Electronic Control System
3-44
#7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
Manual Component Activation Mode
Manual Component Activation Mode allows a Service Technician to activate and toggle through various unit func-
tions while observing the corresponding function codes and associated temperatures in the LCD. This mode also
allows for voltage checks at the activated components without having to wait for the zone to call for cooling.
To initiate Manual Component Activation Mode, the unit must first be ON and in Diagnostic Mode (See Figure 3-87).
Then, keeping in mind that the components can be activated in only one zone at a time, press and hold the desired
zone’s COLDER key and the POWER key for ten (10) seconds (See Figures 3-88 and 3-89), at which time all cool-
ing functions will stop; the letters “OF” and “F” will appear in the LCD, and all icons in the LCD will illuminate.
The chosen zone’s components can now be forced to ON for five (5) minutes, or back to the OFF states using the
WARMER or COLDER keys, with the WARMER key activating the next step (component), while the COLDER key
would activate a previous step (component). (See Manual Component Activation Tables on next page).
NOTE:
• All temperatures displayed are current, real-time temperatures without weighted averaging or offsets.
• Pressing any key (other than the POWER or ALARM) during this mode restarts the five (5) minute timer.
• Pressing the POWER key during this mode forces the control back into Diagnostic Mode.
• Pressing the ALARM key will exit the mode, and return the unit to normal operation.
Figure 3-89. Initiate Manual Component Activation Mode for Freezer Components -
While in Diagnostic Mode, Press and Hold Freezer COLDER and POWER for ten (10) seconds,
Then Press Freezer WARMER or COLDER Key to Activate Components as Indicated in Table
Figure 3-87. Initiate Diagnostic Mode First - Press and Hold Either COLDER Key, Then the POWER Key
Figure 3-88. Initiate Manual Component Activation Mode for Refrigerator Components -
While in Diagnostic Mode, Press and Hold Refrigerator COLDER and POWER for ten (10) seconds,
Then Press Refrigerator WARMER or COLDER Key to Activate Components as Indicated in Table
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