tE3
LG Temperature Sensor Calibration / Overheat Error

Dryer shows tE3 and may not heat properly; sometimes intermittent.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Overheating due to restricted airflow, Thermistor out of calibration, Loose thermistor mounting causing poor contact, Faulty main PCB temperature circuit

How to Fix / Troubleshooting

Safety first: Unplug dryer and shut off gas if applicable.

Steps:

  • Check airflow: Clean lint filter, exhaust duct, and outside vent to ensure proper airflow. Restricted airflow can cause temperature spikes and tE3.
  • Inspect thermistor mounting: Ensure the thermistor is firmly attached to the duct or housing and making good thermal contact. Tighten screws if loose.
  • Clean around sensor: Remove lint and dust from the sensor area.
  • Reset and test: After cleaning and reassembly, run a test cycle. If tE3 returns quickly, consider replacing the thermistor and, if needed, having the control board checked.
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Repair Difficulty

Medium 3/5

Required Part

Exhaust Thermistor
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