E-24 on a Samsung microwave falls in the E-2x temperature-problem range that this platform shares with its C-2x oven and range counterparts, generally pointing to a heating-related reading the control board considers out of expected bounds. On a microwave, this typically means the internal thermal sensor or thermistor is reporting a value the board can’t validate.
What Can Cause E-24
- A thermistor or thermal sensor near the magnetron or cavity that has drifted or failed
- A loose connector between the sensor and the control board
- Overheating from restricted ventilation, especially on over-the-range models with a blocked vent
- Extended heavy use that pushed the cavity temperature higher than normal before the problem triggered
What You Can Check
Unplug the microwave or cut power at the breaker for a minute, then restart it, since a genuine overheat event can trip this code and clear once the unit cools. If it’s an over-the-range model, confirm the vent isn’t blocked by grease buildup or debris, which restricts airflow and can push internal temperatures up during use. Avoid running back-to-back long cook cycles until the code is resolved.
When to Call for Service
If E-24 returns after cooling down and a power reset, the thermal sensor or its wiring likely needs testing and replacement. Continuing to use the microwave with an active thermal failure isn’t advisable, since the board may be misreading the true cavity temperature during a cook cycle. Our microwave repair service diagnoses Samsung sensor and control failures.
Independent repair information, not affiliated with Samsung.
