Sub-Zero ICBID-CI Integrated Drawer Combination Operating instructions

ICBID-CI Integrated Drawer Combination
Sub-Zero
Brand
Sub-Zero
Model
ICBID-CI Integrated Drawer Combination
Type
Operating instructions

Sub-Zero ICBID-CI Integrated Drawer Combination is a versatile refrigeration system offering a range of features to preserve and organize food items. With its three independent temperature-controlled drawers, you can simultaneously store different food types at their ideal conditions. The convertible drawer allows you to switch between refrigerator and freezer settings, accommodating various storage needs. Advanced technology like microprocessor controls ensures precise temperature management, while the automatic defrost system eliminates manual maintenance.

Sub-Zero ICBID-CI Integrated Drawer Combination is a versatile refrigeration system offering a range of features to preserve and organize food items. With its three independent temperature-controlled drawers, you can simultaneously store different food types at their ideal conditions. The convertible drawer allows you to switch between refrigerator and freezer settings, accommodating various storage needs. Advanced technology like microprocessor controls ensures precise temperature management, while the automatic defrost system eliminates manual maintenance.

ERROR CODE TROUBLESHOOTING GUIDE
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
10 0 00 2
Condenser thermistor open
Verify temperature reading and
Ohm thermistor; replace
thermistor if bad
10 0 01 2
Condenser thermistor short
Verify temperature reading and
Ohm thermistor; replace
thermistor if bad
10 0 02 2
Condenser thermistor unstable
Check for bad connections
and/or damaged wires; replace
thermistor if bad
10 1 00 2
Zone 1 Cabinet Thermistor
Open
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 1 01 2
Zone 1 Cabinet Thermistor
Short
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 1 02 2
Zone 1 Cabinet Thermistor
Unstable
Check for bad connections
and/or damaged wires; repair
connection or wire
10 1 10 2
Zone 1 Evaporator Thermistor
Open
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 1 11 2
Zone 1 Evaporator Thermistor
Shorted
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 1 12 2
Zone 1 Evaporator Thermistor
Unstable
Check for bad connections
and/or damaged wires; repair
connection or wire
10 2 00 2 Zone 2 Cabinet Thermistor
Open
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 2 01 2
Zone 2 Cabinet Thermistor
Short
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 2 02 2
Zone 2 Cabinet Thermistor
Unstable
Check for bad connections
and/or damaged wires; repair
connection or wire
10 2 10 2
Zone 2 Evaporator Thermistor
Open
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 2 11 2
Zone 2 Evaporator Thermistor
Shorted
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 2 12 2
Zone 2 Evaporator Thermistor
Unstable
Check for bad connections
and/or damaged wires; repair
connection or wire
10 3 00 2
Zone 3 Cabinet Thermistor
Open
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 3 01 2
Zone 3 Cabinet Thermistor
Short
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 3 02 2
Zone 3 Cabinet Thermistor
Unstable
Check for bad connections
and/or damaged wires; repair
connection or wire
10 3 10 2 Zone 3 Evaporator Thermistor
Open
ICBID-CI Integrated Drawer Combination
Troubleshooting
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7041359 REVA 04/2017 51
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 3 11 2
Zone 3 Evaporator Thermistor
Shorted
Verify Temperature reading and
Ohm thermistor; replace
thermistor if bad
10 3 12 2
Zone 3 Evaporator Thermistor
Unstable
Check for bad connections
and/or damaged wires; repair
connection or wire
10 7 00 1
Ambient thermistor on control
board open
Replace control board
15 1 00 5
Zone 1 compressor relay stuck
open
No current detected, no load,
open relay, inverter or harness.
Check wiring, compressor,
inverter and control board
connections; possible issue
with control board or inverter
15 1 01 5
Zone 1 compressor relay is
stuck closed
Verify and replace control board
15 2 00 5
Zone 2 compressor relay stuck
open
No current detected, no load,
open relay, inverter or harness.
