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#7040748 - Revision A - September, 2016
Electronic Control System
MODEL UW-24
MODEL UW-24
Diagnostic Mode Alerts
“EE” observed in the left display window during Diagnostic Mode
- The thermistor, or its wiring in the location
indicated by the code at right is open or shorted (See Figure 2-31).
Figure 2-31. “EE” Observed in Diagnostic Mode = Thermistor (or its wiring) Fault in Location Indicated
“EC” observed in the right display window during Diagnostic Mode
- Numbers at left are “Error Codes” (See
Figure 2-32). Error Codes indicate problems logged by specific components. If error codes are logged, they will
appear before temperature readings and can be toggled through with the temperature readings as described on the
previous page. (See Error Code Table below.)
Figure 2-32. Numbers at Left with “EC” at Right = Error Code (See Error Code Table Below)
Wine Storage Error Code Table
CODE INDICATION
05
Upper Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
06
Upper Evaporator Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
07
Lower Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
08
Lower Evaporator Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
10
Upper Cabinet Warm Temperature alarm
11
Upper Cabinet Cold Temperature alarm
12
Lower Cabinet Warm Temperature alarm
13
Lower Cabinet Cold Temperature alarm
15
Sealed System Fault (evap temperature cannot drop 5° in 5 minutes, 3 consecutive valve activations)
Clearing Error Codes
If error codes are observed, a non-flashing service icon will appear on the display when Diagnostic Mode ends, indi-
cating error codes are still logged. To clear the error codes and non-flashing service icon, the problem must be cor-
rected, then with the unit ON, press and hold the ALARM key for 15 seconds. The control will emit a short “beep”
when the error codes is cleared and the service icon will de-energize. (See Figure 2-34)
Figure 2-33. Clear Error Code & Non-flashing Service Icon - Press & Hold ALARM Key for 15 Seconds
Press and hold for 15 seconds
