Viking DFSB483D, Service Notebook

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Mode A Functions (con’t)
Temperature Offset Calibration
(See page 24, Item D)
Offset amount adjusts temperatures for
refrigerator cut-ins and cut-outs by the amount
of offset. The chart (item D page 24) shows the
indicator and the amount of offset from the
factory default setting.
•
Setting Refrigerator Temperature Offset
Press Ref Temp pad. Refrigerator indicator
and one indicator will glow. Press Higher
Temp pad to move offset to the next warmer
setting. Press Lower Temp pad to move
offset to the next colder setting. Factory
default refrigerator offset is –4.
•
Setting Freezer Temperature Offset
Press Freezer Temp pad. Freezer
temperature indicator and one indicator will
glow. Press
Higher Temp pad to move
offset to the next warmer setting. Press
Lower Temp pad to move offset to the next
colder setting. Factory default freezer offset
is 0.
Defrost Mode Selection
Toggle Hidden Button (*) pad to select adaptive
or conventional defrost mode. Hidden Button
(*) indicator glows when adaptive defrost has
been selected. If Hidden Button (*) indicator is
off, conventional defrost is selected.
Conventional defrost uses 8 hour CRTD value.
(
CRTD –Continuous Run Time Defrost. )
Forced Defrost
Defrost can be forced to start by pressing and
holding the
Alarm Off pad for 3 seconds.
Program changes will be saved permanently in
EEPROM and program mode will exit to Run
Mode.
Forced Pull Down
Compressor start can be forced by pressing and
holding Max Frz pad for 3 seconds. Program
changes will be saved permanently in EEPROM.
Compressor, evaporator fan and condenser fan
will come on.
Exiting Program Mode
Press Display On pad for 3 seconds to exit
Program Mode. Tone will sound three times.
Changes made in Program Mode will be
permanently saved in EEPROM.
Note: If no pad is pressed for 10 minutes,
Program Mode will be automatically exited.
However, no changes will be saved if Program
Mode exits automatically.
Electronic Testing
Electronic Testing Mode
Forced Defrost Start
1. Press Display On pad to activate control
panel.
2. Simultaneously press and hold Max Ref and
Display Off pads for 3 seconds.
Forced Compressor Start
1. Press Display On pad to activate control
panel.
2. Simultaneously press and hold Max Frz pad
and Display Off pad for 3 seconds.
Open Thermistor Detect
Alarm sounds and freezer or refrigerator
indicator light shows and temperature indicators
4 through 7 will turn on in sequence if either
thermistor circuit opens. Refer to Temperature
Control Operation Section and Electronic
Testing Section.
1. Press
Alarm Off pad to turn off alarm.
2. Alarm will reset for normal operation. If
condition has not been corrected, alarm will
sound again.
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