Check wiring, compressor,
inverter and control board
connections; possible issue
with control board or inverter
15 2 01 5
Zone 2 compressor relay is
stuck closed
Verify and replace control board
15 3 00 5
Zone 3 compressor relay stuck
open
No current detected, no load,
open relay, inverter or harness.
Check wiring, compressor,
inverter and control board
connections; possible issue
with control board or inverter.
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
15 3 01 5
Zone 3 compressor relay is
stuck closed
Verify and replace control board
15 4 00 2
Defrost relay stuck open
No power to defrost heater;
verify and replace control board
15 4 01 3 Defrost relay stuck closed
Verify and replace control board
15 C 00 1
AC Condenser Fan Relay Stuck
open
No power to condenser fan;
verify and replace control board
15 C 01 1
AC Condenser Fan Relay Stuck
closed
Verify and replace control board
15 U 00 1
Water valve no current detected
No current change detected for
a activated call for water or
dispense; possible stuck open
relay, or failed valve
Check valves, harnesses and
proper voltage from control
board output; replace control
board, valve, or repair
connection
15 U 01 4
Water valve current detected
After valid dispense or ice
maker fill, current is still
detected for a water call; check
for shorted relay on control
board; replace control board
20 2 00 2
Defrost Bi-metal stuck open
Verify the bi-metal is an open
circuit below -2° C; replace
defrost bi-metal if necessary
20 2 01 2
Defrost Bi-metal stuck closed
Verify the bi-metal is closed
above 28° C; replace defrost bi-
metal if necessary
20 2 05 1 Defrost Bi-metal Mis-wire w/
normal temps
ICBID-CI Integrated Drawer Combination
Troubleshooting
Error Code Troubleshooting Guide (continued)
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7041359 REVA 04/2017 52
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
Normal defrost temps, but
inappropriate response from bi-
metal; check wiring and bi-
metal mounting; correct any
issue found
20 2 06 2
Defrost Bi-metal Mis-wire w/
overheat
High temps during defrost, and
inappropriate response from bi-
metal; check wiring and bi-
metal mounting; correct any
issue found
20 2 50 2
Defrost heater open
Check defrost heater ohms;
verify wiring and heater; replace
heater if necessary
30 8 05 1
No signal from icemaker for fill
Check wiring and power to ice
maker
35 1 00 2
Zone 1 evaporator fan Open
Check control board, door/
drawer switch, and evaporator
fan; replace failed part
35 1 33 1
Zone 1 fan speed set too Low,
because fan actually rotating
too fast
Verify fan not shorted as the fan
is actually running faster than
it's setting.
Possible control board reading
error, evaporator fan error,
wiring/connector error replace
faulty part
35 1 34 1
Zone 1 fan speed set too High,
because fan actually rotating
too slow
Check fan for obstructions,
wiring issues, actual voltage
from control board; replace
faulty part
35 2 00 2
Zone 2 evaporator fan open
Check control board and
evaporator fan; replace faulty
part
35 2 33 1
Zone 2 fan speed set too Low,
because fan actually rotating
too fast
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
Verify fan not shorted as fan is
running faster than it's setting;
possible control board reading
error, evaporator fan error,
wiring/connector error; replace
faulty part
35 2 34 1
Zone 2 fan speed set too High,
because fan actually rotating
too slow
Check fan for obstructions,
wiring issues, actual voltage
from control board; replace
faulty part
35 3 00 2
Zone 3 evaporator fan open
Check control board and
evaporator fan; replace faulty
part
35 3 33 1
Zone 3 fan speed set too Low,
because fan actually rotating
too fast
Verify fan not shorted as fan is
running faster than it's setting;
possible control board reading
