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Error code reference
Sub-Zero Refrigerator Error Code 20 4 56
Defrost heater triac short.
SourceSub-Zero Classic (formerly Built-In) Enhancements (7040319): After Serial 4380000: Service Manualp. 2-40
Where this code is documented
1 manual in the MyPros+ library documents this code for Sub-Zero refrigerator.
Models covered by the manuals that document this code
- ICBBI-30U/O-LH
- ICBBI-30U/O-RH
- ICBBI-30U/S/PH-LH
- ICBBI-30U/S/PH-RH
- ICBBI-30U/S/TH-LH
- ICBBI-30U/S/TH-RH
- ICBBI-30UG/O-LH
- ICBBI-30UG/O-RH
- ICBBI-30UG/S/TH-LH
- ICBBI-30UG/S/TH-RH
- ICBBI-36F/O-LH
- ICBBI-36F/O-RH
- ICBBI-36F/S/PH-LH
- ICBBI-36F/S/PH-RH
- ICBBI-36F/S/TH-LH
- ICBBI-36F/S/TH-RH
- ICBBI-36R/O-LH
- ICBBI-36R/O-RH
- ICBBI-36R/S/PH-LH
- ICBBI-36R/S/PH-RH
- ICBBI-36R/S/TH-LH
- ICBBI-36R/S/TH-RH
- ICBBI-36RG/O-LH
- ICBBI-36RG/O-RH
More models are covered than are listed here.
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