tE1
LG Dryer
Severity: ModerateWhat Does This Error Mean?
The tE1 error means the thermistor (temperature sensor) in your LG dryer is malfunctioning. The dryer cannot accurately measure the drum temperature. This prevents the dryer from running to avoid overheating.
Affected Models
- DLEX3900B
- DLE7300WE
- DLGX4201B
- Most LG electric and gas dryers
Common Causes
- Faulty thermistor giving incorrect temperature readings
- Loose or corroded wiring connection to the thermistor
- Thermistor damaged by excessive heat from a blocked vent
- Main control board not reading the sensor signal properly
- Power surge that damaged the temperature sensor circuit
How to Fix It
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Unplug the dryer from the wall outlet and wait 10 minutes.
This performs a hard reset and clears any temporary sensor glitches.
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Check the dryer vent for blockages while the dryer is pulled out.
A blocked vent can cause overheating that damages the thermistor over time.
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Plug the dryer back in and run a timed dry cycle for 10 minutes.
If the error does not return, it was likely a temporary glitch.
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If the error returns, the thermistor needs to be tested or replaced.
The thermistor is a small sensor usually located near the blower housing.
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Call a technician to test the thermistor resistance with a multimeter.
A working thermistor should read around 10,000 ohms at room temperature.
When to Call a Professional
If a reset does not clear the error, the thermistor likely needs replacement. This repair involves accessing internal components and testing with a multimeter. Contact LG support or a licensed appliance technician. Expect repair costs of $100–$200 for a thermistor replacement.
Frequently Asked Questions
Can I still use my LG dryer with the tE1 error?
No — the dryer will not run with a thermistor error. Without a working temperature sensor, the dryer cannot regulate heat safely. This is a safety feature to prevent fires.
What is a thermistor in a dryer?
A thermistor is a small electronic temperature sensor. It measures the air temperature inside the dryer drum. The control board uses this reading to regulate the heating element. Think of it like a thermometer that tells the dryer when to turn the heat on or off.
How much does it cost to replace an LG dryer thermistor?
The thermistor part itself is inexpensive — usually $15–$40. Labor to diagnose and install it is typically $80–$150. Total repair cost is usually $100–$200. This is one of the cheaper dryer repairs.