18
© 2012 Viking Preferred Service
Diagnostics
Service Tests (continued)
121 Damper operation
Press the refrigerator temperature “+” (up) or “–” (down) keypad to toggle Damper OP (open) or CL (Closed).
note:
When damper is opening or closing it will display–if damper state is unknown. It can also show DP if
damper is moving when initially entering service mode.
131 Mullion heater
Press the refrigerator temperature “+” (up) or “–” (down) keypad to toggle Mullion Heater Off and On.
141 Fresh Food Thermistor
This test will check the temperature form the fresh food thermistor. You will see the actual temperature, OP for
open thermistor, or SH for shorted thermistor.
142 Freezer Thermistor
This test will check the temperature from the freezer thermistor. You will see the actual temperature, OP for
open thermistor, or SH for shorted thermistor.
1 2 1
O F F
Press either button to toggle
through test cycles
Press either button to cycle
Damper OPEN or CLOSED
1 3 1
O F F
Press either button to toggle
through test cycles
Press either button to cycle
Mullion Heater ON or OFF
1 4 1
4 1
Press either button to toggle
through test cycles
Actual temperature in food
compartment, OP or SH
1 4 2
2 8
Press either button to toggle
through test cycles
Actual temperature in freezer
compartment, OP or SH
