Sub-Zero Sub-Zero BI series User manual

Electronic Control System
3-31 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
Monitor Compressor Run Duration, Displays If Service is Needed
The microprocessor observes the changing state of the compressor relays on the control board to determine the
length of compressor run time (See Figure 3-50). Other than during initial pull down, if a compressor runs 100%
(Freezer = 6 hours / Refrigerator = 4 hours), five consecutive times, a fault code is logged, defrost is initiated, and
the service icon will flash. If approximately twenty-four (24) hours worth of 100% run periods occur, and the com-
partment temperature does not fall to at least the average of the set point and low off-set temperature (and the door
is not opened during the last run period), then the service icon will flash and the alarm will chime (See Figure 3-51).
NOTES:
• If the unit is ever switched OFF then back ON, compressors will not energize for at least three (3) minutes. This
minimum OFF time is used to protect the compressor and its electricals.
• To clear error indicators and Fault Codes the problem must be corrected, then press the ALARM key for fifteen
(15) seconds. Failure to clear Fault Codes will result in the highest priority error indicator reappearing in the LCD
when the unit is
switched back ON.
Figure 3-50. Signal Trace Schematic: Monitoring Compressor Run Times
P17
P1
P18
P9
P8
1
6
P16
P3
P5
1
P14
P15
LIGHTS
MAIN
L1L1 COMP2
HTR
DEFROST
COMP1
NEUTRAL
1146 5 83
P2
9
P7
P6
MAIN
CONTROL
BOARD
DRAWER LIGHTS
M
IM
CONDENSER FAN MOTOR
WHITE/RED
TAN
PINK
160 Ω
WHITE
WHITE
WHITE
WHITE
WHITE
TAN/WHITE
REFRIGERATOR LIGHTS
AIR FILTER LIGHT
FREEZER LIGHTS
FILL-TUBE HEATER2300-2900 Ω
ORANGE/BLACK
RED/WHITE
ORANGE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
STARTING RELAY
WHITE
WHITE
REFRIGERATOR
COMPRESSOR
STARTING RELAY
WHITE
FREEZER COMPRESSOR
PURPLE
GRAY
DEFROST
TERMINATOR
N.C.
GRAY/WHITE
WHITE/BLUE
BLUE
WHITE
PURPLE
GRAY
RED
YELLOW
WHITE/BLUE
N.C.
BLUE
ORANGE
YELLOW
YELLOW
ORANGE/BLACK
BROWN
YELLOW
REFRIGERATOR
LIGHT
TERMINATOR
FREEZER LIGHT
TERMINATOR
FZ DOOR SWITCH
REF DOOR SWITCH
WHITE/BLUE
WHITE/RED
PINK
WATER FILTER SW
N.O.
RED
RED/WHITE
TAN
TAN/WHITE
BLACK 60 CYCLES
115 VOLTS
L1 NEUTRAL
WATER VALVE
WHITE
HIGH VOLTAGE
DEF HEATER27.9-30.9 Ω
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-51. the Service Icon Flashing & Alarm Chiming = Service Needed Immediately
Power to compressors
monitored; fault code
logged if 100% run
observed and service
icon appears; if sever-
al 100% runs occur,
service icon flashes
and alarm chimes

Electronic Control System
3-32
#7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-52. Pure Air Icon Flashing = Air Purifier Components need to be Replaced.
After Replacing Filter Cartridge, Press PURE AIR Key for 5 Seconds to Reset Timer
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-53. Water Filter Icon Appears = Water Filter need to be Replaced.
After Replacing Filter, Press Filter Reset Button behind the Unit Grille for 5 Seconds to Reset Counters
POSSIBLE INSTRUCTION AND ERROR INDICATORS
The diagrams on these pages illustrate what a customer may see in the LCD if the appliance needs attention.
NOTES:
• To clear instruction indicators (See Figures 3-52 & 3-53) and restart the appropriate timer, the instructions must be
followed, then press the appropriate key or reset button as described.
• For thermistor errors described below (See Figures 3-54 & 3-55): Thermistors can be tested by submersing them
in a glass of ice water for approximately five (5) minutes, then checking for 30,000 to 33,000 ohms.
• To clear error indicators and Fault Codes (See Figures 3-54 to 3-59) the problem must be corrected, then press
the ALARM key for fifteen (15) seconds (See Figure 3-60). Failure to clear Fault Codes will result in the highest
priority error indicator reappearing in the LCD when the unit is switched back ON.
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-54. “EE” at Left with Service Icon Flashing = Freezer Compartment Thermistor (or its Wiring) Fault
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-55. Service Icon Flashing and “EE” at Right = Refrig. Compartment Thermistor (or its wiring) Fault

