Temperature Log Event Indicators - Sub-Zero 424HAG/O-2 Service Manual

Electronic Control System
Wine Storage Series
Wine Storage Series
2
2
(400- )
(400- )

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
UNIT ON/OFF Key
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 UNIT ON/OFF key during any of the 64 indexes and there was
still 115V AC supplied to the control board, the average temperatures will continue to be logged. This means tem-
peratures 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.
3-20
#3758410 - Revision C - May, 2014