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Error code reference
Samsung Oven Error Code C-31
Safety error - occurs when NTC sensor detects very hot condition for over 10 seconds.
SourceSamsung Built-in Electric Wall Oven - Service Manual (NV51M9770DS, DOB30P977DS)p. 42
Diagnostic procedure
The full C-31 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Disconnect power. Open the back cover. Check NTC sensor status (broken or soldering condition). Check resistance of relay for heater.
SourceSamsung Built-in Electric Wall Oven - Service Manual (NV51M9770DS, DOB30P977DS)p. 42
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
8 manuals in the MyPros+ library document this code for Samsung oven.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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