Editorial & technical review
- Written by ApplianceWorth Editorial Team
- Technically reviewed by Victor — appliance technician
- Last reviewed 2026-07-01
- Applies to LG dryers
- Confidence medium
- Also displayed as D80, D85, D90
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
What this code means
These codes indicate severe exhaust restriction. The number represents the approximate restriction level detected by the dryer. A blocked vent can extend drying time, overheat the appliance and create a fire risk.
Most likely causes
- Lint buildup inside the home exhaust duct or outside hood
- A crushed, kinked or unsuitable flexible transition duct
- An exhaust run that is too long or contains too many elbows
- A stuck outside flap, screen or internal gasket/airflow problem
Safe checks for the owner
- Stop using the dryer until airflow is restored, especially with d90 or d95.
- Disconnect power and inspect the short transition duct behind the dryer for crushing or lint.
- Check the exterior vent hood for strong airflow while the dryer is briefly tested after obvious restrictions are cleared.
Estimated U.S. repair cost
$120–$350, depending on model, access, parts availability and local labor.