Norcold N81X User Manual
ii
Refrigerator Service Manual
www.norcold.com/cda
N6XX/N8XX Models
AUTO Mode ...................................................................... 52
No AC Power ..................................................................... 52
AC Power Restored .......................................................... 52
No AC and No Flame ........................................................ 52
GAS Mode ......................................................................... 52
No Flame ........................................................................... 52
No AC Power ..................................................................... 52
AC Power Restored .......................................................... 52
No AC and No Flame ........................................................ 52
GAS Mode ......................................................................... 52
No Flame ........................................................................... 52
Backup Operating System .................................................. 52
“Gas Lock-Out” ................................................................... 52
N62X/N82X Optical Control Assembly ............................... 53
“Gas Lock-Out” ................................................................... 52
N62X/N82X Optical Control Assembly ............................... 53
Front Box ........................................................................... 53
Removal and Installation of Optical Control Assembly ..... 53
Removal and Installation of Optical Control Assembly ..... 53
Modes of Operation ............................................................ 54
AUTO Mode ...................................................................... 54
AUTO AC Operation ......................................................... 54
AUTO LP Gas Operation .................................................. 54
Shift from AUTO LP GAS to AUTO AC ............................. 54
No AC Power and No Flame ............................................. 54
Troubleshooting a "F"/"no" "FL" and "A"/"no" "AC" Faults 54
AC-Manual Mode .............................................................. 54
LP Gas–Manual Mode ...................................................... 54
No AC Power or Loss of AC Power .................................. 55
Troubleshooting a "A"/"no" "AC" Fault .............................. 55
AC Power Restored .......................................................... 55
Flame Fails to Ignite or Flame Goes Out ......................... 55
Clearing "Gas Lock-Out" ................................................... 55
Troubleshooting a "F"/"no" "FL" Fault ............................... 55
AUTO AC Operation ......................................................... 54
AUTO LP Gas Operation .................................................. 54
Shift from AUTO LP GAS to AUTO AC ............................. 54
No AC Power and No Flame ............................................. 54
Troubleshooting a "F"/"no" "FL" and "A"/"no" "AC" Faults 54
AC-Manual Mode .............................................................. 54
LP Gas–Manual Mode ...................................................... 54
No AC Power or Loss of AC Power .................................. 55
Troubleshooting a "A"/"no" "AC" Fault .............................. 55
AC Power Restored .......................................................... 55
Flame Fails to Ignite or Flame Goes Out ......................... 55
Clearing "Gas Lock-Out" ................................................... 55
Troubleshooting a "F"/"no" "FL" Fault ............................... 55
N64X/N84X Optical Control Assembly ............................... 56
Front Box ........................................................................... 56
Removal and Installation of Optical Control Assembly ..... 56
Removal and Installation of Optical Control Assembly ..... 56
Modes of Operation ............................................................ 57
AUTO ................................................................................ 57
AUTO AC Operation ......................................................... 57
AUTO LP Operation .......................................................... 57
Shift from AUTO LP GAS to AUTO AC ............................. 57
No AC Power and No Flame ............................................. 57
Shift from AUTO LP GAS to AUTO AC ............................. 57
Troubleshooting No Flame and No AC Faults .................. 57
AUTO DC Operation – 3-Way Units Only ......................... 58
AUTO AC Operation ......................................................... 57
AUTO LP Operation .......................................................... 57
Shift from AUTO LP GAS to AUTO AC ............................. 57
No AC Power and No Flame ............................................. 57
Shift from AUTO LP GAS to AUTO AC ............................. 57
Troubleshooting No Flame and No AC Faults .................. 57
AUTO DC Operation – 3-Way Units Only ......................... 58
AC-Manual Mode ................................................................ 58
No AC Power or Loss of AC Power .................................. 58
AC Power Restored .......................................................... 58
Troubleshooting "no" "AC" Fault ....................................... 58
AC Power Restored .......................................................... 58
Troubleshooting "no" "AC" Fault ....................................... 58
LP-Manual Mode ................................................................. 59
Flame Fails to Ignite or Flame Goes Out ......................... 59
DC-Manual Mode ................................................................ 59
No DC Power to DC Heater Circuit .................................. 59
Diagnostic Mode — Models N62X/N82X -------------- 60
Diagnostic Mode ................................................................. 60
Accessing the Diagnostic Mode ....................................... 60
Changing Screens ............................................................ 60
Exiting the Diagnostic Mode ............................................. 60
Screens and Diagnostic Segments Information ............... 61
Changing Screens ............................................................ 60
Exiting the Diagnostic Mode ............................................. 60
Screens and Diagnostic Segments Information ............... 61
Diagnostic Mode — Models N64X/N84X -------------- 63
Diagnostic Mode ................................................................. 63
Accessing the Diagnostic Mode ....................................... 63
Changing Screens ............................................................ 63
Exiting the Diagnostic Mode ............................................. 63
Changing Screens ............................................................ 63
Exiting the Diagnostic Mode ............................................. 63
Screens and Diagnostic Segments Information ................. 64
Ice Maker -------------------------------------------------------- 66
Wire Harness ...................................................................... 66
Fill Tube .............................................................................. 66
Water Valve ......................................................................... 66
Specifications ...................................................................... 66
Replacing the Ice maker ..................................................... 67
Ice Maker Troubleshooting Chart ....................................... 67
Cycle Test ........................................................................... 68
Water Fill Adjustment .......................................................... 69
Fill Tube .............................................................................. 66
Water Valve ......................................................................... 66
Specifications ...................................................................... 66
Replacing the Ice maker ..................................................... 67
Ice Maker Troubleshooting Chart ....................................... 67
Cycle Test ........................................................................... 68
Water Fill Adjustment .......................................................... 69
Low Ice Yield ....................................................................... 69
Water Valve Operation Test ................................................ 69
Water Valve Solenoid Resistance ...................................... 69
Mold Heater Resistance Check .......................................... 70
Checking Voltage at Motor Terminals ................................. 70
Winterizing the Ice Maker Water ........................................ 70
N64X IM/N84XIM – Wiring Pictorial for Ice Maker Wired to
Refrigerator AC Cord .......................................................... 70
N64X IM/N84XIM – Wiring Schematic for Ice Maker Wired to
Refrigerator AC Cord .......................................................... 70
N64X IM/N84XIM – Wiring Schematic for Ice Maker Wired to
White AC Power Cord ......................................................... 72
N64X IM/N84XIM – Wiring Pictorial for Ice Maker Wired to
White AC Power Cord ......................................................... 72
Water Valve Operation Test ................................................ 69
Water Valve Solenoid Resistance ...................................... 69
Mold Heater Resistance Check .......................................... 70
Checking Voltage at Motor Terminals ................................. 70
Winterizing the Ice Maker Water ........................................ 70
N64X IM/N84XIM – Wiring Pictorial for Ice Maker Wired to
Refrigerator AC Cord .......................................................... 70
N64X IM/N84XIM – Wiring Schematic for Ice Maker Wired to
Refrigerator AC Cord .......................................................... 70
N64X IM/N84XIM – Wiring Schematic for Ice Maker Wired to
White AC Power Cord ......................................................... 72
N64X IM/N84XIM – Wiring Pictorial for Ice Maker Wired to
White AC Power Cord ......................................................... 72