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

  1. Turn off oven and allow sufficient cooling time — especially after self‑clean cycles.
  2. Switch power off at breaker or unplug for several minutes, then restore power.
  3. Observe if the C‑31 code clears upon reboot.

Technician Only Test and Replace PCB or Temp Sensor

  1. Disconnect power and access internal oven control area.
  2. Measure PCB temperature sensor resistance to verify out‑of‑range values.
  3. Inspect main control board for heat damage or component failure.
  4. Replace PCB temperature sensor or main control board if diagnosed faulty and verify proper operation.

Parts needed: PCB main control board, PCB temperature sensor

🛑 When to Call a Pro:
  • Error persists after power reset and cooling
  • Signs of damaged electronics or repeated overheating

Technical Specifications

wattage 3000W
component Heating Element
resistance 10-30 ohms
part_number DG94-00520A
voltage_rating 240V AC

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: 2026-01-11

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