Ee" Displayed In Place Of Refrigerator Temperature With "Service" Flashing; Warm Or Normal Temperatures Displayed With "Service" Alone Flashing; Warm Or Normal Temperatures Displayed With Non-Flashing "Service" Displayed; Erratic Temperatures With Or Without "Service" Flashing - Wolf Sub-Zero ICB400 Series Service Manual

International W
International W
PROBLEM
P. "EE" Displayed in place of
Refrigerator Temperature
with "SERVICE" Flashing
Q. Warm or Normal
Temperatures Displayed
with "SERVICE" Alone
Flashing
R. Warm or Normal
Temperatures Displayed
with non-flashing "SER-
VICE" Displayed
S. Erratic Temperatures with or
without "SERVICE" Flashing
T. Warm Refrigerator
Temperatures, "SERVICE"
not displayed or Flashing
(Continued)
ine Storage
ine Storage
POSSIBLE CAUSE
Refrigerator Compartment Thermistor
Disconnected, Shorted, or misread
Excessive Compressor Run
Evaporator Thermistor Disconnected,
Shorted, or misread
Error Codes Observed in Diagnostic
Mode, but not Cleared from Memory
Control Board Configured for Wrong
Model
No Power to Unit
Unit Switched OFF
Unit in Show Room Mode
Control Set Too High
Warm Food Load
High Room Ambient
Drawer Ajar
a. Food product obstruction
b. Drawer closer tripped backwards
Faulty Light Switch
7-15
Series
Series
(ICB400)
(ICB400)
Check refrigerator compartment thermistor
electrical connections from thermistor to
control board. Reconnect / repair connec-
tions. Check resistance of refrigerator com-
partment thermistor for 30,000 to 33,000
ohms at 0°C (32°F). Replace if defective.
Initiate Diagnostic Mode and see Error
Code Troubleshooting Guide
Check evaporator thermistor electrical con-
nections from thermistor to control board.
Reconnect / repair connections. Check
resistance of evaporator thermistor for
30,000 to 33,000 ohms at 0°C (32°F).
Replace if defective.
Enter diagnostic mode to observe error
codes.
Guide.
codes displayed. Press and hold alarm key
for 15 seconds to clear error codes.
Initiate Manual Model Configuration Mode
and reconfigure to correct model.
Check power to unit, plug unit in or switch
supply circuit breaker ON.
Check for "OFF" displayed at LCD. If off,
press POWER key.
Press POWER key to OFF, then press and
hold WARMER& COLDER keys, and press
POWER key.
Check set-point. If high, adjust.
Check contents of freezer for warm food
load. Instruct customer.
Instruct customer unit performs best
between 16°C (60°F) and 32°C (90°F).
a. Move obstruction.
b. Trip drawer closer forward
Check operation of light switches, lights off
when switch is depressed. Replace switch
if defective.
unit)
7011544 - Revision A - November, 2008
TroubleShoot Guide
TEST / ACTION
See Error Code Troubleshooting
Verify unit was repaired for error
(NOTE: Two light switches in