LG Washer tE Error Code — What It Means
The tE code on an LG washer indicates a heating error, almost always caused by a problem in the temperature-sensing circuit. LG’s official documentation identifies this as a faulty thermistor, the sensor that monitors water temperature during wash cycles. The washer cannot verify that water is heating correctly, so it stops the cycle and displays the code.
In the field, this code points to the thermistor itself, damaged wiring or connectors in the heating circuit, or occasionally a failed heating element. Control board faults are rare but possible when all other components test good. A simple power reset clears transient faults, but a recurring tE code means a component or connection has failed.
Common Causes
- Faulty thermistor The temperature sensor has failed or drifted out of spec and no longer reports accurate resistance values to the control board.
- Loose or corroded connector The plug at the thermistor or heater has backed out, corroded, or lost contact due to vibration or moisture exposure.
- Broken or shorted wiring The harness between the thermistor, heating element, and control board has chafed insulation, a broken conductor, or a pinched wire.
- Failed heating element The heater is open, shorted, or has a terminal connection problem that prevents the washer from heating water or sensing heat.
- Control board fault The main PCB has a failed input circuit or relay that cannot read the thermistor signal, even when the sensor and wiring are good.
Step-by-Step Fix
- Unplug the washer for 10 seconds, restore power, and run a test cycle to see if the code was a transient fault.
- Drain the tub if water is present by selecting no spin, pressing start/pause, then waiting for the pump cycle to finish before restarting.
- Access the thermistor and heater by unplugging the unit, removing the rear panel or lower front access, and locating the thermistor near the heater assembly or drum sump.
- Inspect all connectors at the thermistor and heating element for loose pins, corrosion, burned terminals, or backed-out housings, and clean or reseat as needed.
- Test thermistor resistance with a multimeter across its two terminals and compare the reading to your model’s service data (one common spec is around 40,000 Ω at 85°F, but consult your model’s table).
- Check heating-element continuity and measure resistance from each heater terminal to ground to confirm the element is not open or shorted.
- Replace the thermistor if resistance is out of range, open, or shorted, or replace the heater if it tests bad, then reassemble and test the washer on a hot cycle.
Parts Often Needed
| Part | Notes |
|---|---|
| LG washer thermistor / temperature sensor | Amazon | Verify the part number for your exact model before ordering. |
| LG washer heating element | Amazon | Required only if continuity or ground-fault testing shows heater failure. |
| Wire connector repair kit | Amazon | For field repair of corroded or damaged thermistor or heater plug terminals. |
When to Call a Pro
Call a qualified appliance technician if you are not comfortable working with electrical components, if the washer remains energized during disassembly, or if you lack a multimeter and the experience to interpret resistance and continuity readings. Also call for help if the thermistor, heater, and all wiring test good but the code persists, since control-board diagnosis requires circuit-level troubleshooting and board-swap confirmation. If your washer is under warranty, contact LG or an authorized service center before opening the cabinet to avoid voiding coverage.