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Sub-Zero 642/F

Sub-Zero 642/F
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Electronic Control System
600 Series
(Prior to #1810000)
3-13
#3756270 - Revision B - January, 2006
SERVICE
Figure 3-20. “EE” Displayed for Freezer Temp. with “SERVICE”
Flashing = Freezer Compartment Thermistor Faulty
SERVICE
Figure 3-21. “EE” Displayed for Refrigerator Temp. with “SERVICE”
Flashing = Refrigerator Compartment Thermistor Faulty
SERVICE
Figure 3-22. Freezer and Refrigerator Temps OK with “SERVICE”
Flashing = Refrigerator Evaporator Thermistor Faulty or Line Separated
POSSIBLE ERROR DISPLAYS
The diagrams below illustrate what a customer may see on the LCD if there is a problem/error with the unit. Below
each diagram is a description of what could be causing the error indicator. (See Figures 3-20 through 3-24.)
NOTE: “EE” indicates a thermistor error.
NOTE: To clear an error display, the cause must be corrected, then the unit switched off and back on with the UNIT
ON/OFF key.
ICE
SERVICE
Figure 3-23. Freezer and Refrigerator Temps OK with “SERVICE” and “ICE”
Flashing = Water Valve Energized Too Long
V ACUUM
CONDENSER
Figure 3-24. “VACUUM CONDENSER” Flashing = Excessive Compressor Run, Possible Condenser Cleaning
Needed, but Could Be a Result of Other Problems Which Cause Excessive Compressor Run
NOTE: To clear error indicators, the cause must be corrected and the unit must be switched off, then back on using
the UNIT ON/OFF key.

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