Error Code: d90 LG

LG Dryer Error d90: 90% Blockage

d90 means your exhaust vent is 90% clogged.

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The Logic Verdict

Fire Hazard. Stop drying and clean your house vents.

What It Means

The d90 code stands for Duct 90% Blocked.

Common Causes

  1. Lint buildup in the wall duct.
  2. Crushed hose behind dryer.
  3. Bird nest in outside vent.

Step-by-Step Fix

  1. Disconnect: Pull dryer out and disconnect hose.
  2. Clean: Use a vent brush to clean the pipe going into the wall.
  3. Check Outside: Ensure the flap opens freely.

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