Wolf Sub-Zero ICB400 Series Service Manual page 47

Electronic Control System
Diagnostic Mode Indicators
If "EE" is observed in left display area during Diagnostic Mode, the thermistor in that location is open or shorted, or
there is a break in that thermistor's wiring
SERVICE
ICE
Figure 3-66. "EE" Observed in Diagnostic Mode = Thermistor Fault in Location Indicated by Code
If "Sr" is observed during Diagnostic Mode, the unit is in Showroom Mode, which was explained earlier in this sec-
tion (See Figure 3-67).
SERVICE
ICE
Figure 3-67. "Sr" Observed While in Diagnostic Mode = Unit is in Showroom Mode
If "EC" is observed in the right display area during Diagnostic Mode, the numbers at left are "Error Codes"
Figure 3-68). Error Codes indicate problems registered by specific components. If error codes are registered, 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
SERVICE
ICE
Figure 3-68. "EC" Observed While in Diagnostic Mode = Error Code
CODE INDICATION
05 Refrig. cabinet thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp's
06 Refrig. evaporator thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp's
50 Excessive Refrigerator Compressor Run
7011544 - Revision A - November, 2008
International W
International W
(See Figure 3-66).
OFF
OFF
below and instructions on
OFF
(See table below & how to clear Error Codes on next Page)
ICB427R Refrigerator Compartment Error Code Table
ine Storage
ine Storage
(ICB400)
(ICB400)
clearing Error Codes
3-34
Series
Series
(See
on next page.)