Samsung Range Error Code E-24

The E-24 error code on a Samsung range indicates an oven overheating error combined with a failure to reach 650°F (343°C) during standard cooking functions. This code is specifically excluded from triggering during the self-clean cycle, which itself operates at very high temperatures. The control board monitors the oven cavity temperature through a dedicated temperature sensor (also called an RTD sensor or oven temperature probe), and when the actual temperature fails to reach the target threshold under normal cooking conditions, the board interprets this as a thermal runaway or sensor circuit fault and throws the E-24 code.

The oven temperature sensor is the primary suspect when E-24 appears. This sensor changes its electrical resistance in proportion to temperature, and the control board reads that resistance to calculate the oven's internal temperature. At room temperature, the sensor should measure within a specific resistance range. If the resistance reading is out of spec, shorted, or open, the board receives inaccurate temperature data and cannot properly regulate the heating elements. To begin diagnosis, power must be disconnected, the rear cover removed, and the two harness connectors to the sensor unplugged so resistance can be measured directly at the sensor terminals.

Beyond a faulty sensor, wiring harness damage between the sensor and the control board can produce the same symptoms. Corrosion, pinched wires, or heat-damaged insulation can alter the resistance the board reads, leading to a false or inaccurate temperature reading. In less common cases, the main control board itself may be misinterpreting valid sensor data, but board replacement should only be considered after the sensor and wiring have been thoroughly evaluated.