Manual Component Activation Mode - Sub-Zero 424HAG/O-2 Service Manual

Wine Storage
Wine Storage
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 (See Figure 3-69). To clear a non-flashing SERVICE
icon and the error codes, the problem must be corrected and the unit must be ON, then the door ajar alarm bell
ON/OFF 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. (See Figure 3-70)
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 Bell (

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
UNIT ON/OFF key for ten (10) seconds (See Figure 3-71). All cooling functions will begin and the compartment
temperature will be displayed at left in the LCD and at right will be the thermistor location code.
NOTE: If a COLDER and the UNIT ON/OFF 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
Press and Hold COLDER Key and UNIT ON/OFF Key for 10 Seconds
(400-
(400-
OFF
Press and hold for 10 seconds
Figure 3-71. Initiate Manual Component Activation Mode -
Series
Series
2
2
)
)
REFRIGERATOR
COLDER
REFRIGERATOR
COLDER
Press and hold for 15 seconds
) ON/OFF Key for 15 Seconds
ON/OFF
REFRIGERATOR
COLDER
3-35
Electronic Control System
UNIT
WARMER
ON/OFF
ON/OFF
UNIT
WARMER
ON/OFF
ON/OFF
UNIT
WARMER
ON/OFF
ON/OFF
#3758410 - Revision C - May, 2014