Electronic Control System
3-33 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-59. Service Icon Flashing with Alarm Chiming = Major Fault Code Logged (Immediate Action
Required; Temperature Problems and/or Possible Appliance Damage &/or Flood Warning - Water through
Flow Meter but No Call for Water)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-60. To Clear Fault Codes After Correcting the Problem, Press ALARM Key for 15 Seconds -
“C” and “FC” appear for 5 Seconds indicating Fault Codes have been Cleared
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-56. Service Icon and Ice Cube Icon Flashing = Solenoid Energized 35 Seconds and Ice Maker
System was Disabled for 24 Hours, 5 Consecutive Times; now Ice Maker System Disabled until Repaired
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-58. Service Icon Flashing, but Alarm Not Chiming (Usually with Normal Temperatures Displayed) =
Major Fault Code Logged (Threatening Temp. Problems), and/or Fault Codes not Cleared after Viewing
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-57. Service Icon Steady (Not Flashing) with Normal Temperatures Displayed = Minor Fault Code
Logged (Not Threatening Temperature Problems), and/or Fault Codes not Cleared after Viewing
Press and hold for 15 seconds
Indicates Cleared Fault Codes

Electronic Control System
3-34
#7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
SERVICE INPUT OPERATIONS
The following few pages explain service input operations that can be performed at the control panel: Diagnostic
Mode, Fault Code Recall Mode, Temperature Log Recall Mode, Model Configuration Mode, Manual Zone
Component Activation Mode and Self-Test Mode.
Diagnostic Mode
Diagnostic Mode allows the Service Technician to observe current, real-time temperature readings from all thermis-
tors without weighted averaging or offsets. Diagnostic Mode is also used as an interim step to get into other modes.
NOTE: The key strokes to initiate Diagnostic Mode and Fault Code Recall Mode are the same. If the electronic
control has recorded Fault Codes, then the key strokes listed below will initiate Fault Code Recall Mode, which will
be explained later. If Fault Codes are observed but the desire is to view current temperature readings from the ther-
mistors, then press the ALARM key; this will shift the electronic control system into Diagnostic Mode.
To initiate Diagnostic Mode, the unit must be ON, then press and hold either COLDER key, and press the POWER
key, then release both keys. If there are no Fault Codes logged, then at left in the LCD will be current, real-time
temperature readings of a thermistor; at right will be the thermistor location code, and all icons in the LCD will illumi-
nate (See Figure 3-61). Pressing a COLDER or WARMER key while in Diagnostic Mode will toggle to the next or
previous thermistor location, respectively (See Figure 3-62 below and Thermistor Location Code Table with
Additional Diagnostic Mode Notes on following page)
NOTES:
• Do not press 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.
• Diagnostic Mode will end twenty (20) seconds after the last key stroke, or press the ALARM key to exit this mode.
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-61. Initiate Diagnostic Mode - Press and Hold Either COLDER Key, Then the POWER Key -
(“r” = Refrigerator Compartment)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-62. Press WARMER (or COLDER) Key to Toggle Through the Temperatures -
(“rE” = Refrigerator Evaporator)
Temperature Temperature Units of Measure
Location Code

