Wolf Sub-Zero ICB400 Series Service Manual page 48

International W
International W
Clearing Error Codes - If Error Codes are observed in Diagnostic Mode, a non-flashing SERVICE indicator will
appear on the LCD when Diagnostic Mode ends, indicating error codes are still stored
non-flashing SERVICE icon and the error codes, the problem must be corrected and the unit must be ON, then the
door ajar ALARM key must be pressed and held for fifteen (15) seconds. The control will emit a short "beep" when
the SERVICE indicator and error codes are cleared.
SERVICE
Figure 3-69. Non-flashing SERVICE after Diagnostic Mode = Error Codes are Stored/Not Cleared
BEEP!
Figure 3-70. Clear Error Code, Press & Hold ALARM Key for 15 Seconds
Manual Component Activation Mode
Manual Component Activation Mode energizes the cooling system for five (5) minutes, allowing a Service Technician
to check for proper voltage readings at activated components without having to wait for the zone to call for cooling.
To initiate Manual Component Activation Mode the unit must be ON, then press and hold the COLDER key and the
POWER key for ten (10) seconds
ture will be displayed at left in the LCD and at right will be the thermistor location code.
NOTE: If a COLDER and the POWER keys are pressed and held for less than ten (10) seconds, Diagnostic Mode
will be initiated. This was covered earlier in the section.
NOTE: It is possible to toggle through the other temperature readings as in Diagnostic Mode, but in this case the
temperature readings will last for five (5) minutes rather than twenty (20) seconds.
NOTE: The compressor overload could prevent the compressor from energizing.
NOTE: Manual Component Activation Mode will end five (5) minutes after it is initiated. It is possible to end this five
(5) minute run time and return to normal operation by switching the unit OFF then back ON. If this is done, note that
the electronic control will observe a 3 minute minimum compressor OFF time when the unit is switched back ON.
This is to protect the compressor and its electricals.
SERVICE
ICE
ine Storage
ine Storage
(See Figure 3-71). All cooling functions will begin and the compartment tempera-
OFF
Press and hold for 10 seconds
Figure 3-71. Initiate Manual Component Activation Mode,
Press and Hold COLDER Key and POWER Key for 10 Seconds
Series
Series
(ICB400)
(ICB400)
(See Figure 3-70)
Press and hold for 15 seconds
3-35
Electronic Control System
(See Figure 3-69). To clear a
7011544 - Revision A - November, 2008