Step-by-Step DIY Fix Guide
- SAFETY: Unplug the dryer.
- Clean the lint filter and check the exhaust duct for blockage — a blocked duct causes overheating that can damage thermistors.
- Reset by unplugging for 2–3 minutes, then restore power and retry the cycle.
- If tE1, tE2, or tE3 returns, call LG Support at 1-800-243-0000.
If it's still not filling correctly
- If normal household water flow looks good but the code returns, the inlet-valve or fill-sensing path becomes more likely.
- If airflow still seems weak after the basic checks, the fan path or a deeper obstruction becomes more likely.
- If the warning returns immediately after a clean restart, the sensor or wiring path becomes more likely than a one-time glitch.
What This Error Means
Error tE1 on your LG dryer means: The dryer has detected a fault in one of its thermistors (temperature sensors). tE1 typically indicates the exhaust thermistor, tE2 the inlet thermistor, and tE3 a secondary thermistor — all three variants indicate the same class of problem at different sensor locations. The dryer has stopped to prevent overheating. Also displayed as tE2, tE3 on some LG models. The dryer's self-diagnostic system has detected this condition and stopped or paused the cycle.
The most frequent cause is failed thermistor — the sensor has drifted out of its normal resistance range or failed open/short. Work through the causes and fix steps below in order — many LG dryer errors are resolved without a service call.
LG's official guidance classifies tE1 as a technician-only fault. A power reset is the only DIY step — if the code returns, contact LG Support at 1-800-243-0000.
Electronics and sensor faults require professional diagnosis. A 2–3 minute power reset resolves transient faults. If the code returns after a reset, the physical component has failed and will not recover without replacement.
Most Likely Cause by Symptom
The LG dryer may stop, pause, or refuse to complete the cycle normally.
Likely cause: Failed thermistor — the sensor has drifted out of its normal resistance range or failed open/short
Check first: SAFETY: Unplug the dryer.
The warning may return immediately because the appliance is detecting an internal fault.
Likely cause: Wiring fault between the thermistor and the control board — loose connector or broken wire
Check first: Clean the lint filter and check the exhaust duct for blockage — a blocked duct causes overheating that can damage thermistors.
Common Causes
- Failed thermistor — the sensor has drifted out of its normal resistance range or failed open/short
- Wiring fault between the thermistor and the control board — loose connector or broken wire
- Thermistor damaged by a previous overheating event caused by a blocked duct or clogged lint filter
- Control board fault affecting the thermistor input circuit
What Not to Do
- Do not run the dryer with a tE code active — without accurate temperature sensing, the dryer cannot regulate heat and may overheat
Model and Display Variation Notes
Model-family notes
- LG dryer display wording and code formats can vary by series.
- If your model behaves differently, check the owner manual before trying any deeper maintenance step.
- Some models may display the same fault as tE1, tE2, tE3.
Display and panel differences
- Some control panels show this issue as tE1, tE2, tE3 instead of only tE1.
- Panel wording and whether the code appears with letters, numbers, or a longer variant can differ by model family.
Parts, Tools and Service Options
Service option
LG service visit if the warning returns after the basic checks are complete.
Manual and model check
Check your exact model and manual before ordering any LG dryer parts.
Common parts
- Exhaust thermistor for tE1 ($10–$25)
- Inlet thermistor for tE2 ($10–$25)
- Secondary thermistor for tE3 ($10–$25)
- Main control board if sensor input circuit has failed ($60–$150)
This section stays service-first because the page points more strongly toward support or professional repair than a routine parts purchase.
When Not to Keep Troubleshooting
Any tE code recurs after a 2–3 minute power reset
How to Prevent It Recurring
- Clean the lint filter before every load and clean the exhaust duct annually — sustained overheating from blocked airflow is the leading cause of thermistor failure
Related Error Codes
D80
LG dryer error D80 usually means the exhaust duct is heavily restricted and airflow is no longer safe or efficient.
nP
The dryer is running but the heating element is receiving no power. Clothes will tumble but will not dry — the air is not being heated. This code indicates an electrical supply problem rather than a failed element.
HS
The dryer's humidity sensor has returned an abnormal reading or has stopped responding. Auto-dry cycles use this sensor to detect when clothes are dry and stop the cycle — a fault here can cause over-drying, under-drying, or a stopped cycle.
Extra notes
- This page is based on LG support material and stays conservative where model-specific guidance may vary.
- The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.
Source and model notes
Last reviewed: 2026-04-08
Based on: Based on LG support material and edited into consumer-safe guidance for the exact code family on this page.
Model coverage note: LG dryer code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.
Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.
Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.