Disassembly
28
©2012 Viking Preferred Service
WARNING
!
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless
test procedures require power to be connected. Ensure all ground wires are connected before certifying unit as
repaired and/or operational.
board. Unplug the wire and check for continuity
between the brown wire and the black wire at
E10. In the defrost cycle, this circuit will supply
Line voltage to the defrost relay.
To access the defrost terminator, open freezer
door and remove (see Evaporator Fan Access
section, Page 26). Remove ice maker (see
Access Ice Maker Module, Motor and Support
section, Page 23) remove evaporator fan cover
and back wall. The defrost terminator is clipped
to the evaporator and is now accessible.
Freezer Thermistor
The freezer thermistor is a device that reads
freezer temperatures. The temperature of the
freezer is measured and the thermistor cycles
the compressor on and off to achieve the
freezer setting selected by the end user.
To access the freezer thermistor, open and
remove freezer door (see Evaporator Fan
Access section, Page 26). The freezer
thermistor is now accessible. Remove screws
and disconnect wiring.
Freezer
Thermistor
In order to check the Thermistor, refer to
Page 30 and Access Service Mode A to
check the unfiltered thermistor temperature
reading.
If you are experiencing the "oPn" in your
display along with "FREEZER" described on
.Page 40, then the Thermistor needs to be
removed and tested.
Water Valve
The unit uses a 120 VAC 35 watt valve to
supply water to the ice maker.
To access, remove the lower access panel
and the valve is accessible on the left hand
side. To check the valve, ensure water
supply, verify coil resistance approximately
192.2 Ω, and 120 VAC.