LG Dryer Error Code tE1

LG Dryer tE1 Error Code — What It Means and Why It Happens

The LG dryer tE1 error indicates a temperature-sensing problem — commonly a fault with the dryer thermistor or temperature sensor circuit. This error usually appears when the control board detects a temperature reading that is out of range, inconsistent, or absent. When the dryer cannot accurately measure internal temperature it may disable heating or stop the cycle to protect the appliance and your laundry. Typical user impacts include longer drying times, garments remaining damp after a full cycle, the dryer refusing to heat, or intermittent heating. If left unaddressed, temperature sensor faults can cause repeated cycle interruptions, inefficient energy use, and in rare cases create overheating risk if the thermostat or thermal cutouts are compromised.

Common Causes

• Faulty thermistor / temperature sensor (open or shorted)
• Loose or corroded wiring or connectors in the sensor circuit
• Damaged or failed main control board that misreads sensor data
• Blown thermal fuse or high-limit thermostat affecting temperature control
• Blocked or restricted dryer vent causing overheating and erroneous readings
• Moisture or lint contamination at sensor locations or connectors
• Intermittent sensor behavior from age or mechanical damage

Troubleshooting Steps

1. Power cycle the dryer: unplug the dryer or switch off the circuit breaker for 1–2 minutes, then restore power and attempt a test cycle. Some faults clear after a full power reset.
2. Check vents and lint filter: remove lint from the screen and inspect the venting to the outside. A blocked vent can cause abnormal temperatures and trigger sensor errors.
3. Run a diagnostic / service mode: many LG dryers have a built-in diagnostic mode that logs errors. Consult the model manual to enter diagnostics and confirm the tE1 code and any related codes.
4. Inspect visible wiring and connectors: unplug the dryer and inspect the wiring harness to the thermistor and control board for loose pins, burn marks, or corrosion. Re-seat connectors securely.
5. Locate and test the thermistor: with the dryer unplugged, find the temperature sensor (often on the blower housing or rear panel). Use a multimeter to check for continuity or measure resistance and compare with the specification in the service manual. If the reading is far out of spec or no continuity is present, the thermistor likely needs replacement.
6. Check safety devices: test the thermal fuse and high-limit thermostat for continuity. A blown thermal fuse or open high-limit thermostat can affect temperature control and trigger the tE1 code.
7. Examine the heating element assembly: shorts or grounding in the heating element can change temperature behavior. Inspect for damage and test element continuity if you suspect heating-related faults.
8. Swap or test the control board if applicable: if the sensor and wiring test good, the main control board may be misreading the sensor. Replace or test the board only after confirming the sensor and wiring are functional.
9. Clear the error and re-test: after repairs or replacements, clear error codes via the diagnostic mode or power cycle, then run a full drying cycle to verify the problem is resolved.
10. When in doubt, call a qualified technician: electrical testing and component replacement involve risk. If you are not comfortable or lack the proper tools, contact an authorized LG service provider.

Maintenance / Prevention Tips

• Clean the lint filter before every load to maintain airflow and avoid overheating.
• Inspect and clean dryer venting and exterior vent cap at least twice a year.
• Use rigid or semi-rigid ducting instead of flexible plastic duct to reduce lint buildup.
• Keep the area behind the dryer clear to avoid kinking or crushing the vent hose.
• Empty and clean the moisture sensor bars inside the drum periodically for accurate readings.
• Check wiring harnesses during annual maintenance for loose connectors or wear.
• Avoid overloading the dryer; overloading can restrict airflow and stress temperature sensors.
• Replace the vent hose if you notice excessive lint accumulation or damage.
• Schedule professional cleaning of ducts every 1–2 years if you run the dryer frequently.
• Use the recommended cycle settings for the fabric type to prevent unnecessary heat stress.
• Keep the dryer level to avoid undue vibration that can damage sensors or connectors.
• Inspect the back panel seals for moisture ingress if your laundry area is humid.
• Use a surge protector to help protect the control board from voltage spikes.
• Replace aging components proactively if they show early signs of failure (brittle wires, flaky connectors).
• Document model and serial number and keep the manual handy for quick reference during troubleshooting.

FAQs

Conclusion / Safety Notice

Temperature-sensor errors like tE1 should be taken seriously. Begin troubleshooting with simple safety steps such as unplugging the dryer, cleaning lint, and inspecting the vent. If tests show a faulty thermistor, loose wiring, or a suspect control board, replace the failed component or contact an authorized technician. Never bypass safety devices or operate the dryer with known faults that could create a fire or shock hazard.

If you are not confident working with electrical components, or if your diagnostic tests point to control board or complex wiring faults, schedule service with a licensed appliance repair professional. Professional diagnosis will ensure repairs are safe and your dryer runs reliably.