Error Codes for the Sub-Zero 600 Series Refrigerators

CODE INDICATION

05 Refrig. Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

06 Refrig. Evaporator Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

07 Freezer Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

08 Freezer Evaporator Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s

20 Defrost Under-heat with No Voltage Feedback Through Gray/White Wire at Defrost Start

21 Defrost Overheat

22 No Voltage Feedback Through Gray/White Wire at Defrost Start

23 Defrost Overheat with No Voltage Feedback through Gray/White Wire at Defrost Start

24 Defrost Under-heat

30 Excessive Icemaker Water Valve Solenoid Activation (Exceeded 15 Seconds)

40 Excessive Freezer Compressor Run

50 Excessive Refrigerator Compressor Run

NOTE: If a refrigerator evaporator thermistor is faulty, the refrigerator compressor is not energized until compartment air temperature exceeds high offset by 5°F (3°C). SERVICE flashes and Error Code 06 is logged.

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