LG Dryer Error Code tE5 — What It Means & How to Fix It

What Does This Error Mean?

Error code tE5 on an LG dryer indicates that the high-limit thermostat has detected an over-temperature condition. The high-limit thermostat is a safety device — it shuts off the heat if the dryer gets dangerously hot. When it trips, the dryer stops the heating cycle and sets tE5. The most common cause is a blocked exhaust vent trapping heat inside the dryer. Do not ignore this — a dryer that consistently overheats is a fire hazard.

Affected Models

LG Front-Load Dryers
LG DLE series electric dryers
LG DLG series gas dryers
LG DLGX series
LG DLEX steam dryers

Common Causes

A blocked or restricted exhaust vent duct trapping heat inside the dryer
A failed high-limit thermostat that has tripped and will not reset
A shorted heating element (electric models) running hotter than it should
A gas valve issue causing the burner to run continuously (gas models)
Lint buildup inside the dryer cabinet around the heating element area

How to Fix It

Stop using the dryer immediately. Overheating is a fire risk. Allow the dryer to cool completely — at least 30 minutes — before inspecting anything.

Never run a dryer that has shown repeated tE5 codes without finding the root cause.
Inspect and clean the exhaust vent system. Disconnect the vent hose from the back of the dryer and check for lint clogs. Run a vent brush through the entire duct run from the dryer to the outside wall. Remove the outside vent cover and check for blockages.

A vent that is clogged with lint is the single most common cause of dryer overheating. Clean the full run of duct, not just the hose at the back of the dryer.
Check the lint filter and the filter housing. A clogged lint filter restricts airflow through the dryer, causing heat to build up. Clean the filter before every load and periodically clean the filter housing with a vacuum.

Even a thin film of fabric softener residue on the lint screen can reduce airflow — wash the screen with warm soapy water monthly.
Access the dryer cabinet and inspect for lint buildup around the heating element. Unplug the dryer first, then remove the back or front panel. Use a vacuum to remove any lint from around the heating element or burner assembly.

Lint around the heating element is a significant fire hazard — remove it carefully.
Test the high-limit thermostat with a multimeter for continuity. A good thermostat reads near 0 ohms (continuity). An open reading (infinity) means it has tripped and failed open — it needs to be replaced.

Always also test the heating element or have a technician check the gas valve. If the thermostat keeps failing, the heat source is running too hot and must be corrected.

When to Call a Professional

If cleaning the vent does not resolve tE5 and the code returns on the next cycle, the high-limit thermostat may need to be replaced. High-limit thermostats cost $10-$30 and are usually accessible from the back panel. However, if the thermostat keeps failing, the underlying cause — a shorted heater or faulty gas valve — needs to be diagnosed by a technician. Do not keep resetting a dryer that repeatedly overheats.

Frequently Asked Questions

Is a dryer that shows tE5 dangerous?

It can be. The tE5 code means the dryer reached a dangerously high temperature — high enough to trip the safety thermostat. A dryer that routinely overheats is a leading cause of house fires. Do not dismiss this code. Find and fix the root cause before using the dryer again.

Can I reset tE5 by unplugging the dryer?

A hard reset clears the code and allows the dryer to run again. But if the underlying cause — a blocked vent, a failed heater, lint buildup — is not fixed, the dryer will overheat again and tE5 will return. The code is a symptom; clearing it without fixing the cause is dangerous.

How much does it cost to fix tE5?

Cleaning the vent yourself: free. A high-limit thermostat part: $10-$30. A replacement heating element: $20-$60. Professional vent cleaning service: $80-$150. A technician service call for diagnosis and repair: $100-$250.