Fault Code Recall Mode - Sub-Zero Wolf BI Series Service Manual

Built-In (BI) Series
Built-In (BI) Series

Fault Code Recall Mode

Fault Code Recall Mode allows a Service Technician to view historical data that the electronic control system may
have stored if specific components experienced or detected problems. This data can be displayed in a code format
in the LCD in this mode, with the data storage device capable of storing up to fifty (50) fault codes. If more then fifty
(50) fault codes are detected, each new fault code will bump the oldest fault code.
NOTE: As mentioned on the preceding page, The key strokes to initiate Fault Code Recall Mode and Diagnostic
Mode are the same. If the electronic control has not recorded any Fault Codes, then the key strokes listed below
will initiate Diagnostic Mode, which was explained on a preceding page.
To initiate Fault Code Recall Mode, the unit must be ON, then touch and hold either COLDER key, and touch the
POWER key, then release both keys (See Figure 2-67). If any Fault Codes were logged they will be displayed in the
LCD at this time. To see if multiple Fault Codes are stored, touch a WARMER or COLDER key to toggle through the
codes (See Figure 2-68 and the Fault Code Table with LCD Correlation Diagram on following pages).
NOTE:
• Do not touch and hold the COLDER and POWER keys for more than ten (10) seconds, as this will initiate Manual
Zone Component Activation Mode, which is covered later in the section.
• Fault Code Recall Mode will end ten (10) seconds after the last key stroke.
• To clear fault codes the problem must be corrected, then touch the ALARM key for fifteen (15) seconds. Failure to
do this will cause the Service icon to display steady.
• If Fault Codes are present but the desire is to view current temperature readings from the thermistors (Diagnostic
Mode), then touch the ALARM key; this will shift the electronic control system into Diagnostic Mode.
LIGHTS ICE MAKER MAX ICE
Figure 2-67. Initiate Fault Code Recall Mode - Touch and Hold Either COLDER Key, Then the POWER Key
(Example Shown: "30 8 30", Service Wrench Flashing and Alarm Chiming = Water Valve not Opened but
LIGHTS ICE MAKER MAX ICE
Figure 2-68. Touch WARMER (or COLDER) Key to Toggle Through Fault Codes
(Example Shown: "10 2 02" with Service Wrench Steady = Freezer Cabinet Thermistor Unstable)
(See the Fault Code Table with LCD Correlation Diagram on following pages)
(See the Fault Code Troubleshooting Tables in Troubleshooting Guide section of this manual)
(SWS #4380000)
(SWS #4380000)
COLDER WARMER
Water Detected Passing Through)
COLDER WARMER
COLDER WARMER
COLDER WARMER
2-39
Electronic Control
PURE AIR ALARM
PURE AIR ALARM
7040317 - Revision A - September, 2015
POWER
POWER