Sub-Zero 700-3 BASE, Technical & Service Manual

Page: 36 / 114

Electronic Control System
Integrated
(700-
3
BASE)
Series
3-24
#3758424 - Revision B - December, 2005
Figure 3-53. SERVICE Illuminates - Indicates Unit was switched OFF During that Index Period by Pressing
UNIT ON/OFF Key
UNIT ICE
REFRIGERATOR
ON/OFF
ON/OFF
ON/OFF
WARMER COLDER
FREEZER
WARMER COLDER
SERVICE
Figure 3-54. Bell Illuminates - Indicates Power Failure / Interruption During that Index Period
UNIT ICE
REFRIGERATOR
ON/OFF
ON/OFF
ON/OFF
WARMER COLDER
FREEZER
WARMER COLDER
NOTE: If the unit was in Showroom Mode during any of the 168 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 168 indexes and there
was still power 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 icon would be present in all indexes in which the unit was
OFF.
NOTE: Temperature Log Recall Mode will end 20 seconds after the last key stroke.
Temperature Log Event Indicators
The diagrams below illustrate possible event indicators that may be observed while in Temperature Log Recall
Mode. (See Figures 3-50 through 3-52 and Temperature Log Index Chart on next page))
Figure 3-52. “bl” Indicates Index is “blank” - No Temperature has Been Logged Yet
(Only possible within first 14 days of unit operation, or after new control board is installed during service)
UNIT ICE
REFRIGERATOR
ON/OFF
ON/OFF
ON/OFF
WARMER COLDER
FREEZER
WARMER COLDER