Component Testing Control Board - Viking VCFF136D Service Manual

Service Diagnostics and Procedures
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power to unit using power
switch before servicing. After servicing, reconnect power using power switch.
Component Testing
The unit has a main control board and UI (dispenser) board that control functions of the respective
refrigerator/freezer compartment. Components can be diagnosed via these boards. With the board accessed
(refer to control board access procedure, page 71 and dispenser board access procedure, page 67), the
following can be measured:
Component Testing–Control Board
Component
Condenser Motor
Defrost Terminator
Evaporator Fan Motor
(120 volt)
Evaporator Fan
Damper
Damper Switch
Refrigerator Lights
Refrigerator Light Switch
(N.C.)
Refrigerator Interlock Switch
(N.O.)
Freezer Light Switch
Freezer Lights
Ice Maker Switch
Ice Maker
Ice Auger
Icemaker Thermistor
Freezer Thermistor
Refrigerator Thermistor
Ice Fan
© 2010 Viking Preferred Service
WARNING
Board Test Point
Control J1-1 (Blue) to J1-8 (White)
Control J1-2 (Brown) to J2-5 (Orange)
Control J1-3 (Black) to J1-8 (white)
Control J6-5 (Black/Yellow) to J6-1 (Black/Green)
Control J1-4 (Red) to J1-7 (Yellow/Red)
Control J1-4 (Red) to J2-4 (Blue/Red)
Control J1-6 (Red/White) neutral to J1-4 (Red) Line
Conditions: Either fresh food door must be
open and power disconnected.
Control J2-1 (Tan/Red) to J1-4 (red).
Conditions: Either fresh food door must be
open and power disconnected
Control J2-10 (Black/Red) to J1-4 (Red)
Control J1-4 (Red) to J2-6 (Gray/White).
Control J1-6 (Red/White) to J2-6 (Gray/White)
Control J2-8 Violet) to J2-2 (Gray)
Control J2-8 (Yellow) to J1-8 (White)
Control J2-9 (Pink) to J1-8 (White)
Control J3-4 (White/Black) to J3-5 (White/Orange)
Control J3-2 (White/Yellow) to J3-5 (White/Orange)
Control J3-1 (White/Blue) to J3-5 (White/Orange)
Control J6-2 (Red/Black) to J6-4(Blue/Black)
Reading
4.7
Open 0 Closed
*Depends on coil temperature
1637
6.54K
2.4K
0 switch closed
switch open
8.8
0 door open
door closed
0 door closed
door open
0 door closed
door open
25.1
0 switch on
switch off
266
4.4
9.31K @ room temperature
9.38K
7.63K
26.8K
38