Possible Event Indicators - Sub-Zero 700TC-3 Service Manual

Integrated
Integrated
Possible Temperature Log Recall Mode Event Indicators
The diagrams below illustrate possible event indicators that may be observed while in Temperature Log Recall
Mode. (See Figures 3-69 through 3-72)
Figure 3-69. "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)
SERVICE
Figure 3-70. SERVICE Annunciator Illuminates - Indicates Unit was switched OFF During that Index Period
Figure 3-71. Bell Illuminates - Indicates Power Failure / Interruption During that Index Period
Figure 3-72. Double Dashes ( - - ) Displayed Instead of Temperature for Several Consecutive Index Periods -
Indicates Bad EEPROM on Control Board. Board Must be Replaced
NOTE: Double dashes will also be observed when in Manual Zone Disable Mode. Only when double dashes are
observed in Temperature Log Recall Mode for several consecutive indexes should the control board be replaced.
NOTE: If Manual Zone Disable Mode has been activated 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 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 115V AC supplied to the control board, the average temperatures will continue to be logged. This means
temperatures would be expected to rise and the SERVICE annunciator 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.
3
3 Series
Series
(700- T ALL)
(700- T ALL)
FREEZER COLDER WARMER
FREEZER
COLDER WARMER
by Pressing UNIT ON/OFF Key
FREEZER COLDER WARMER
FREEZER
COLDER WARMER
3-27
Electronic Control System
ICE
COLDER WARMER REFRIGERATOR
ON/OFF
ICE
REFRIGERATOR
COLDER WARMER
ON/OFF
ICE
COLDER WARMER REFRIGERATOR
ON/OFF
ICE
REFRIGERATOR
COLDER WARMER
ON/OFF
#3758412 - Revision B - December, 2006
UNIT
ON/OFF
ON/OFF
UNIT
ON/OFF
ON/OFF
UNIT
ON/OFF
ON/OFF
UNIT
ON/OFF
ON/OFF