LG dryer — Error Code tE
The control unit has identified an invalid resistance value coming from the thermistor.
What it means
The tE (Thermistor Error) notification on your LG dryer points to a breakdown in the temperature sensing system. The main control board monitors the NTC (Negative Temperature Coefficient) thermistor to keep the drum at the right heat. In a standard 70°F environment, a functional LG dryer thermistor should show a resistance of about 10k ohms. If the board detects that the circuit is either infinite (open) or zero (shorted), it shuts down the heating process instantly to prevent overheating, thermal runaway, or fire risks. This error is almost always electrical, resulting from a faulty thermistor on the blower housing, damaged internal wiring, or a control board that can no longer process the sensor's DC voltage.
Likely Causes
- 1 Failed NTC ThermistorThe sensor has either shorted out or opened up internally. This is the most frequent reason for a tE code.
- 2 Wiring Harness or Connection IssuesCorroded, loose, or severed wires between the thermistor and the control board stop the signal from reaching the CPU.
- 3 Main Control Board FailureThe sensing circuit on the board may be compromised—often by a power spike—meaning it cannot read the sensor's resistance correctly even if the sensor is functioning perfectly.
- 4 Severe Airflow RestrictionWhile typically associated with different error codes, chronic heat buildup from a blocked vent can cause the thermistor to fail permanently.
How to clear / reset
To attempt a quick reset, disconnect the dryer from power or flip the circuit breaker for 3 to 5 minutes. After restoring power, try starting a cycle. If the error was just a minor software glitch, the machine might run fine. However, because tE is a hard hardware fault, the code will likely reappear immediately if the thermistor or wiring is truly broken. The only way to permanently clear the fault is to replace the damaged part and restore the proper resistance to the circuit.
Common replacement parts
When to call a pro
Reach out to us if a hard reset fails to clear the tE code or if you aren't comfortable using a multimeter to check live voltage or resistance. Correct diagnosis involves reaching the blower housing, checking the thermistor for roughly 10k ohms, and verifying continuity to the main board. If the sensor tests fine, the control board is likely the culprit. A-Fix Service provides a $90 diagnostic fee (waived if you approve the repair) and includes a 1-year parts and labor warranty to ensure your dryer is back in action for the rainy PNW season.
FAQs
What is the typical cost to resolve an LG dryer tE code?
For a simple thermistor replacement, you are looking at $150 to $250 covering parts and labor. If the main board needs to be swapped, the cost generally ranges from $300 to $450.
Can I just bypass the thermistor to keep drying clothes?
Never. Bypassing this sensor removes your dryer's safety mechanism, creating a major fire hazard and risking permanent damage to your machine or home.
Will the tE error eventually clear on its own?
No. Unless it was a brief power surge, the tE code signals a physical electrical break or short that requires manual testing and part replacement.
How much time does the repair usually take?
A trained professional can typically dismantle the dryer, diagnose the circuit, swap the thermistor, and verify the repair in under an hour.
Could a clogged vent be the reason for this error?
It can be a contributing factor. While blocked vents usually trigger D80/D90 codes, the constant overheating can lead to the premature failure of the thermistor.
Need help with tE?
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