Samsung Oven Error Code C-31

C-31Samsung Oven

What this code means

Safety error - occurs when NTC sensor detects very hot condition for over 10 seconds.

First step from the service manual

Disconnect power. Open the back cover. Check NTC sensor status (broken or soldering condition). Check resistance of relay for heater.

Next steps: diagnose the root cause

1
Verify the error code is active

Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.

2
Get the full diagnostic procedure

Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.

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Related Samsung oven error codes

-dC-Partition is inserted or removed while the oven is operating.C-10Gas sensor is open or shorted when the speed convection oven is operating in…C-20Oven sensor open (over 2950 ohms) or oven sensor short (under 930 ohms).C-21Oven heating overC-22Oven sensor is shorted when the oven is operating.C-23Internal temperature rises abnormally high during oven operation.C-24Temperature probe sensor is shorted when oven is operating.C-30PCB temp sensor is open or shorted when the oven is operating.C-32PCB temp sensor is shorted when the oven is operating.C-33PCB temperature rises abnormally high.C-41Steam sensor is open when the steam mode is on.C-42Steam sensor is shorted when the steam mode is on.C-51Drain system related problem; occurs when water level sensor senses water…C-70The steam sensor is open or short when the steam mode is operating.C-72Drain system problem occurs when water level sensor senses water remaining…C-A2Cooling motor is operating abnormally.C-d0Key short errorC-d1Door lock cannot find correct position for over 1 minute.C-d5Door lock is mispositioned.C-F0Communication between the Main and Sub PCB is interrupted.CA-1Cooling motor is operating abnormally.Cd-2Door lock is mispositioned.CF-1Communication between the Main and Sub PCB is interrupted.CF-2Communication between the Main and Touch PCB is interrupted.E-08Oven fails to reach 100°F (38°C) within 10 minutes from room temperature…FSelf-clean mode malfunction; oven is malfunctioning in the self-clean mode.H-3Self-diagnosis error for Lower Bake heater (Lower Oven Only).H-4Self-diagnosis error for Lower Broil heater (Lower Oven Only).
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