Temperature Log Recall Mode - Sub-Zero Wolf BI Series Service Manual

Electronic Control

Temperature Log Recall Mode

The electronic control system logs/stores the average temperature of each individual thermistor every thirty (30) min-
utes, along with any possible event indicators. These thirty-minute periods are referred to as "indexes". Up to two-
hundred forty (240) indexes can be stored for each thermistor, which is five (5) days of temperature history. After
two-hundred forty (240) indexes are stored, each new index bumps the oldest index, with index number "240" being
the oldest thirty minute temperature average. Accessing and viewing this temperature history data in the LCD is
accomplished by initiating Temperature Log Recall Mode.
To initiate Temperature Log Recall Mode, begin with the unit ON and in Diagnostic Mode (See Figure 2-69).
NOTE: If Fault Codes have been logged the control will enter Fault Code Recall Mode instead of Diagnostic Mode.
If this happens touch the ALARM key to shift the electronic control system into Diagnostic Mode.
While in Diagnostic Mode, use a WARMER or COLDER key to toggle through the readings until the desired thermis-
tor location code is displayed (See Figure 2-70) (r = Refrigerator, rE = Refrigerator Evaporator, F = Freezer, FE =
Freezer Evaporator).
NOTE: If "dr", "Cn" or "A", appear, continue to toggle past these codes as it is not possible to enter Temperature
Log Recall Mode for these thermistors.
With the desired thermistor location code displayed, touch and hold the POWER key first, then a WARMER key,
then release both keys (See Figure 2-71); in the LCD will be a temperature reading at left and the Index number at
right.
LIGHTS ICE MAKER MAX ICE
Figure 2-69. Initiate Diagnostic Mode - Touch and Hold Either COLDER Key, Then the POWER Key
LIGHTS ICE MAKER MAX ICE
Figure 2-70. Toggle Thru Readings - Touch WARMER (or COLDER) Key Until Desired Code is Displayed
LIGHTS ICE MAKER MAX ICE
Figure 2-71. With Desired Thermistor Code Displayed, Touch & Hold POWER Key First, then WARMER Key
7040317 - Revision A - September, 2015
Built-In (BI) Series
Built-In (BI) Series
(Continued on next page)
COLDER WARMER
COLDER WARMER
Temperature
COLDER WARMER
(SWS #4380000)
(SWS #4380000)
COLDER WARMER
COLDER WARMER
2nd and 3rd Index Digits
COLDER WARMER
1st Index Digit
2-42
PURE AIR ALARM POWER
PURE AIR ALARM POWER
PURE AIR ALARM POWER