Electronic Control System
3-35 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-63. If Initiating Diagnostic Mode and “SH” and “r” appears in LCD, unit is in Show Room Mode
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-64. If “EE” appears at Left in LCD During Diagnostic Mode, That Thermistor or its wiring is faulty
ADDITIONAL DIAGNOSTIC MODE NOTES:
• If “Sh” and “r” appear in the LCD when initiating Diagnostic Mode (See Figure 3-63), the unit is in Showroom Mode
which was covered earlier in this section.
• If “EE” is observed in the left display area during Diagnostic Mode, the thermistor in that location is open, shorted,
unstable, or not present (See Figure 3-64).
• There is currently no thermistor in the drawers, so “EE” will appear at left of the “dr” (See Figure 3-65).
• There is currently no thermistors on the condenser, so “EE” will appear at left of the “Cn” (See Figure 3-66).
• The ambient thermistor is part of the control board. It is not a separate component.
Refrigerator Compartment
Refrigerator Evaporator
Freezer Compartment
Freezer Evaporator
Refrigerator Drawers (Not Active)
Condenser (Not Active)
CODE LOCATION
THERMISTOR LOCATION CODE TABLE
Ambient
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-65. Currently no Thermistor in Drawer Area, so “EE” will Appear to the Left of the “dr”
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-66. Currently no Thermistor on Condenser, so “EE” will Appear to the Left of the “Cn”

Electronic Control System
3-36
#7005333 - Revision A - January, 2008
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 the previous page.
To initiate Fault Code Recall Mode, the unit must be ON, then press and hold either COLDER key, and press the
POWER key, then release both keys (See Figure 3-67). If any Fault Codes were logged they will be displayed in the
LCD at this time. To see if multiple Fault Codes are stored, press a WARMER or COLDER key to toggle through the
codes (See Figure Figure 3-68 and the Fault Code Table with LCD Correlation Diagram on following page).
NOTE:
• Do not press 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 press the ALARM key for fifteen (15) seconds. Failure to
do this will cause the Service icon to display steady.
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-67. Initiate Fault Code Recall Mode - Press 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
Water Detected Passing Through)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-67. Press 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 page)
(See the Fault Code Troubleshooting Tables in Troubleshooting Guide section of this manual)

Electronic Control System
3-37 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
FAULT CODE TABLE WITH LCD CORRELATION DIAGRAM ( PAGE 1 of 2 )
10
15
20
30
35
40
44
45
50
60
90
95
98
Thermistor Faults
Relay Faults
Defrost Heater Faults
Ice/Water/Accessory Faults
Fan Faults
Runtime Faults
Glass Heater Faults
Lighting Faults
Flow Meter
Load/Component Faults
Control Faults
Diagnostics
Power Faults
0
1
2
3
4
5
6
7
8
9
A
d
F
H
L
r
U
Misc
Refrigerator
Freezer
Condenser
Defrost System
Control System
Compressors
Ambient
Icemaker
Dispenser
Air Purifier
TC Drawer
Freezer Evaporator
High Voltage System
Lighting
Refrigerator Evaporator
Water Systems
00
01
02
05
06
07
09
10
11
12
20
21
22
25
30
33
34
35
36
37
38
39
40
42
43
44
45
46
Open
Short/Closed
Unstable
Miswire normal temps
Miswire overheat
Bad Ohms
Too Warm/Large Temp Differential
Second Device Open
Second Device Short/Closed
Second Device Unstable
Third Device Open
Third Device Short/Closed
Third Device Unstable
Diagnostics Failure
Valve Enabled Too Long
Speed Setting too Low
Speed Setting too High
Fan speed error
Fan current too low
Fan current too high
Fan Power Output Fault
DC Fan Output Fault
Excessive runtime
Primary Heater Fault
Secondary Heater Fault
Door Heater Output Fault
Burned out Light
No Position/State Detect
NOTE: These Columns are repeated on next page
NOTE: This Column is
continued on next page

Electronic Control System
3-38
#7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
FAULT CODE TABLE WITH LCD CORRELATION DIAGRAM ( PAGE 2 of 2 )
10
15
20
30
35
40
44
45
50
60
90
95
98
Thermistor Faults
Relay Faults
Defrost Heater Faults
Ice/Water/Accessory Faults
Fan Faults
Runtime Faults
Glass Heater Faults
Lighting Faults
Flow Meter
Load/Component Faults
Control Faults
Diagnostics
Power Faults
0
1
2
3
4
5
6
7
8
9
A
d
F
H
L
r
U
Misc
Refrigerator
Freezer
Condenser
Defrost System
Control System
Compressors
Ambient
Icemaker
Dispenser
Air Purifier
TC Drawer
Freezer Evaporator
High Voltage System
Lighting
Refrigerator Evaporator
Water Systems
50
55
56
60
65
66
70
71
72
73
74
75
80
81
82
83
84
85
86
87
90
92
93
95
96
97
98
99
Open Heater
Triac Open
Triac Short
No Load/Load Open
Stuck at Dispenser Water Valve Out
Stuck at Ice Water Valve Out
Bad Flash Write
Flash Initialized
Flash Memory Bad
Invalid Log Fault Checksum
Invalid E2 Checksum
Invalid Model E2 Checksum
No Communication
Communications Time-out
Partial Communications
Bad Micro Communication
Micro Initialization
Display Failure
Too Slow
No Flow
Framing Errors
Excessive Collisions
Data Overrun
FMEA Error
Calibration or Low Signal Error
Quantum SPI
Brownout
Other
NOTE: These Columns are repeated from last page
NOTE: This Column is
continued from last page