error, evaporator fan error,
wiring/connector error. Replace
faulty part
35 3 34 1
Zone 3 fan speed set too High,
because fan actually rotating
too slow
Check fan for obstructions,
wiring issues, actual voltage
from control board; replace
faulty part
35 A 00 1
Air Filter fan open
Check control board and air
filter fan; replace faulty part
35 C 00 1
DC Condenser Fan open
Check wiring and power to
condenser fan; replace failed
part
35 C 33 1
DC condenser fan speed set
too Low, because fan actually
rotating too fast
Verify fan not shorted as fan is
running faster than it's setting;
possible control board reading
error, condenser fan error,
wiring/connector error; replace
faulty part
ICBID-CI Integrated Drawer Combination
Troubleshooting
Error Code Troubleshooting Guide (continued)
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7041359 REVA 04/2017 53
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
35 C 34 1
DC condenser fan speed set
too High, because fan actually
rotating too slow
Check fan for obstructions,
wiring issues, actual voltage
from control board; replace
faulty part
40 1 00 1 Zone 1 Stepper Current Fault
No current detected
40 1 40 3
Zone 1 excessive compressor
runtime
Verify performance of unit and
check for door leaks, door ajar,
proper charge in system, and
icing of evaporator; replace
faulty part
40 1 87 1 Zone 1 Stepper Cooling Fault
No cooling Detected
40 2 00 1 Zone 2 Stepper Current Fault
No current detected
40 2 40 3
Zone 2 Excessive runtime
Verify performance of unit and
check for door leaks, door ajar,
proper charge in system, and
icing of evaporator; replace
faulty part
40 2 87 1 Zone 2 Stepper Cooling Fault
No cooling Detected
40 3 40 3
Zone 3 Excessive runtime
Verify performance of unit and
check for door leaks, door ajar,
proper charge in system, and
icing of evaporator; replace
faulty part
40 9 40 1
Dispenser Max Time
Dispenser active for maximum
fill time
Verify no stuck keys or flooding.
Reset after 30 days, allows
service time to review if any
issues occurred / usage
40 b 00 1
Baffle current fault
Check harness, power from
control board; repair harness,
replace baffle, or control board
ERROR CODE TROUBLESHOOTING GUIDE
Code Severity Description and Action
40 b 87 1
Baffle Cooling / position fault
Check baffle operation; replace
baffle, or control board
45 1 00 1
Lights open circuit
Main lights relay open, open
bulb, or circuit; repair circuit,
replace bulb, or control board
45 1 01 1
Lights short circuit
Main lights relay closed, bulb or
circuit damage; repair or
replace damaged part
45 2 00 1
Lights open circuit
Main lights relay open, open
bulb, or circuit; repair or replace
damaged part
45 2 01 1
Lights short circuit
Main lights relay closed, bulb or
circuit damage; repair or
replace damaged part
90 5 80 1
No UIM communications
Check wiring and key
performance of UIM; replace or
repair failed part
90 H 80 2
High voltage micro (CCM) no
communication
Communications problems on
control board; replace control
board
90 H 82 1
High voltage micro (CCM)
partial communication
Intermittent communications on
control board, check harnesses
and connections; replace
harness or control board
90 H 83 2
HV Micro bad (CCM)
communication
Communications problems on
control board; replace control
board
90 H 84 2
HV Micro (CMM) initialization
Initialization fault. Power cycle
unit and verify if code remains
active; if code still active
replace control board
ICBID-CI Integrated Drawer Combination
Troubleshooting
ERROR CODE TROUBLESHOOTING GUIDE (continued)
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7041359 REVA 04/2017 54
UNIT TERMPERATURES AND THERMISTORS
Refrigerator Compartment Thermistor
The refrigerator compartment thermistor senses the refrigerator
compartment temperature and relays it to the control board.
