SamsungOvens & Ranges2020–present

Samsung NV51M9770S Series Ovens & Ranges (2020)

Covers Service manual exact match: NV51M9770SS, Service manual exact match: DOB30P977SS

12 error codes

16 parts documented

Error Codes

Click any code for detailed troubleshooting steps

Code	Meaning	Severity
C-20	Oven temperature sensor malfunction	Critical
C-21	Oven temperature control failure - overheating	Critical
C-23	Temperature probe circuit fault	Moderate
C-30	PCB temperature sensor malfunction	Critical
C-31	Safety interlock triggered - excessive temperature detected	Critical
C-70	Steam generation temperature sensor circuit open	Moderate
C-72	Steam drain pump circuit malfunction	Moderate
C-A2	Cooling fan motor circuit malfunction	Moderate

Showing 8 of 12 error codes

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