Freezer Thermistor; Water Valve - Viking VCBB536 Service Manual

Service Diagnostics and Procedures–Disassembly
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power to unit using power
switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure
correct earth ground and polarization. After servicing, reconnect power using power switch.

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).
The freezer thermistor is now accessible. Remove
screws and disconnect wiring.
In order to check the Thermistor, refer to page 16
to Access the Service Mode and page 17 on
reading the Binary Code to check the thermistor.
If you are experiencing the scrolling temp bars
described on page 31 then the Thermistor needs
to be removed and tested.
© 2009 Viking Preferred Service
WARNING

Water Valve

The unit uses a 120VAC 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
Freezer
Thermistor
, and 120VAC.
Ω
52