Manual Freezer Evaporator Defrost; Initiate Manual Freezer Evaporator Defrost - Sub-Zero Wolf BI Series Service Manual

Electronic Control

Manual Freezer Evaporator Defrost

Manual Freezer Evaporator Defrost was incorporated into the electronic control to assist a customer that may inad-
vertently leave the freezer door ajar causing a heavily frosted evaporator, and may also be utilized by a Service
Technician for servicing and diagnostics.
To initiate manual freezer evaporator defrost the unit must be ON, then touch and hold the ICE MAKER key for five
(5) seconds, at this time the freezer evaporator temperature will be displayed at left in the LCD with the refrigerator
evaporator temperature displayed at right for five (5) seconds (See Figure 2-28), then compartment temperatures
will be displayed (See Figure 2-29).
NOTES:
• Though the refrigerator evaporator temperature is also shown when manual defrost is initiated, only the freezer
evaporator is affected.
• Manual Freezer Evaporator Defrost will not operate if unit is in Sabbath Mode.
• The defrost terminator will not allow power to the defrost heater if the evaporator is above 30°F (1°C).
LIGHTS ICE MAKER MAX ICE
Touch and hold for 5 seconds
Figure 2-28. Initiate Manual Freezer Evaporator Defrost - Touch and Hold ICE MAKER Key for 5 Seconds
LIGHTS ICE MAKER MAX ICE
Figure 2-29. Compartment Temperatures Displayed 5 Seconds after Manual Defrost is Initiated
7040317 - Revision A - September, 2015
Built-In (BI) Series
Built-In (BI) Series
Evaporator Temperatures Displayed for 5 Seconds when Initiated
COLDER WARMER
COLDER WARMER
(SWS #4380000)
(SWS #4380000)
COLDER WARMER
COLDER WARMER
2-16
PURE AIR ALARM POWER
PURE AIR ALARM POWER