LG Dryer Error Codes — Causes & Fix

An LG dryer code is direct diagnosis: each one names the component or condition that stopped the cycle, so there is no guesswork about where to start. Read the display, find the code below, and you will know whether it is a duct clean-out or a real part.

Most Likely Cause#

Most likely: a FlowSense duct-restriction warning or a dE door fault — the two conditions LG dryers flag most. FlowSense monitors exhaust airflow and warns when the vent is clogged, while dE means the door is not registering closed. Both stop or shorten the cycle until cleared.

LG Dryer Code Reference#

LG Dryer Model-Specific Notes#

On sensor-dry models the thermistor should read a predictable resistance near room temperature — around 70°F it sits at a known value, and a reading far off means the thermistor (or its lint coating) is the tE cause. Heater faults on electric units bring in the thermal cutoffs alongside the element, so check both before condemning the heater.

How to Run Diagnostic Mode#

Use your model's button sequence from the tech sheet to enter the service test; it energizes the heater and drum so you can watch the airflow and temperature sensors report. A code that reappears in test isolates the stage at fault.

Prevention#

• Clean the lint screen every load and the full vent run periodically to keep FlowSense quiet.
• Keep the door strike and latch clean so dE does not trip on a good door.
• Vacuum lint away from the thermistor area during vent service.

When a Code Needs Professional Service#

If a heater code such as HE2 persists after you have cleared the vent and checked the thermal cutoffs, the element or its wiring needs a technician's meter to confirm. The same is true for a thermistor code that will not clear after cleaning: the sensor reads in a tight resistance window, and matching the correct replacement to your model matters. A dryer that trips a heat code and also smells hot should be taken out of service until it is checked, because a restricted-vent overheat is a fire risk.

Repair or Replace?#

Most LG dryer codes are a vent clean, a latch fix, or a thermistor — inexpensive next to a new dryer, with the heater the only larger part. A diagnosis confirms the code's cause and gives an upfront quote. Book a technician if a heater or thermistor code returns after cleaning.

Frequently Asked Questions#

How do I run LG dryer diagnostic mode?#

Enter the service test using the button combination on your model's tech sheet. It cycles the heater, motor, and sensors so you can see which stage triggers the code — far faster than swapping parts by guess.

What does the LG dryer FlowSense indicator mean?#

FlowSense measures how freely exhaust air moves and warns when the duct is restricted. It is not a broken part — it is telling you the vent needs cleaning. Clear the full run to the outside hood and the warning clears.

How do I clear an LG dryer error code?#

Power off for a minute and restart; a transient fault clears. If the code returns, it is real — match it to the table and fix that item, since resetting alone will not resolve a clogged vent or a failed thermistor.