What does LG Dryer Gets Too Hot - Causes & Fix mean?

Blocked exhaust duct or clogged lint screen restricts airflow, causing overheating. Clean the vent system and inspect the thermistor.

How do I fix LG Dryer Gets Too Hot - Causes & Fix?

Work through the step-by-step fix below. Start with the quick reset and the most common cause, then check the specific part this guide points to. Most fixes need only basic hand tools and the right replacement part.

Can I keep using my LG appliance with this error showing?

Usually not. LG appliances show this error when a part or safety circuit is out of range, so running it can stop the cycle or make the problem worse. Diagnose and clear the error before normal use.

What part is most commonly replaced for LG Dryer Gets Too Hot - Causes & Fix?

The parts that most often fix LG Dryer Gets Too Hot - Causes & Fix are listed in the parts section of this guide. Match the part to your exact model and serial number before you buy.

Is LG Dryer Gets Too Hot - Causes & Fix a DIY repair or do I need a technician?

Many fixes are DIY-friendly with basic tools, such as door switches, drain pumps, water inlet valves, thermostats, heating elements, and filters. Sealed-system, refrigerant, gas, or high-voltage work should go to a licensed technician for safety.

LG Dryer Gets Too Hot - Causes & Fix

LG Dryer Gets Too Hot — What’s Happening

When an LG dryer gets too hot, you’re seeing an overheating or airflow restriction condition. LG may display codes like tE1, tE2, or tE3 (thermistor temperature sensor faults) or HC, hE, HC4, or 1 HC (overheating messages tied to blocked exhaust or abnormal temperature rise). If no code appears but clothes are too hot or the cabinet is overheating, the problem is usually still airflow restriction, a faulty thermistor, or a heating control issue.

LG specifically links codes like d75, d80, d90, and d95 to clogged exhaust ducts. Lint buildup at the rear exhaust duct, long vent runs, crushed ducting, or multiple elbows all reduce airflow and cause the dryer to run hotter than normal. The thermistor measures drum temperature, so if it fails or its wiring is loose, the control board can’t regulate heat properly. Heating element faults and incorrect 240 V power supply on electric models can also create abnormal operation.

Jump to Fix

Most Likely Causes

Clogged exhaust duct or blocked rear vent LG identifies clogged exhaust ducts and lint buildup at the rear exhaust as the primary cause of long drying times and vent restriction codes.
Restricted airflow from long or crushed vent runs Long duct runs, crushed flexible ducting, or multiple elbows reduce airflow and cause overheating, per LG’s vent guidance.
Failed thermistor or loose thermistor wiring LG tE codes point to the thermistor (temperature sensor) or its harness, which prevents proper temperature regulation.
Dirty lint screen or lint filter housing A clogged lint screen or lint buildup in the filter housing restricts airflow at the drum intake, raising internal temperatures.
Faulty heating element A shorted or malfunctioning heating element can run continuously or erratically, causing overheating.
Blown thermal fuse or thermal cut-off A failed thermal fuse interrupts the heating circuit but may signal prior overheating events or sensor faults.
Incorrect 240 V power supply (electric models) LG specifies 240 V from two 120 V legs, and incorrect supply can create abnormal heating behavior.

How to Diagnose and Fix

Check the display for any fault codes (tE1, tE2, tE3, HC, hE, HC4, d75, d80, d90, d95) to guide your diagnosis.
Remove and clean the lint screen thoroughly, then inspect the lint filter housing for buildup.
Disconnect the exhaust duct at the rear of the dryer and check the rear exhaust port, the full duct run, the wall cap, and all elbows for lint blockage or crushing.
Turn off the circuit breaker for at least 10 seconds (or unplug the dryer) to reset the control board, then restore power.
Run the dryer briefly with the vent disconnected to see if temperatures normalize, which confirms the vent system is the fault.
Unplug the dryer, locate the thermistor (usually on the blower housing or heater duct), and measure its resistance with a multimeter (expect about 10,000 ohms at room temperature).
Inspect the thermistor wiring and connector for corrosion, breaks, or heat damage.
Check the heating element for continuity and inspect the thermal fuse or thermal cut-off for continuity if overheating persists.

Parts You Might Need

Part	Notes
LG dryer thermistor	Amazon \| Temperature sensor, about 10,000 ohms at room temperature
LG dryer heating element	Amazon \| Check continuity, replace if shorted or open
LG dryer thermal fuse	Amazon \| One-time safety device, replace if open
Rigid aluminum vent duct	Amazon \| Reduces lint buildup and airflow restriction

If your appliance also shows a code on the display, these match this problem:

When to Call a Pro

Call a tech if you’ve cleaned the entire vent system and the dryer still overheats or displays tE or HC codes. Thermistor replacement, heating element testing, and control board diagnosis require disassembly and live voltage checks. If you have a gas dryer and suspect burner or ignition problems, have a qualified technician handle all gas connections and burner service. A pro can also verify correct 240 V supply on electric models and measure airflow to confirm the vent system meets LG’s installation requirements.