LG Dryer Error Code tE

The tE code on an LG dryer means the control board detected an invalid heating temperature reading from the thermistor. This typically occurs when airflow is restricted by a clogged lint screen or blocked exhaust vent, causing heat levels inside the drum to fall outside of acceptable limits. It can also indicate a faulty thermistor that is sending incorrect resistance-based signals to the control board.

It is not recommended to continue running the dryer while the tE error is active. The code indicates a temperature monitoring problem, and operating the dryer without a functioning thermistor or with restricted airflow can lead to overheating, which poses a potential fire risk. Address the underlying cause before resuming normal use.

If the issue is simply a clogged lint screen or vent, the repair can be done at no cost beyond your time. Replacing a thermistor is generally an affordable repair, with parts typically ranging from $15 to $50 and professional labor adding $75 to $150 depending on your location. A control board replacement, if required, is significantly more expensive and can range from $150 to $350 or more for parts and labor.

Start by cleaning the lint screen thoroughly and inspecting the exhaust vent duct for blockages, kinks, or crushed sections. If the vent path is clear and the code returns, use a multimeter to test the thermistor for proper resistance values and check that all wiring connections to the sensor are secure. Replacing a faulty thermistor will resolve the error if the sensor is confirmed to be out of specification.

Unplugging the dryer for a few minutes may temporarily clear the tE code, but the error will return if the root cause has not been resolved. A reset does not fix a clogged vent, a failed thermistor, or a loose wiring connection. The code should only disappear permanently once the actual fault is identified and corrected.