Electronic Control System
3-39 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-68. Temperature Log Recall Mode for Compartment Temperature History Only -
Press and Hold Desired WARMER Key, then POWER Key.
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-71. Toggle Down Through Indexes - Press and Hold COLDER Key, or Press in Multiple Key Strokes
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-70. Toggle Up Through Indexes - Press and Hold WARMER Key, or Press in Multiple Key Strokes
Temperature
Temperature Log Recall Mode
The electronic control system logs/stores the average temperature of each individual thermistor every thirty (30) min-
utes, along with any possible event indicators. These thirty-minute periods are referred to as “indexes”. Up to two-
hundred forty (240) indexes can be stored for each thermistor, which is five (5) days of temperature history.After
two-hundred forty (240) indexes are stored, each new index bumps the oldest index, with index number “240” being
the oldest thirty minute temperature average. Accessing and viewing this temperature history data in the LCD is
accomplished by initiating Temperature Log Recall Mode.
There are two ways to initiate Temperature Log Recall Mode. One allows viewing of historical average temperature
readings from the compartment thermistors only, the other allows viewing of historical average temperature readings
from all thermistors.
Temperature Log Recall Mode for Compartment Thermistors Only - With the unit ON, press and hold the
desired compartment WARMER key, then the POWER key, then release both keys (See Figure 3-68). The LCD will
now display compartment temperature at left and the Index number at right, with the thermistor location code flash-
ing at three (3) second intervals in the first index digit area (“r” = Refrigerator, “F” = Freezer - See Figure 3-69).
Pressing the WARMER key will toggle up through the indexes, from 1 to 240 (See Figure 3-70), while pressing the
COLDER key will toggle down (See Figure 3-71).
NOTE: Temperature Log Recall Mode will end 20 seconds after the last key stroke.
Index 240
Figure 3-69. Thermistor Location Code Flashes at 3 second intervals
1st Index Digit
2nd and 3rd Index Digits
Index 002
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Location Code Flashes Every 3 Seconds

Electronic Control System
3-40
#7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
Temperature Log Recall Mode for All Thermistors - Begin with the unit in Diagnostic Mode (See Figure 3-72).
NOTE: If Fault Codes have been logged the control will enter Fault Code Recall Mode instead of Diagnostic Mode.
If this happens press the ALARM key to shift the electronic control system into Diagnostic Mode.
While in Diagnostic Mode, toggle through the readings using a WARMER or COLDER key until the desired thermis-
tor location code is displayed at the right side of the LCD (See Figure 3-73) (r = Refrigerator, rE = Refrigerator
Evaporator, F = Freezer, FE = Freezer Evaporator).
NOTE: If “dr”, “Cn” or “A”, appear, continue to toggle past these codes as it is not possible to to enter Temperature
Log Recall Mode for these thermistors.
Once the desired thermistor code is displayed, press and hold the POWER key first, then a WARMER key, then
release both keys. The LCD will now display temperature at left and the Index number at right (See Figure 3-74),
with the thermistor location code flashing at three (3) second intervals in the first index digit area (“r” = Refrigerator,
“r” then “E” = Refrigerator Evaporator, “F” = Freezer, “F” then “E” = Freezer Evaporator - See Figure 3-75 and 3-76).
Pressing the WARMER key toggles up through the indexes, from 1 to 240, while pressing the COLDER key toggles
down
NOTE: Temperature Log Recall Mode will end twenty (20) seconds after the last key stroke.
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-73. Toggle Thru Readings - Press WARMER (or COLDER) Key Until Desired Code is Displayed
Figure 3-76. Thermistor Location Code Flashes at 3 second intervals (F then E = Freezer Evaporator)
Figure 3-75. Thermistor Location Code Flashes at 3 second intervals (F then E = Freezer Evaporator)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-72. Initiate Diagnostic Mode - Press and Hold Either COLDER Key, then the POWER Key
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-74. With Desired Thermistor Code Displayed, Press & Hold POWER Key First, then WARMER Key
Temperature
1st Index Digit
2nd and 3rd Index Digits
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Location Code Flashes Every 3 Seconds (F=Freezer)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Location Code Flashes Every 3 Seconds (E=Evaporator)

