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Model reference

Sub-Zero 2290992

Refrigerator

1 document12 error codes9 service modes

Available documentation

Service Manual

  • Sub Zero Built In Refrigerator Service Manual 600-2 Series169 pg
    Covers this model
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Error codes (12)

CodeMeaning
05Refrigerator cabinet thermistor read open or shorted for 10+ seconds, or…06Refrigerator evaporator thermistor read open or shorted for 10+ seconds, or…07Freezer cabinet thermistor read open or shorted for 10+ seconds, or repeatedly…08Freezer evaporator thermistor read open or shorted for 10+ seconds, or…20Defrost under-heat with no voltage feedback through gray/white wire at defrost…21Defrost overheat condition detected.22No voltage feedback through gray/white wire at defrost start.23Defrost overheat with no voltage feedback through gray/white wire at defrost…24Defrost under-heat condition detected.30Excessive icemaker water valve solenoid activation (exceeded 15 seconds, 5…40Excessive freezer compressor run time (ran 100% for 6 hours).50Excessive refrigerator compressor run time (ran 100% for 4 hours).

Service modes (9)

  • Diagnostic ModeWith unit ON, press and hold either COLDER key, then press the UNIT ON/OFF key, then release both…
  • Manual Compartment Disable ModeSwitch unit OFF using UNIT ON/OFF key
  • Manual Component Activation ModeWith unit ON, press and hold the desired compartment COLDER key and UNIT ON/OFF key for 10 seconds.
  • Manual Freezer Evaporator DefrostPress and hold the ICE ON/OFF key for 5 seconds, then release.
  • Sabbath ModeSwitch unit OFF using UNIT ON/OFF key
  • Showroom ModeSwitch unit OFF using UNIT ON/OFF key
  • Temperature Log Recall Mode (Compartment and Evaporator)With unit ON, enter Diagnostic Mode first
  • Temperature Log Recall Mode (Compartment Only)With unit ON, press and hold the desired compartment WARMER key, then press the UNIT ON/OFF key…
  • Temperature Units Selection ModeMust be performed within the first minute after switching unit ON

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