REFRIGERATOR COMPARTMENT THERMISTOR
Thermistor Condition Action
Open or Shorted
▪EE on UIM
▪Service Wrench Flashes
▪Fault Code logged
▪Compressor faults to 20
minutes on, and 40
minutes off
High temperature offset
reached
High speed run command
sent to refrigerator or freezer
evaporator fan
UIM temperature display
Changes one degree per
minute; is an average of
compartment thermistor
readings
Sabbath Mode 15 to 25 second delay before
compressor starts
Baffle at high offset
▪Baffle opens
▪Evaporator fan runs at
High
Refrigerator compartment
below 2°C
Defrost time extended before
starting evaporator fan
Refrigerator Compartment Thermistor Test
1Turn off power to the unit.
2Follow the procedure in Component Removal and
Installation to expose the refrigerator cabinet thermistor.
3Follow the procedure in Component Removal and
Installation to expose the control board.
4Remove the thermistor harness from the control board.
5Place the thermistor into an ice bath of 0° C. Let the
thermistor sit for five minutes, stirring occasionally.
6Measure the resistance of the thermistor through the board
connector.
7If thermistor is outside normal values, replace it.
Freezer Cabinet Thermistor
The freezer cabinet thermistor senses the freezer cabinet
temperature and transmits it to the control board.
FREEZER CABINET THERMISTOR
Thermistor Condition Action
Open or Shorted
▪EE on UIM
▪Service Wrench Flashes
▪Fault Code logged
▪Compressor on 20
minutes and off 20
minutes
High temperature offset
reached
Compressor energized, unless
in defrost
UIM temperature displays an
average of compartment
thermistor
Changes one degree per
minute
Sabbath Mode 15 to 25 second delay before
compressor starts
Low offset Compressor and evaporator
fan stopped
During Adaptive Defrost Freezer Temperature display
is locked
Testing the Freezer Cabinet Thermistor
1Turn off power to the unit.
2Follow the procedure in Component Removal and
Installation to expose the freezer cabinet thermistor.
3Remove the thermistor from the freezer compartment clip.
4Follow the procedure in Component Removal and
Installation to expose the control board.
5Remove the thermistor harness from the control board.
6Place the thermistor into an ice bath of 0° C. Let the
thermistor sit for five minutes, stirring occasionally.
7Measure the resistance of the thermistor through the board
connector.
8If thermistor is outside normal values, replace it.
Freezer Evaporator Thermistor
The freezer evaporator thermistor senses the freezer evaporator
temperature and transmits it to the control board, where it used
for the adaptive defrost and to operate the evaporator fan after
defrost.
ICBID-CI Integrated Drawer Combination
Troubleshooting
Unit Termperatures and Thermistors (continued)
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FREEZER EVAPORATOR THERMISTOR
Thermistor Condition Action
Open or Shorted
▪EE in Service Options -
Temps
▪Service Wrench Flashes
▪Fault Code logged
▪Compressor energized
after 5 minute defrost
dwell
Freezer evaporator
temperature above 2°C after
defrost
Evaporator fan will not start
Freezer evaporator
temperature approximately
16° C to 21° C
De-energize the defrost heater
Freezer Evaporator Thermistor Test
1Turn off power to the unit.
2Follow the procedure in Component Removal and
Installation to expose the freezer evaporator thermistor.
3Remove the thermistor from the freezer evaporator.
4Follow the procedure in Component Removal and
Installation to expose the control board.
5Remove the thermistor harness from the control board.
6Place the thermistor into an ice bath of 0° C. Let the
thermistor sit for five minutes, stirring occasionally.
7Measure the resistance of the thermistor through the board
connector.
8If thermistor is outside normal values, replace it.
COMPONENT
Condenser Fan Testing
The condenser fan is supplied with 12 VDC at all times. The
condenser area temperature determines the speed of the fan.
TIP: Test the condenser fan under load.
1Verify the control board model configuration is correct.
2Disconnect the electrical connector from the fan, and
measure the resistance between the power wire and the
return wire.
3Reconnect the fan.
4Check for voltage between the power and return wires.
5Check for voltage between the Variable Speed Control and
return wires.
