Samsung Oven Error Code C-24 — Oven Temperature Rising Too Fast
What this means
The C-24 error code indicates the oven temperature is rising abnormally fast during preheating or cooking. This can be caused by a blocked oven vent, a stuck relay on the control board that keeps the heating element on continuously, or a faulty temperature sensor providing incorrect readings. The oven shuts down as a safety precaution to prevent overheating.
Alternate codes: C24
Step-by-step fix
3 stepsCheck the oven vent
Locate the oven vent (usually at the back of the cooktop or along the top of the oven door). Ensure it is not blocked by foil, bakeware, or debris.
Never cover the oven vent — it allows heat and steam to escape and regulates temperature.
Power cycle the oven
Turn off the circuit breaker for 5 minutes and turn it back on. If a relay was temporarily stuck, a reset may clear it.
If the error returns during the next heating cycle, a hardware issue is likely.
Test the temperature sensor
Test the oven temperature sensor as described in the C-20 and C-22 procedures. If the sensor is providing inaccurate readings, the control board may misinterpret the heating rate.
A sensor reading that is too low will cause the oven to heat more aggressively.
When to call a professional
If the vent is clear and the sensor is accurate, a control board relay may be stuck. This requires professional board-level diagnosis.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Oven Temperature Sensor
Part #DG32-00002B · $10–$25
If sensor provides inaccurate readings
Electronic Control Board
Part #DG92-01129C · $100–$250
If relay is stuck in the closed position
Links may earn us a commission at no extra cost to you. We only recommend parts relevant to this repair.