LG Dryer Error Code E13 — What It Means & How to Fix It

What Does This Error Mean?

Error code E13 on an LG dryer indicates a fault with the lint filter sensor or the filter check system. Some LG dryer models monitor the lint filter and alert you when airflow is restricted. With an E13 code, the dryer has detected that the lint filter may be clogged or that the sensor checking the filter has a fault. This is a safety-related code — a clogged lint filter restricts airflow, causes overheating, and is a fire hazard. Clean the filter and check the sensor before running another load.

Affected Models

LG Front-Load Dryers with filter sensor
LG DLGX series
LG DLEX series steam dryers
LG TurboSteam dryers
LG WiFi-connected dryers

Common Causes

A clogged or partially blocked lint filter restricting airflow
A faulty lint filter sensor that is not reading correctly
Fabric softener residue on the lint filter reducing airflow
A loose wire connector at the lint filter sensor
A software issue in the control board triggering a false positive

How to Fix It

Remove the lint filter from the dryer. Clean all lint off it thoroughly. Hold it up to light — if you cannot see light through the mesh, the filter is clogged with lint residue and needs washing.

Always clean the lint filter before every single load. A full cycle with a clogged filter restricts airflow severely.
Wash the lint filter with warm water and a soft brush. Fabric softener sheets and liquid softener leave a waxy residue on the mesh that you cannot see but that significantly reduces airflow. Rinse and allow to dry completely before replacing.

Run your finger along the mesh — if it feels sticky or waxy, wash it. Do this monthly even if it looks clean.
After cleaning the filter, reset the dryer by unplugging it for 5 minutes and plugging it back in. Run a test cycle and see if E13 returns.

A clogged filter is the most common cause — this step resolves E13 in most cases.
Locate the lint filter sensor in the filter housing area. It is typically a small optical or contact sensor near where the filter slides in. Check its wiring connector for looseness or corrosion and reseat it.

Lint and debris can also physically block an optical sensor — clean the sensor area with a dry cloth.
If the filter is clean and the sensor connector is secure but E13 persists, test the sensor with a multimeter or have a technician test it. A failed sensor needs to be replaced with the correct OEM part for your model.

A false E13 from a faulty sensor can occasionally be resolved by a firmware update on Wi-Fi connected LG dryers.

When to Call a Professional

If cleaning the lint filter and washing the screen do not clear E13, the lint filter sensor may be faulty. The sensor is typically inexpensive ($10-$20) but its location varies by model. A technician can test the sensor and replace it in one visit for $80-$150.

Frequently Asked Questions

How often should I clean my LG dryer lint filter?

After every single load — no exceptions. A lint filter that is only half clogged reduces airflow enough to make the dryer less efficient and increases drying time. A fully clogged filter is a fire hazard. Also clean the filter housing and duct once a month with a vacuum to catch any lint that makes it past the filter.

Why does my lint filter look clean but still show E13?

Fabric softener sheets leave an invisible waxy film on the lint mesh. This film blocks airflow even though the filter looks perfectly clean to the eye. Run water over the filter — if it beads up and does not pass through, the mesh is coated. Wash the filter with warm soapy water and a soft brush to remove the residue.

How much does it cost to fix E13?

Cleaning the filter is free. A replacement lint filter sensor costs $10-$20. A technician service call for this repair runs $80-$150. In most cases, E13 is resolved by a thorough filter cleaning at no cost.