LG Refrigerator Error Code tE

The tE code on an LG refrigerator indicates a wash heating error, meaning the control board detected a problem with the thermistor or heater during the wash cycle. The system uses a thermistor to monitor temperature during this internal cleaning process, and the code appears when that temperature data is outside the expected range. This can be caused by a loose connector, a faulty thermistor, or a failed wash heater.

A power reset may temporarily clear the tE code, but if the underlying problem with the thermistor or wash heater is not resolved, the code will return. Resetting is useful for confirming whether the fault is intermittent, such as a loose connector that reseats itself, but it is not a permanent fix. The root cause needs to be diagnosed and corrected.

Repair costs depend on which component has failed. Thermistor replacement parts typically fall in a lower price range, while wash heater or control board replacements can cost more for parts alone. Adding professional labor, total repair costs can range from around $100 to $350 or more depending on the specific fault and your location. Getting a diagnostic estimate from a technician before committing to repairs is recommended.

Some causes of the tE error are DIY-friendly, such as reseating a loose thermistor connector or inspecting wiring for visible damage. However, testing component resistance and continuity requires a multimeter and basic electrical knowledge. Replacing the heater or thermistor is more involved and may be best handled by a qualified technician if you are not comfortable working with refrigerator components.

The tE error relates to the wash cycle heating function rather than the primary refrigeration or freezing system, so the refrigerator may continue to cool food in the short term. However, leaving the fault unresolved can affect the long-term performance of related systems. It is best to address the error promptly rather than continuing to operate the unit with a known malfunction.