LG Dishwasher Error Code E6

The E6 code on an LG dishwasher means the control board has detected a short circuit in the thermistor, which is the temperature sensor inside the wash tub. This fault can occur in any operating mode. The dishwasher stops running to prevent potential damage from unregulated water temperature. The issue can stem from the sensor itself, its wiring, or the connector.

You should not continue running the dishwasher while the E6 error is active. The thermistor is responsible for monitoring water temperature throughout the cycle, and a short circuit means the control board cannot accurately track that temperature. Running the appliance without reliable temperature sensing could result in overheating or improper wash performance. Address the fault before resuming normal use.

A reset may temporarily clear the E6 error code, but the fault will return if the underlying hardware problem has not been resolved. Because the error is triggered by an ongoing electrical condition in the thermistor circuit, the control board will detect the short again as soon as it checks the sensor. A permanent fix requires addressing the cause, whether that is the connector, the thermistor, or the wiring.

Some causes of the E6 error are DIY-accessible, particularly checking and reseating the thermistor connector, which requires no special tools. If the connector is secure, testing the thermistor with a multimeter and inspecting the wiring harness are reasonable next steps for a knowledgeable DIYer. Replacing the thermistor is also a straightforward repair in most cases. Control board replacement is more complex and may warrant professional service.

If the fix is simply reseating a connector, there is no parts cost involved. A replacement thermistor typically falls in the range of $15 to $50 depending on the specific model. If the wiring harness needs replacement, costs can range from $30 to $100 or more for parts. Professional labor charges vary by region but commonly run between $100 and $200 for a thermistor-related repair.