LG Styler Error Code tE4 — Steam Thermistor Error
What this means
The tE4 error code on the LG Styler indicates a failure in the steam thermistor, which monitors the temperature inside the steam generator. The Styler uses steam to refresh, deodorize, and de-wrinkle garments. When the steam thermistor fails, the Styler cannot accurately control the steam generation process, which could lead to overheating or insufficient steam output. The Styler will halt steam-related functions to prevent damage. This error may still allow non-steam cycles (like drying) to operate, but the core refreshing functionality will be impaired.
Alternate codes: TE4
Step-by-step fix
4 stepsPower-reset the Styler
Unplug the Styler for 5 minutes and plug it back in. Start a steam-based cycle to see if tE4 clears.
If the error only appears during steam cycles but not drying cycles, the steam thermistor is the likely culprit.
Check the water supply
Ensure the Styler's water tank is filled to the required level. Running the steam generator without adequate water can cause temperature spikes that trigger tE4.
Use distilled or purified water to minimize mineral buildup in the steam generator.
Descale the steam generator
If you are in a hard water area, mineral scale buildup inside the steam generator can affect the thermistor readings. Run the Styler's built-in cleaning cycle if available, or have a technician descale the unit.
LG recommends running a cleaning cycle every 40 uses in hard water areas.
Contact LG service
If tE4 persists after a power reset and water check, the steam thermistor needs professional testing and likely replacement.
When to call a professional
If the tE4 code persists after a power reset and water supply check, professional service is required to test and replace the steam thermistor.
Related error codes
The duct outlet temperature sensor (thermistor) has failed or is reading an abnormal temperature.
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The compressor temperature sensor has failed or is reading outside the expected range.
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The duct inlet temperature sensor has failed or is returning abnormal readings.
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The evaporator inlet temperature sensor has failed, affecting the heat pump dehumidification system.
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The steam heater inside the Styler has failed to activate or is not heating properly.
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Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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