Model reference

Samsung NV51M9770DS

Oven

2 documents12 error codes1 service mode

Available documentation

Service Manual

Built in electric wall oven40 pg
Covers this model
Built in electric wall oven41 pg
Covers this model

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M+

M+ Max·Samsung Oven

C-20 on my Samsung NV51M9770DS

M+

Oven sensor open (over 2950 ohms) or

From Service Manual 489541, p.33:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part DA92-00384N

Main PCB assembly

Error codes (12)

CodeMeaning

C-20Oven sensor open (over 2950 ohms) or oven sensor short (under 930 ohms).C-21Oven heating over C-23The temp probe sensor is shorted when oven is operating.C-30PCB sensor open or PCB sensor short (NTC200 on main PCB).C-31Safety error C-70The steam sensor is open or short when the steam mode is operating.C-72Drain system-related problem C-A2Cooling motor is operating abnormally.C-d0Key short error C-d1Door lock cannot find correct position for over 1 minute.C-F0Communication between the Main and Sub PBA is interrupted.C-F2Communication between the main and touch is interrupted.

Service modes (1)

diagnosticTouch UPPER and LOWER buttons simultaneously for 5 seconds

Full entry steps, exit procedures, and test sequences are available in Max.

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