Error Codes And "Service" Flashing; Ee" Displayed In Place Of Freezer Temperature With "Service" Flashing; Ee" Displayed In Place Of Refrigerator Temperature With "Service" Flashing; Warm Or Normal Temperatures Displayed With Non-Flashing "Service" Displayed - Sub-Zero INTEGRATED Series Service Manual

INTEGRA
INTEGRA
PROBLEM
A. Error Codes & "SERVICE"
Flashing
B. "EE" Displayed in Place of
Freezer Temperature with
"SERVICE" Flashing
C. "EE" Displayed in place of
Refrigerator Temperature
with "SERVICE" Flashing
D. Warm or Normal Temp's
Displayed with "SERVICE"
Alone Flashing
E. Warm or Normal
Temperatures Displayed with
non-flashing "SERVICE"
Displayed
F. Erratic Temperatures with or
without "SERVICE" Flashing
G. Warm Freezer Temperature
with "SERVICE" Flashing
Pointers:
1. Evap Temp -20°F (-29°C) or
lower, see:
• Door ajar
• Lights ON w/door closed
• Evaporator fan fault
• Compartment thermistor mis-
read
• Evaporator heavily frosted
• Sealed system fault: leak or
partial restriction
2. Evap Temp between -19°F
(-28°C) and 0°F (-17°C), see:
• Condenser Air Flow
• Compartment thermistor mis-
read
• Sealed system fault: leak
3. Evaporator Temp higher than
0°F (-17°C), see:
• Power to compressor fault
• Sealed system Fault: leak,
restriction, inefficient compres-
sor
(Continued)
(See NOTES on next page)
TED
TED
(736 T (736 T all SWS #2970000) all SWS #2970000)
POSSIBLE CAUSE
Unit Experienced Temperature Problems
Freezer Compartment Thermistor
Disconnected, Shorted, or Misread
Refrigerator Compartment Thermistor
Disconnected, Shorted, or Misread
Unit Experienced Temperature Problems
Refrigerator Evaporator Thermistor
Disconnected, Shorted, or Misread
Error Codes Observed in Diagnostic
Mode, but not Cleared from Memory
Control Board Configured for Wrong
Model
Door or Drawer Ajar
a. Food product obstruction
b. Door/cabinet hinge problem
c. Drawer closer tripped backwards
Condenser Air Flow
a. Dirty condenser
b. Condenser fan blade obstructed or
loose
c. Condenser fan motor disconnected
d. Condenser fan motor defective
e. Power from control board fault (736TCI
& 736TR only)
f. Power from compressor controller fault
(736TFI only)
SERIES
SERIES
See Error Code Troubleshooting Guide
Check wiring from thermistor to control
board. Reconnect/repair connections.
Resistance of thermistor = 30,000-33,000
ohms at 32°F (0°C). Replace if defective.
Check wiring from thermistor to control
board. Reconnect/repair connections.
Resistance of thermistor = 30,000-33,000
ohms at 32°F (0°C). Replace if defective.
See Error Code Troubleshooting Guide
Check wiring from thermistor to control
board. Reconnect/repair connections.
Resistance of thermistor = 30,000-33,000
ohms at 32°F (0°C). Replace if defective.
Enter diagnostic mode to observe error
codes. See Error Code Troubleshooting
Guide. Verify unit was repaired for error
codes displayed. Press and hold alarm key
for 15 seconds to clear error codes.
If possible, reconfigure to correct model. If
not possible, replace control board.
a. Move obstruction.
b. See Door Hinge Operation Test Procedures
later in this section. Replace hinge if defec-
tive.
c. Trip drawer closer forward
a. Clean condenser.
b. Remove obstruction or tighten nut on motor
shaft.
c. Check continuity from motor to control board
(J7-1) on 736TCI & 736TR, from motor to
compressor controller on 736TF/I.
Reconnect / repair wiring or connections.
d. Check for AC line voltage to motor, replace
motor if defective.
e. With compressor running, check for AC line
voltage at control board (J7-1 on 736TCI &
736TR). Replace board if defective.
f. With compressor running, check for AC line
voltage from controller (736TFI only).
Replace compressor controller if defective.
8-7
Troubleshooting
TEST / ACTION
#7015817 - Revision A - January, 2010