tE
LG
Thermistor (Temperature Sensor) Error
Washer-dryer combo displays tE during wash or dry cycles; water may not heat properly.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed wash water thermistor, Loose thermistor wiring, Shorted or open thermistor circuit, Faulty main control board temperature input
How to Fix / Troubleshooting
Safety first: Unplug the appliance and allow it to cool before accessing internal components.
- 1. Power reset:
- Unplug for 5 minutes and retry a cycle to rule out a transient error.
- 2. Access thermistor:
- Remove the rear panel.
- Locate the wash heater/thermistor assembly on the outer tub (usually near the bottom front or side).
- Identify the thermistor (small sensor with two wires) inserted into the heater housing or tub.
- 3. Inspect wiring:
- Check the thermistor connector for corrosion or loose fit.
- Follow the harness back to the main PCB for damage or pinched wires.
- 4. Test/replace thermistor:
- Use a multimeter to measure thermistor resistance; compare to LG specifications (typically 10–50 kΩ depending on temperature).
- If open or shorted, replace the LG thermistor sensor.
- 5. Control board check:
- If a known-good thermistor still triggers tE, the main PCB may be faulty and should be evaluated by a technician.
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Repair Difficulty
Hard
4/5
Required Part
LG Wash Thermistor Sensor
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