LG Dryer Error Code d80: How to Fix It

The Logic Verdict

Your house vent is clogged. The dryer is fine; the duct in your wall is 80% blocked with lint. You need a vent cleaning kit or a pro.

What It Means

The d80 code indicates that the dryer’s exhaust airflow is restricted by 80%. The “Flow Sense” system detects back pressure in the line.

Common Causes

1. Lint Buildup in Wall Duct: Years of drying clothes without cleaning the duct.
2. Crushed Transition Hose: The foil hose behind the dryer is smashed flat.
3. Bird’s Nest: A bird has built a nest in your outside vent hood.
4. Long Vent Run: The duct is too long or has too many elbows.

Step-by-Step Fix

1. Check the Hose: Pull the dryer out and ensure the flexible hose isn’t crushed.
2. Clean the Outside Hood: Go outside and make sure the flap opens freely and isn’t blocked by lint or nests.
3. Clean the Wall Duct:
   • Disconnect the dryer.
   • Use a Dryer Vent Cleaning Kit (brush on a drill) to scrub the inside of the wall pipe.
   • Vacuum up the debris.
4. Reset: Unplug the dryer for 2 minutes to reset the sensor.

Parts You Might Need

• Dryer Vent Cleaning Kit (Link)