Electronic Control System
3-41 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
Temperature Log NOTES:
• If Manual Compartment Disable Mode has been activated during any of the indexes, average temperatures will
continue to be logged, but no event indicator will appear with these temperatures.
• If the unit was in Showroom Mode during any of the indexes, average temperatures will continue to be logged, but
no event indicator will appear with these temperatures.
• If the unit was switched OFF by pressing the POWER key during any of the indexes and there was still power sup-
plied to the unit, the average temperatures will continue to be logged. This means temperatures would be expect-
ed to rise and the SERVICE indicator would be present in all indexes in which the unit was switched OFF.
• Temperature Log Recall Mode will end 20 seconds after the last key stroke.
Temperature Log Event Indicators - The diagrams below illustrate possible event indicators that may be
observed while in Temperature Log Recall Mode. (See Figures 3-77 through 3-79)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-77. “bL” Indicates Index is “BLANK” = No Temperature Logged Yet
(Only possible within first 5 days of unit operation, or after new control board is installed during service)
Index of occurrence (220 in this example)
“bL” = Blank
Figure 3-78. SERVICE Icon Illuminates = Unit was switched OFF During Index by Pressing POWER Key
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Index of occurrence (82 in this example)
Indicates POWER key pressed, switching unit OFF
Figure 3-79. Bell Illuminates = Indicates Power Failure / Interruption During that Index Period
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Index of occurrence (51 in this example)
Indicates power interruption

Electronic Control System
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#7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
Model Configuration Mode
The main control board is used in several different models, so it must be configured/programmed for the specific
model it is used in through a series of key strokes at the control panel. This is called Model Configuration.
If a new control board is installed during a service call, a default configuration is automatically entered represented
by “dE” and “FL” in the LCD during the short power up diagnostics test after power is supplied to the unit (See
Figure 3-80). This indicates Model Configuration Mode must be initiated so the new new board can be configured
for the model it was installed into.
Model Configuration Mode also allows a Service Technician to verify that the control board was configured correctly,
and/or to reconfigure the control board if configured incorrectly.
To initiate Model Configuration Mode the unit must be ON and in Diagnostic Mode (See Figure 3-81). Then, press
and hold the POWER key for ten (10) seconds, until a model code appears in the LCD (See Figure 82 and Model
Code Table on following page). Now, toggle through the model codes by pressing a WARMER or COLDER key in
multiple key strokes until the appropriate model code is displayed (See Figures 3-83 and 3-84). With the appropri-
ate model code displayed, press the POWER key and “Pr” and “g” appears, indicating a question as to whether this
is the desired model code to be programmed (See Figure 3-85). If the code is correct, press the POWER key again
within five (5) seconds to store the model configuration (See Figure 3-86).
NOTES:
• The second press of the POWER key must occur within five (5) seconds of the first.
• If no keys are pressed within any thirty (30) seconds period after initiating Model Configuration Mode, the mode
will automatically be exited, and the unit will revert back to the last model configured, or to the default setting.
• If the ALARM key is pressed, or if either pair of WARMER and COLDER keys are pressed during Model
Configuration Mode, the mode will be exited.
Figure 3-80. When New Board is Installed and Power Supplied “dE” and “FL” = Default Configuration;
Model Configuration must be Performed
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-81. Initiate Diagnostic Mode First - Press and Hold Either COLDER Key, Then the POWER Key
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-82. Initiate Model Configuration Mode - While in Diagnostic Mode,
Press and Hold POWER Key for 10 seconds - “dE” and “FL” = Default Configuration
Press and hold for 10 seconds

