Electronic Testing - Viking VCFB304 Service Notebook

Electronic Testing Mode
Forced Defrost Start (All Freezer Only).
1. Press Activate Controls pad to activate control panel.
2. Simultaneously press and hold Max Ref and Display Off pads for 3 seconds.
Forced Compressor Start
1. Press Activate Controls pad to activate control panel.
2. Simultaneously press and hold Alarm Off pad and Display Off for 3 seconds.
Note: For All Refrigerators, there is a two (2) minute dwell time after the unit has been
turned off. A forced compressor start will NOT initiate until after the time has been met
and the unit is powered on.
Open Thermistor Detect
Alarm sounds and freezer or refrigerator indicator light shows and temperature indicators
4 and 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 conditions have not been corrected,
alarm will sound again.
Holiday Mode Feature for Sabbath Observance
Before the Holiday Mode is engaged, the bale arm of the ice maker needs to be raised
until it clicks into the detent. This turns off the power to the ice maker. (All Freezer
Only)
Mode Entry: To enter Holiday Mode the user must press and hold Activate Controls
and then Display Off for 3 seconds. The control shall beep 3 times and light the 3 right
blue squares to alert the user that Holiday Mode has been entered. When the control
enters Holiday Mode it will disable the interior lights, display (excluding the 3 right land
side lit blue squares), and alarm enunciators.
Power Loss: If in Holiday Mode and the control experiences a Long Power Loss, it will
return to Holiday Mode when power is regained.
Exiting Holiday Mode: To exit Holiday Mode the user will again press and hold
Activate Controls and then Display Off for 3 seconds and 3 beeps shall alert the user the
Holiday Mode has been exited. The control shall return to Normal Mode Once the unit is
back in the Normal Mode, the bale arm of the ice make needs to be pushed downward
until it is no longer in the detent. This will restore power to the ice maker. (All Freezer
Only)

Electronic Testing

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