APPLIANCE TROUBLESHOOTING
Sub Zero 600 Series Refrigerator Error Codes
Find plain-language explanations for Sub Zero600 Series Refrigerator error codes, common causes, and troubleshooting steps you can try before requesting repair service.
10 error codes currently available
EC 05
The refrigerator cabinet thermistor is reading open, shorted, or repeatedly reporting erratic temperatures.
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EC 07
The freezer cabinet thermistor is reading open, shorted, or repeatedly reporting erratic temperatures.
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EC 08
The freezer evaporator thermistor is reading open, shorted, or repeatedly reporting erratic temperatures.
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EC 20
The freezer defrost terminator has reported a defrost underheat condition with no expected voltage feedback.
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EC 21
The freezer defrost system detected an overheat condition.
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EC 24
The freezer defrost system detected an underheat condition.
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EC 30
The ice-maker water-valve solenoid was activated excessively.
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EC 40
The freezer compressor has been running excessively.
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EC 50
The refrigerator compressor has been running excessively.
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EE
The 600 Series refrigerator detected a service-level electronic error.
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Manufacturer information
ApplianceSignal troubleshooting information is based on manufacturer support documentation and rewritten in plain language.