NORCOLD Service Manual Models N620/21 N640/41 N640-IM/41-IM N820/21 N840/41

For models N620 and N621 6 cu.ft., 2-way, R.V. refrigerators.
For models N640 and N641 6 cu.ft., 2-way or 3-way, R.V. refrigerators.
For models N640-IM and N641-IM 6 cu.ft., 2 way or 3-way, R.V. refrigerators with ice maker.
For models N820 and N821 8 cu.ft., 2-way, R.V. refrigerators.
For models N840 and N841 8 cu.ft., 2-way or 3-way, R.V. refrigerators.
For models N840-IM and N841-IM 8 cu.ft., 2-way or 3-way, R.V. refrigerators with ice maker.

These model numbers are 2-way refrigerators. The model numbers of 3-way refrigerators include “.3”.

Table of Contents
Introduction
Safety Awareness
Safety Instructions
Specifications
Supply Voltage, Fuse, and Wire Size Requirements
Operating Requirements
Heater Specifications
Other Current Draws
Ventilation Requirements
Propane Gas Components
Examine the Gas Supply System for Leaks
Electrical Components
Operating the Refrigerator Controls (models N620, N621, N820, and N821)
Operating the Refrigerator Controls (models N640, N641, N640-IM, N641-IM, N840, N841,N840-IM,and N841-IM)
Backup Operating System
Fault Codes (models N620, N621, N820, and N821)
Fault Codes (models N640, N641, N640-IM, N641-IM, N840, N841,N840-IM,and N841-IM)
Troubleshooting
No Display on Display Panel
Propane Gas ignition Failure
Fresh Food Compartment Door Ajar
AC Power Not Available
AC Voltage Too Low
AC Voltage Too High
DC Voltage Too Low
DC Voltage Too High
AC Heater Output Failure
DC Heater Output Failure
DC Heater Failed Open
AC Heater Failed Open
Flame Sense Circuit Failure
Back Up Operating System
Control Diagnostic Function (models N620, N621, N820, and N821)
Control Diagnostic function (models N640, N641, N640-IM, N641-IM, N840, N841,N840-IM,and N841-IM)
Ice Maker (models N640-IM, N641-IM, N840-IM and N841-IM)
Ice Maker Specifications
Common Problems and Solutions
Trouble Shooting
Ice Maker Does Not Make Ice
Refrigerator Maintenance
Gas Flame Appearance
Remove and Clean the Burner Orifice
Diagnosing Cooling Problems
Fuse Replacement
Remove the Refrigerator
Reinstall the Refrigerator
Wiring Pictorial
Wiring Diagram .
Ice Maker Wiring Pictorial and Diagram (models N640-IM, N641-IM, N840-IM and N841-IM)
Please download here
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