Sub-Zero UC-24 series Service Manual page 19

Under Counter (UC-24) Series
POSSIBLE ERROR INDICATORS
The diagrams on this page illustration what a customers may see on the LCD if a problem/error exists with the unit.
NOTE: Error code must be cleared from memory after problems are corrected, otherwise a non-flashing "SERVICE"
will display constant on the LCD. See "Clearing Non-Flashing "SERVICE" and Error Codes" later in this section.
"EE" Displayed at Left & "SERVICE" Flashing = Freezer Compartment Thermistor (or its Wiring) Fault
"EE" Displayed at Right & "SERVICE" Flashing = Refrigerator Compartment Thermistor (or its Wiring) Fault
Service Flashing = Several 100% run periods, the door was not open during last 100% run period, and zone
temperature not able to fall half way between set point and low off-set.
"SERVICE" Steady, not Flashing = Error Codes Observed in Diagnostic Mode, but not Cleared
" - - " (Double Dashes) Displayed = Model Configuration was not Performed
Service Flashing = Evaporator Thermistor (or its Wiring) Fault
Electronic Control System
Figure 3-26.
Figure 3-27.
Figure 3-28.
Figure 3-29.
Figure 3-30.
Figure 3-31.
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#7003933 - Revision B - November, 2007