F05Warning

LG Dryer F05 Error Code

The dryer senses excessive exhaust restriction, likely due to a clogged vent or lint buildup.

Common causes

  • Lint filter not cleaned
  • Vent hose kinked or crushed
  • Long or blocked exterior vent

How to fix it

  1. Clean the lint filter thoroughly.
  2. Inspect the vent hose for kinks, crushing, or lint accumulation; straighten or replace as needed.
  3. Disconnect the vent from the dryer and run a cycle; if error clears, the vent is blocked and needs cleaning.
⚠ When to call a pro: Call a technician if you cannot access the vent runs or the error persists after cleaning.

Part links are affiliate links — as an Amazon Associate we may earn a small commission at no extra cost to you.

Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.