LG Dryer Error Code tE2 — What It Means
The tE2 error on an LG dryer generally indicates a problem with the dryer’s temperature sensing circuit — most commonly a fault with a thermistor or temperature sensor (often listed as Thermistor 2 or a second temperature sensor). When the control board receives an out-of-range, open, or shorted signal from the sensor, it triggers the tE2 code to protect the dryer from improper heating. This fault can occur because of a failed sensor, damaged wiring or connectors, a blown thermal fuse, control board issues, or even heavy lint buildup affecting airflow or sensor readings.
Common user impacts include longer drying times, inconsistent drying (some loads not drying fully), the dryer refusing to heat, or periodic shutdowns. In some scenarios, incorrect temperature readings can create safety concerns: the machine may disable heat to avoid overheating, or, if a sensor intermittently fails, it could allow elevated temperatures. If you notice burning smells, smoke, or any sign of electrical damage, stop using the dryer immediately and unplug it.
Common Causes
- Failed thermistor / temperature sensor (open or short)
- Loose, corroded, or damaged wiring harness or sensor connectors
- Blown thermal fuse or temperature cutoff (safety thermostat)
- Faulty main control board (incorrect interpretation of sensor signal)
- Restricted airflow or heavy lint buildup affecting sensor readings
- Damaged heating element or high-limit thermostat influencing temperatures
- Recent electrical surge or power interruption causing sensor or board damage
Troubleshooting Steps
- Safety first: unplug the dryer (or switch off the breaker). If you have a gas dryer, turn off the gas supply before working on it.
- Power-cycle the unit: leave unplugged for 5 minutes, then plug in and run a short cycle to see if tE2 clears (temporary glitches can sometimes reset on power cycle).
- Check airflow: clean the lint screen and inspect the vent and exhaust duct for heavy lint or obstructions. Restricted airflow can cause temperature issues.
- Visual inspection: remove the back or front panel (refer to your model’s service manual) and inspect the thermistor(s) and wiring harness for burns, corrosion, loose connectors, or broken wires.
- Test the thermistor: using a multimeter, measure resistance of the temperature sensor and compare to the specification listed in the service manual. If you don’t have the spec, a visibly open (infinite) or short (near 0 ohms) result indicates a bad sensor and replacement is likely required.
- Check thermal fuses and thermostats: test continuity on the thermal fuse and high-limit thermostats. A blown thermal fuse can indicate overheating or sensor failure and will often need replacement.
- Inspect the control board: if sensors and fuses test OK but the code persists, the main control board or its sensor input circuit might be faulty. Look for burnt components or bulging capacitor