Electronic Control System
3-43 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
Figure 3-83. Toggle Through Model Codes with Multiple Key Strokes of COLDER or WARMER keys
Until Correct Model Code is Displayed (“36” and “r” = 36” All Refrigerator)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-84. Stop When Correct Model Code is Displayed (“48” and “S” = 48” Side-by-Side)
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-85. Press POWER Key when Correct Code is Displayed, “Pr” and “g” Appear on LCD
Asking if the Code Displayed Should be Programmed/Stored
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Figure 3-86. Press POWER Key Again - Configuration is Complete,
Model Code is Displayed for 3 Seconds (“48” and “S” = 48” Side-by-Side), then Temperatures are Displayed
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
BI30U
BI30UG
BI36F
BI36R
BI36RG
BI36S
BI36U
BI36UG
BI42S
BI42SD
BI48S
BI48SD
CODE MODEL CODE MODEL
MODEL CODE TABLE MODEL CODE TABLE
* DEFAULT
* DEFAULT SETTING; MUST BE CONFIGURED.

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
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Press and hold for 10 seconds
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
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
PURE AIRWARMERCOLDER WARMERCOLDER ALARM POWERMAX ICEICE MAKERLIGHTS
Press and hold for 10 seconds

Electronic Control System
3-45 #7005333 - Revision A - January, 2008
Built-In (BI) Series
Built-In (BI) Series
TABLE NOTES:
The LCD will show Celsius temperatures during this mode if the appliance has been set to display Celsius units of
measure.
“-84F” or “-64c” will appear in place of temperature if the thermistor is open or missing. Which one appears depends
on whether the appliance is set to display Fahrenheit or Celsius units of measure.
STEP FUNCTIONS / COMPONENT(S)
1
3
2
4
5
6
7
8
9
10
LCD VIEW COMMENTS
All Components OFF; All Lights OFF OFF Displayed; All Lights OFF
Ref Compressor ON Zone Temp & r Displayed; Actual temps will vary
Ref Evaporator Fan ON (Comp stays ON) Alternate Evap Temp & rE / Zone Temp & rC Display at
5 second intervals; Actual temps will vary
Condenser Fan ON (Comp/Evap fan stays ON) Zone Temp & Cd Displayed; Actual temps will vary
Drawer Fan(s) ON (Comp/Evap/Cond fan
switch OFF)
Alternate -84 (-64 if set Celsius) & dr / Evap Temp & rE
Display at 5 second intervals; Actual temps will vary
Drawer Fan(s) OFF OFF Displayed; All Lights ON
Air Purifier Light & Fan ON Ar & Ft Displayed
Everything OFF (Light relay ON/Lights OFF) OFF Displayed; All Lights OFF
Main Lights ON LS & On Displayed; Main Lights ON; All else OFF
Accent/Display Lights ON AC & Lt Displayed; All Lights ON
Normal ON Mode Press POWER to exit, or let time outEXIT
STEP FUNCTIONS / COMPONENT(S)
1
3
2
4
5
6
7
8
LCD VIEW COMMENTS
All Components OFF; All Lights OFF OFF Displayed; All Lights OFF
Fre Compressor ON Zone Temp & F Displayed; Actual temps will vary
Fre Evap Fan ON (Comp stays ON) Alternate Evap Temp & FE / Zone Temp & FC Display
at 5 second intervals; Actual temps will vary
Condenser Fan ON (Comp/Evap fan stays ON) Zone Temp & Cd Displayed; Actual temps will vary
Defrost Heater ON Evap Temp & Et Displayed; Actual temps will vary
Defrost Heater ON; Evap Fan ON Evap Temp & dE Displayed; Actual temps will vary
All Components OFF; All Lights OFF OFF Displayed; All Lights OFF
All Lights ON LS & On Displayed; All Lights ON
Normal ON Mode Press POWER to exit, or let time outEXIT
REFRIGERATOR ZONE MANUAL COMPONENT ACTIVATION TABLE
FREEZER ZONE MANUAL COMPONENT ACTIVATION TABLE