C-24 on a Samsung oven indicates the cavity temperature is climbing faster than the control board’s expected rate, part of the same rapid-rise and ventilation problem family Samsung uses across its range, oven, and cooktop lineup. It’s a heating and airflow warning rather than a full component failure, but it will interrupt or block a cook cycle until it’s addressed.
Common Causes
- A blocked oven vent from grease buildup, foil, or debris restricting normal heat exhaust
- A temperature sensor probe that has drifted or lost firm contact with its mounting bracket
- Damaged or corroded sensor wiring between the probe and the control board
- A self-clean cycle running with heavier-than-normal soil, which can accelerate the internal rise
Steps Before Calling Us
Check the vent opening, usually located at the back of the oven cavity, and clear away any foil liners or trays sitting near it, since blocking this vent is one of the most common owner-caused triggers. Power the oven down at the breaker for a minute to reset the control board, then run a short bake cycle to see whether the code returns. If it comes back quickly or during preheat, the sensor is the more likely source rather than airflow.
When to Schedule Service
If clearing the vent doesn’t resolve it, the temperature sensor or its harness likely needs testing with a multimeter and possible replacement. Left unaddressed, this problem can cause uneven cooking or repeated cycle interruptions. Our technicians diagnose Samsung oven sensor and control issues directly; see our oven repair service for details.
Independent informational content, not affiliated with Samsung.
