Viking VCSB48, Service Notebook

Page: 15 / 33

15
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.