GE Dryer Error Code tE2

The tE2 error code on a GE dryer indicates a fault with the inlet thermistor, which is the temperature-sensing component responsible for monitoring the temperature of air entering the drum. The control board triggers this code when the thermistor's voltage signal falls outside an acceptable range: either above 4.8 volts for more than 5 seconds or below 0.2 volts for more than 5 seconds. Under normal operating conditions, the thermistor produces a voltage signal that varies in proportion to temperature, allowing the control board to regulate heat output accurately. A reading that is persistently out of this voltage window tells the board the sensor data is unreliable.

The inlet thermistor is a negative temperature coefficient (NTC) resistive device. As temperature rises, its resistance drops, which in turn changes the voltage the control board reads across it. A voltage above 4.8V typically points to an open circuit condition, meaning the thermistor itself has failed open or there is a break in the wiring between the sensor and the board. A voltage below 0.2V typically indicates a short circuit, where the thermistor has failed shorted or wiring has shorted to ground. Both conditions prevent the dryer from accurately measuring inlet air temperature.

Because the dryer cannot confirm safe and accurate temperature data, it will shut down heating or stop the cycle entirely to prevent overheating or damage. Diagnosis should begin at the connector and wiring harness serving the inlet thermistor, as loose connections, corrosion, or damaged wire insulation are common contributors. If the connector and wiring check out, the thermistor itself should be tested for correct resistance values at a known temperature and replaced if readings are out of specification.