SamsungOvens & Ranges2017–present

Samsung DOC30M977D Series Ovens & Ranges (2017)

Covers Service manual exact match: NQ70M7770DG, Service manual exact match: DOC30M977DS

12 error codes

18 parts documented

Error Codes

Click any code for detailed troubleshooting steps

Code	Meaning	Severity
C-20	Temperature sensor open circuit or short detected during operation	Critical
C-21	Temperature exceeds safe operating limits	Critical
C-23	Temperature probe sensor short circuit detected	Critical
C-30	PCB internal temperature sensor malfunction	Critical
C-31	Control board temperature exceeds safe limit	Critical
C-70	Steam temperature sensor circuit open or shorted	Critical
C-72	Water not draining from oven cavity after cycle completion	Critical
C-A2	Magnetron or convection cooling fan not operating correctly	Moderate

Showing 8 of 12 error codes

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