Wolf Sub-Zero ICB400 Series Service Manual page 33

Electronic Control System
Temperature Log Event Indicators
The diagrams below illustrate possible event indicators that may be observed while in Temperature Log Recall
Mode. (See Figures 3-39 through 3-41)
Figure 3-39. BELL ON Illuminates - Indicates Power Failure / Interruption During that Index Period
Figure 3-40. SERVICE Illuminates - Indicates Unit was switched OFF During that Index Period by Pressing
Figure 3-41. Double Dashes ( - - ) Displayed Instead of Temperature for Several Consecutive Index Periods -
Indicates Bad EEPROM on Control Board. Board Must be Replaced
NOTE: If the unit was in Showroom Mode during any of the 64 indexes, average temperatures will continue to be
logged. No event indicator will appear with these temperatures.
NOTE: If the unit was switched OFF by pressing the POWER key during any of the 64 indexes and there was still
230V AC supplied to the control board, the average temperatures will continue to be logged. This means tempera-
tures would be expected to rise and the SERVICE indicator would be present in all indexes in which the unit was
switched OFF.
NOTE: Temperature Log Recall Mode will end ten (10) seconds after the last key stroke.
7011544 - Revision A - November, 2008
International W ine Storage
International W ine Storage
the POWER Key
3-20
Series
Series
(ICB400)
(ICB400)