6Check for voltage between the Tachometer Input and return
wires. Voltage is present only when the control board
senses temperatures based on the Condesner Fan Speed
chart.
Condenser Fan Speed
CONDENSER FAN SPEED
Thermistor Condition Fan Speed
approximately 13° C Low Speed
approximately 24° C Medium Speed
approximately 35° C High Speed
Open/Shorted High Speed
Condenser Fan Wiring
CONDENSER FAN WIRING
Wire Color Function
Red Fan Power
Yellow/Orange Variable Speed Control
Blue/Orange Tachometer Input
Black/Red Fan Return
Evaporator Fan Test
The evaporator has 12 VDC power at all times. Evaporator
temperature determines the fan speed.
TIP: Test the evaporator fan under load.
1Verify the control board model configuration is correct.
2Disconnect the electrical connector from the fan, and
measure the resistance between the power wire and the
return wire.
3Reconnect the fan.
4Check for voltage between the power and return wires.
5Check for voltage between the Variable Speed Control and
return wires.
6Check for voltage between the Tachometer Input and return
wires. Voltage is present only when the control board
senses temperatures based on the Condesner Fan Speed
chart.
ICBID-CI Integrated Drawer Combination
Troubleshooting
FREEZER EVAPORATOR THERMISTOR (continued)
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Integrated Evaporator Fan Wiring
The evaporator fan uses a four wire system to controll fan
operation. The four wires are fan power, variable speed control
out, tachometer input, and fan return. Measuring the DC voltage
between these wires gives this result:
FAN DC VOLTAGE TEST RESULTS
Test Measure Result
Fan power to fan return 12 VDC
Variable speed control out to
fan return 12 VDC
Tachometer input to fan return Variable VDC based on fan
speed
TIP: Test voltage under load.
EVAPORATOR FAN WIRE COLORS
Color Refrigerator Freezer
Red Power Power
Yellow Variable speed
control n/a
Yellow/Brown n/a Variable speed
control
Blue Tachometer input n/a
Blue/White n/a Tachometer input
Black/Red Fan return Fan return
ICEMAKER
Manually Start the Icemaker
TIP: If the icemaker is above -9°C ±2°C it only completes
one revolution.
1Remove the icemaker front cover from the icemaker.
2With a flat blade screwdriver, turn the drive gear
counterclockwise until the icemaker activates (usually about
1/8 of a turn).
Turn Drive Gear
Counterclockwise
TIP: To over ride the 45 minute dwell, turn the icemaker off, and
then back on.
TIP: If the door/drawer switch was closed, the icemaker is de-
energized for three minutes.
Icemaker Fault Testing
1Check the icemaker is on and it is not in the 45 minute
dwell.
2Verify the shutoff arm is down.
3Confirm the icemaker is below -9°C ±2°C.
4Check for voltage from the control board.
5Check the operation of the drawer/door switch.
6Visually inspect electrical connections at the icemaker and
water valves.
7If electrical connections are good, the drawer/door switch is
operating correctly, but no power from the control board,
replace the control board.
8If the icemaker still does not work, replace the icemaker.
Icemaker Does Not Fill
TIP: If >-9°C, icemaker only completes 1 revolution.
1Check the resistance of the Isolation Water Valve. It is 2645
ohms ±10%.
2Check the resistance of the Icemaker Water Valve. It is 1058
ohms ±10%.
3Manually rotate the icemaker, and check for power to the
Isolation Water Valve, and Icemaker Water Valve. If no
power to the water valves during the fill cycle, replace the
control board.
4If the icemaker still does not work, replace the icemaker.
Icemaker Does Not Finish Cycle
1Confirm icemaker is -9° C ±2°C.
2Replace icemaker.
SEALED SYSTEM
Sealed System Troubleshooting
Only enter the sealed system to check pressures if the Error
Code Troubleshooting Guide and General Troubleshooting
Guide do not pinpoint the cause of the temperature problem.
