Samsung Oven Error C-31
⚡ Quick Answer: The Samsung Oven error C-31 indicates a PCB over temperature condition, where the oven's internal diagnostics have detected excessive heat related to ... ✅ DIY Fixable
What Does Error C-31 Mean?
The Samsung Oven error C-31 indicates a PCB over temperature condition, where the oven's internal diagnostics have detected excessive heat related to the temperature sensor. This may result in inconsistent heating, failure to heat, or the oven locking out functionality, particularly after high-heat operations like the self-clean cycle. If the error persists after cooling and power resets, further investigation is necessary.
Common Symptoms:
- Error appears on display and oven may lock out functionality
- Often occurs after high‑heat operations such as self‑clean cycle
- Internal safety may prevent door unlocking or operation
Possible Causes
- PCB Over Temperature / PCB Temp Sensor Below Threshold (medium)
- Faulty or Overheated Main Control Board (medium)
How to Fix Error C-31
DIY Fix Basic Reset and Cooling
- Turn off oven and allow sufficient cooling time — especially after self‑clean cycles.
- Switch power off at breaker or unplug for several minutes, then restore power.
- Observe if the C‑31 code clears upon reboot.
Technician Only Test and Replace PCB or Temp Sensor
- Disconnect power and access internal oven control area.
- Measure PCB temperature sensor resistance to verify out‑of‑range values.
- Inspect main control board for heat damage or component failure.
- Replace PCB temperature sensor or main control board if diagnosed faulty and verify proper operation.
Parts needed: PCB main control board, PCB temperature sensor
- Error persists after power reset and cooling
- Signs of damaged electronics or repeated overheating
Next step
Choose the next step for C-31
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
- Typical part-only price
- $120 - $280
- DIY difficulty
- Medium
- Estimated time
- 20-40 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
Model-compatible Oven parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Non-Scratch Cooktop Cleaner
A routine surface-care product. Confirm that it is approved for the specific glass, ceramic, enamel, or stainless finish.
Oven Thermometer
A diagnostic aid for comparing cavity temperature during a controlled check. It does not prove which internal component has failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does C-31 error mean on Samsung Oven?
The C-31 error means there's a PCB over temperature condition, affecting heating and functionality.
Can I fix Samsung Oven C-31 error myself?
Yes, you can perform a basic reset and allow the oven to cool down before checking if the error clears.
How much does it cost to fix C-31 error?
Repair costs for the C-31 error can range from $150 to $500+, depending on parts and labor.
When should I call a technician for C-31?
Call a technician if the error persists after a power reset or if you notice signs of damaged electronics.
Data last verified: 2026-07-31
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