Understanding the Samsung Dryer tE2 Error
The tE2 error on a Samsung dryer indicates a temperature-sensing problem — typically a fault with the dryer’s secondary temperature sensor or its circuit. When the control board receives an out-of-range signal (open, short or wildly fluctuating resistance) from the thermistor or temperature sensor, the dryer will display tE2 and may stop the cycle or enter a fault mode. This error can cause longer drying times, clothes coming out damp, inconsistent heat, and in some cases can allow overheating if the control board receives bad data and cannot regulate the heater properly. Users may also notice the dryer cutting out mid-cycle, failing to start heating, or displaying other related codes if multiple sensors are affected.
Common Causes
- Faulty thermistor/temperature sensor (open or shorted)
- Broken or damaged wiring harness to the sensor
- Poor or corroded connection at sensor or control board
- Defective main control board (bad sensor input circuit)
- Blocked vent or airflow issues that stress temperature sensors (secondary contributor)
- High-limit thermostat or safety cutout failure causing abnormal temperature readings
- Physical damage from repairs or shipping that disturbed sensor or connectors
Troubleshooting Steps
- Power off and unplug the dryer: always disconnect power before inspecting internal parts.
- Locate the temperature sensors/thermistors: consult your model’s service manual; tE2 often refers to the exhaust or secondary sensor.
- Inspect wiring and connectors: look for burnt insulation, pinched wires, bent pins, or obvious corrosion at both sensor and control board ends.
- Test the thermistor with a multimeter: measure resistance at room temperature and compare to the service manual specification (most NTC thermistors read a specific ohm value at 25°C). A reading of open (OL) or short (near 0 ohms) indicates a bad sensor.
- Check continuity of the harness: verify there is continuity between the sensor plug and the control board connector to rule out a broken wire.
- Swap or temporarily replace the sensor: if you have a known-good replacement or a donor sensor, substitute it to confirm the fault clears.
- Inspect vent and airflow: clean lint buildup and verify the vent path; severe airflow restriction can cause erratic temperature readings and secondary faults.
- Examine the control board: if sensors and wiring test good, look for burned components or connectors on the PCB. A faulty input circuit on the board can cause tE2.
- Reset and test: after repairs, reconnect power, run a short cycle and monitor temperature behavior and whether the tE2 code returns.
- When in doubt, call a certified technician: if tests are inconclusive or the control board appears defectiv