ICBID-CI Integrated Drawer Combination
Troubleshooting
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7041359 REVA 04/2017 57
▪Always use solder-on process valves when entering the
sealed system. Do NOT use bolt-on process valves as they
are prone to leak.
▪When servicing the sealed system, always replace the high
side filter drier.
▪Pressures listed are not indicative of initial pull down, but
rather of a steadily running, properly functioning appliance.
▪Pressures listed are for reference only; actual pressure
readings may vary because of ambient temperatures,
temperature set-points, food load, food temperature,
condenser cleanliness or gauge calibration.
▪Pressures based on a 21°C (70°F) a and set-points of -18°C
(0°F) in freezers and 3°C (38°F) in refrigerators).
NORMAL OPERATING PRESSURES
Model Normal Low Side
Pressure
Normal High Side
Pressure
ICBID-30
RP
Refrigera
tor 10 InHg to 5 psig 40 to 60 psig
ICBID-30
CI Freezer 15 inHg to 5 psig 35 to 50 psig
Non-Functional, Inefficient or Noisy Compressor
1Always evacuate R600a refrigerant to the outdoors.
2Use nitrogen for back-flushing system.
3Replace the Compressor.
4Replace high-side filter drier.
5Recharge system with virgin R600a refrigerant.
High Side Leak
1Always evacuate R600a refrigerant to the outdoors.
2Use nitrogen for back-flushing system.
3Repair leak if at solder joint, or replace defective
component.
4Replace high-side filter drier.
5Bump or tap compressor to help release residual refrigerant
from oil in compressor.
6Recharge system with virgin R600a refrigerant.
Low Side Leak
1Always evacuate R600a refrigerant to the outdoors.
2Use nitrogen for back-flushing system.
3Repair leak if at solder joint, or replace defective
component.
4If all refrigerant escapes and system is in a vacuum, replace
compressor.
5Replace high-side filter drier.
6Recharge system with virgin R600a refrigerant.
Contaminated Sealed System
1Evacuate R600a refrigerant to the outdoors.
2Use nitrogen for back-flushing system.
3Repair leak if at solder joint, or replace defective
component.
4Replace compressor.
5Replace high-side filter drier.
6Replace evaporator/heat exchanger assembly if cap tube
clogs.
7Install a low side drier on suction line.
8Recharge system with virgin R600a refrigerant.
Sealed System Restriction
IMPORTANT NOTE: If a restriction is due to the sealed
system being contaminated, see Contaminated Sealed
System.
1Always evacuate R600a refrigerant to the outdoors.
2Locate and remove restriction or locate and replace part.
3Use nitrogen for back-flushing system.
4Replace high-side filter drier.
5Bump or tap compressor to help release residual refrigerant
from oil in compressor.
6Recharge system with virgin R600a refrigerant.
Sealed System Refrigerant Overcharge
1Always evacuate R600a refrigerant to the outdoors.
2Use nitrogen for back-flushing system.
3Replace high-side filter drier.
4Bump or tap compressor to help release residual refrigerant
from oil in compressor.
5Recharge system with virgin R600a refrigerant.
ICBID-CI Integrated Drawer Combination
Troubleshooting
SEALED SYSTEM TROUBLESHOOTING (continued)
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Sub-Zero ICBID-CI Integrated Drawer Combination Operating instructions

ICBID-CI Integrated Drawer Combination
Sub-Zero
Brand
Sub-Zero
Model
ICBID-CI Integrated Drawer Combination
Type
Operating instructions

Sub-Zero ICBID-CI Integrated Drawer Combination is a versatile refrigeration system offering a range of features to preserve and organize food items. With its three independent temperature-controlled drawers, you can simultaneously store different food types at their ideal conditions. The convertible drawer allows you to switch between refrigerator and freezer settings, accommodating various storage needs. Advanced technology like microprocessor controls ensures precise temperature management, while the automatic defrost system eliminates manual maintenance.

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