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Error code reference
Sub-Zero Ice Maker Error Codes
4 error codes documented with diagnostic procedures.
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Clean Light FlashingIndicates a short or open thermistor has been detected by the electronic control board.Rapid flashing lightControl board indicator light flashes rapidly, indicating temperatures exceeded 170°F…REPLACE FILTERRed indicator light illuminates after 8000 freeze/harvest cycles to indicate the water…Slow flashing lightControl board indicator light flashes slowly, indicating the liquid line thermistor is…
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