Skip to main content
Error code reference
Samsung Oven Error Code C-20
Oven sensor open (over 2950 ohms) or oven sensor short (under 930 ohms).
SourceSamsung Built-in Electric Wall Oven - Service Manual (NV51M9770DS, DOB30P977DS)p. 36
Diagnostic procedure
The full C-20 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. Disconnect sensor harness from control. Measure sensor resistance: 1080 ohms at room temperature. If abnormal, replace oven sensor.
SourceSamsung Built-in Electric Wall Oven - Service Manual (NV51M9770DS, DOB30P977DS)p. 36
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock C-20 procedure $9.95
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
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
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax