LG Dryer D80 (D90/D95) Error
What it means
D80, D90, and D95 are Flow Sense codes on LG dryers that report how restricted the exhaust airflow is. The dryer has a sensor in the exhaust path: D80 means roughly 80% of the airflow is blocked, D90 means about 90%, and D95 means about 95% or more. As the number rises the dryer dries more slowly and, at D90/D95, it will cool down and stop to prevent overheating — these warnings exist largely to reduce the risk of a lint fire.
Common causes of the D80 (D90/D95) error
- Clogged lint filter
- Lint built up inside the exhaust hose or ductwork
- Crushed or kinked vent hose behind the dryer
- Obstructed or stuck exterior vent flap
- Vent run that is too long or has too many bends
How to fix the LG Dryer D80 (D90/D95) error
- 1Clean the lint filterPull out and clean the lint screen before every load. A clogged screen is the most common cause of D80.
- 2Clear the vent hose and ductFor safety, unplug the dryer (or shut off its breaker) and, for gas models, close the gas valve. Pull the dryer out, detach the vent hose, and remove lint from the hose and the wall duct.
- 3Straighten and check the runReplace a crushed or kinked hose, keep the duct as short and straight as possible, and use rigid or semi-rigid metal duct rather than flexible foil where you can.
- 4Check the outside ventConfirm the exterior vent flap opens freely and isn't blocked by lint, debris, or a bird/animal nest.
- 5Reconnect and testReattach everything, restore power, and run a cycle. A cleared vent should drop the code; remaining D90/D95 means more of the run is still blocked.
🧰 When to call a professional
If the lint filter, hose, duct, and outside vent are all clear but D80/D90/D95 keeps appearing, have a technician inspect the internal ductwork, blower, and the Flow Sense sensor. Repeated D95 with a clean vent should not be ignored because of the fire risk.
LG D80 (D90/D95) error — FAQ
What does D80 mean on an LG dryer?
D80 is a Flow Sense warning that the exhaust airflow is about 80% restricted. The dryer still runs but dries slowly until the vent is cleaned.
What is the difference between D80, D90, and D95?
They report worsening blockage: D80 is about 80% restricted, D90 about 90%, and D95 about 95% or more. At D90 and D95 the dryer cools down and stops for safety.
How do I get rid of the D80 code?
Clean the lint filter, then unplug the dryer and clear lint from the vent hose, ductwork, and outside vent flap. Straighten any kinks and run a test cycle.
Sources
This guide is independently written and not affiliated with LG. Always unplug appliances before servicing and follow your model's manual. Error codes and steps can vary by model — when in doubt, consult a qualified technician.