N64X/N84X 3-way models…dc HEDC Board sensed the DC heater current to be too lowdc HIDC voltage input to power board is above 15.4 volts DC.dc LODC voltage lowdc rEDC heater relay contacts of relay K1 on the DC Board are stuck closeddrThe display board has sensed that one or both fresh food doors have been open…EDC voltage to the refrigerator is too high (above 15.4 Vdc).E1Defective fresh food compartment thermistor cycle.E2Defective freezer compartment thermistor cycle.E3Voltage is outside the shutdown setting.E4The door has been open for more than two (2) minutes.FBurner failed to ignite or reignite (gas lock-out) on N61X/N81X modelsFL --Gas valve is mechanically stuck open and Power Board sensed a flame present…Flash 1AC heater failureFlash 10Loss of communication between the user interface (controls) and the main…Flash 2Internal control failure detected by the main control board (power board).Flash 3Fault within the refrigerator electronic controls (N7V/N8VFlash 4AC heater relay on the main control board (power board) is stuck closed…Flash 5Flame detected at the burner when there should be noneFlash 6Problem relating to the DC heater (3-way models only).Flash 7Fault within the refrigerator electronic controls (3-way models only).Flash 8DC input voltage to the refrigerator is too low.Flash 9DC input voltage to the refrigerator is too high.Flashing Temp SettingThermistor failure; controls have shifted to Backup Operating System (BOS) mode.Flashing Temperature SettingThe thermistor has been sensed as inoperable; temperature is being controlled…Flashing Temperature Setting IconElectronic controls sensed the fin thermistor is inoperableHAC heater failed open on N61X/N81X models (ON LED flashes off 3 times every 3…HI dcThe DC input voltage to the refrigerator is too high (alternately flashes "HI"…L1 oPHigh temperature limit switch is open or disconnectedLI oPThe high temperature limit switch is open.Lo dcPower Board determined DC input voltage is less than 10.5 VDCLo dc (GAS mode)The refrigerator attempted to ignite or re-ignite the burner when DC input…Lo dc (with alarm, LP Gas mode)Refrigerator attempted to ignite or re-ignite the burner when DC input voltage…Lo dc (with alarm)DC voltage to the refrigerator is less than 8.5 VDCnNo cooling detected by the controls on N61X/N81X models (ON LED flashes off 5…no ACPower Board sensed the AC input voltage to be less than 85VACno AC, no FLCombination faultno coNo cooling detected by the controls on N62X/N82X and N64X/N84X models.no dtNo communication between the user interface (controls) and the main control…no FLPower Board was not able to detect a flame present at the burneroP LIThe temperature monitor control (TMC) limit switch is open or not connected to…Orange LED OnCondenser fan error detected.rAC relay stuck closed on N62X/N82X models (alternate display code).Red LED Blinking (2-way valve)2-way valve error detected.Red LED Blinking (Ambient Thermistor)Ambient thermistor error detected.Red LED Blinking (Cabinet Thermistor)Cabinet thermistor error detected.Red LED Blinking (Freezer Thermistor)Freezer thermistor error detected.Red LED Blinking (Thermal Cut-out)Compressor thermal cut-out has been triggered.Red LED Blinking (Voltage)Input voltage is out of acceptable range.Red LED OnCabinet fan error detected.SFlame sense circuit failure on N62X/N82X models.Solid REDSelected heat source input for a particular mode is not available (AC voltage…SrFlame sensing circuit malfunctionTemperature setting flashingThermistor detected as non-functional; backup operating system (BOS) is…Thermistor Fail (Amber blink off every 20 sec)Refrigerator operating on propane gas; thermistor detected as non-functioning…Thermistor Fail (Green blink off every 20 sec)Refrigerator operating on AC power; thermistor detected as non-functioning…Thermistor Fail (Snowflakes flash on/off)Thermistor detected as non-functioning; backup operating system controlling…Thermistor Fail (Temp setting flashes)Thermistor detected as non-functioning; backup operating system controlling…Thermistor Fault (flashing COLD snowflake)Electronic controls sensed the fin thermistor is inoperable (open or shorted)