© 2011 Viking Preferred Service
26
Service Diagnostics and Procedures
Main Control Board Wiring Connections
Pin
Number
Description
Wire Color
CN6-3
Defrost Terminator and
Defrost Heater
Orange
CN6-2
Refrigerator Light Switch
and Refrigerator Light
Red/White
CN6-1
Freezer Light Switch and
Freezer Light
Red/Orange
CN2-10
Line Defrost Terminator
Brown
CN2-9
Line Damper Motor
Yellow/Red
CN2-8
Line Evaporator Fan
Yellow/Black
CN2-5
Neutral Damper Motor,
Evaporator Fan, and
Defrost Heater
White/Black
CN2-4
Neutral Damper Motor,
Evaporator Fan, and
Defrost Heater
White/Black
CN2-3
Neutral Ice Maker and
Solenoid
Tan
CN2-2
Neutral Water Valve
Yellow
CN2-1
Damper Motor NC
Blue/Red
Pin
Number
Description
Wire Color
CH3-1
Refrigerator Thermistor
White/Blue
CH3-2
Freezer Thermistor
White/Yellow
CH3-3
Ambient Thermistor
White/Violet
CH3-4
Thermistor Ground
White/Orange
CN1-4
Neutral PTC Relay and
Condenser Motor
Gray
CN1-3
Line Overload and
Condenser Motor
Blue
CN1-2
Line Power Cord
Red
CN1-1
Neutral Power Cord
White
P1
Compound Ground
Green/Yellow
CN4B-1
+14 VDC Display PCB
Red/Black
CN4B-2
Neutral Display PCB
Yellow/Black
CN4B-3
Ground Display PCB
Black/Green
CH3-1
CH3-2
CH3-3
CH3-4
CN6-3
CN6-2
CN6-1
CN2-10
CN2-9
CN2-8
CN2-5
CN2-4
CN2-3
CN2-2
CN2-1
CN4B-1
CN4B-2
CN4B-3
P-1
CN1-4
CN1-3
CN1-2
CN1-1