LG Dryer Error Code tE2

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

1. 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.
2. 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).
3. Check airflow: clean the lint screen and inspect the vent and exhaust duct for heavy lint or obstructions. Restricted airflow can cause temperature issues.
4. 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.
5. 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.
6. 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.
7. 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 capacitors on the PCB.
8. Replace parts in order of likelihood: typically start with the thermistor, then fuses/thermostats, then wiring, and finally the control board. After each repair, restore power and verify the code is cleared and the dryer operates normally.
9. When in doubt call a pro: if you’re not comfortable testing components, or if it’s a gas model, contact an authorized LG service technician to avoid safety hazards.

Maintenance / Prevention Tips

• Clean the lint screen after every load to maintain airflow and reduce sensor issues.
• Inspect and clean the dryer vent and ductwork at least every 6–12 months; more often if you run the dryer frequently.
• Use a rigid metal vent pipe rather than flexible foil or plastic to avoid crushes and blockages.
• Check the outdoor vent hood for debris, bird nests, or a stuck flap and clear as needed.
• Do not overload the dryer; overloading reduces airflow and increases stress on sensors and heating components.
• Run a lint-cleaning brush through the vent line annually or hire a vent-cleaning service regularly.
• Keep the dryer installation area clear and well-ventilated to help dissipate heat.
• Inspect wiring and connectors if the dryer is moved or bumped during installation or cleaning.
• Replace worn or frayed power cords and damaged plugs promptly to avoid electrical faults.
• Schedule periodic professional maintenance if the dryer sees heavy commercial-style use at home.
• Address intermittent error codes early to prevent escalation to more serious failures.
• Do not use the dryer if you smell burning or see sparks; unplug and call service immediately.
• Follow manufacturer heat settings and fabric load recommendations to reduce stress on heating components.
• Keep the dryer level to avoid undue wear on drum bearings and sensors that may shift with vibration.
• If you replace parts, use OEM or recommended-spec components to ensure accurate sensor function.
• Document model and serial numbers and retain the manual so you can quickly reference service specs or resistance charts.

FAQs

Q: Is the tE2 code dangerous?

A: tE2 itself is a diagnostic code that usually points to a sensor problem. The dryer often disables heating when it detects temperature sensor faults to prevent overheating, which is a safety feature. However, any sign of burning smell, smoke, or electrical damage requires immediate power-off and professional service.

Q: Can I fix tE2 myself?

A: If you are comfortable with basic electrical troubleshooting and have a multimeter, you can check the thermistor and thermal fuse following safety precautions (unplug first). Replacing a thermistor or thermal fuse is typically a straightforward repair. For gas dryers, or if the control board is suspected, or you are uncertain, hire a qualified technician.

Q: How much does a repair usually cost?

A: Costs vary by part and labor rates. A thermistor or temperature sensor part is generally inexpensive; labor and diagnostics add to the cost. Replacing a control board is more costly. Expect a small-sensor repair to be relatively low cost, while control board replacement can be several times higher.

Q: Why does the tE2 code appear intermittently?

A: Intermittent codes often point to wiring/connectors (loose or corroded), a sensor starting to fail, or a marginal control board input. Vibration or temperature changes can make a weak connector or cracked solder joint behave inconsistently.

Q: Will replacing the thermistor always fix tE2?

A: Replacing a failed thermistor fixes many tE2 cases, but if wiring, connectors, thermal fuses, or the control board are faulty, the issue may persist. Proper diagnosis (testing components and continuity) helps ensure you replace the correct part.

Conclusion & Safety Notice

tE2 on an LG dryer is usually a temperature-sensor related fault that should be addressed promptly to restore efficient drying and maintain safety. Always unplug the dryer before inspecting or servicing internal components. For gas models, shut off the gas supply and involve a qualified technician for any component that interfaces with the gas system. If you are unsure about electrical testing, suspect control board damage, or detect signs of burning or smoke, stop using the dryer and call an authorized LG service provider or licensed appliance repair technician.

When in doubt, prioritise safety over speed: a professional technician can diagnose correctly and help avoid unnecessary part replacements or safety risks. If your dryer is under warranty, contact LG support before attempting repairs yourself.