SamsungOvens & Ranges2017–present

Samsung DOB30M977D Series Ovens & Ranges (2017)

Covers Service manual exact match: DOB30M977D*

12 error codes

21 parts documented

Error Codes

Click any code for detailed troubleshooting steps

Code	Meaning	Severity
C-20	Temperature sensor is disconnected or failed - oven cannot measure temperature	Critical
C-21	Oven temperature control circuit failure - may cause overheating hazard	Critical
C-23	Meat temperature probe circuit is shorted	Moderate
C-30	Internal PCB thermal protection sensor not responding	Critical
C-31	Control board is overheating - potential safety shutdown	Critical
C-70	Steam function cannot measure steam temperature	Critical
C-72	Steam drainage pump not removing water completely	Critical
C-A2	Cooling fan motor not responding to control signals	Moderate

Showing 8 of 12 error codes

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