LG Dryer error code
LG Dryer Error D80
Exhaust duct 80% clogged - significant airflow restriction; on gas dryers may also indicate lack of gas supply
Exhaust duct 80% clogged - significant airflow restriction; on gas dryers may also indicate lack of gas supply
Try these first
Start here before buying a part or taking the appliance apart.
- 1Check 1
Clean the lint filter screen.
- 2Check 2
Clean the entire exhaust path: disconnect the duct from the back of the dryer, clean the dryer's exhaust port, the flexible duct, the rigid ductwork in the walls, and the exterior vent cap.
- 3Check 3
For gas dryers, also check that the gas supply valve is fully open.
A quick explanation
What does D80 mean?
Exhaust duct 80% clogged - significant airflow restriction; on gas dryers may also indicate lack of gas supply
The answer you came for
How to fix LG dryer error D80
Start with the safest checks and work from simple to technical.
- 1
Step 1
1. Remove and clean the lint filter inside the dryer drum.
- 2
Step 2
2. Disconnect the dryer vent hose from the wall and vacuum out the exhaust duct.
- 3
Step 3
3. Inspect the external vent hood outside your home to ensure flappers open freely.
Read the additional checks from the current guide
How to Fix Dryer Error Disconnect the flexible vent hose from the back of the dryer.Clean the internal lint filter and the housing it slides into.Clean the flexible vent hose and the wall duct leading outside.Check the exterior vent hood on the outside of the house for crushed louvers or bird nests.Reconnect the vent and run a cycle to clear the code.
What may be causing it?
- Significant lint buildup in the exhaust vent, causing an 80% airflow restriction.
- A crushed flexible duct behind the dryer.
- No gas supply (on gas models).
These are possibilities to investigate, not proof that one part has failed.
Recommended part
Recommended part for this error code
No replacement part recommended for this code
The researched guidance for LG Dryer error D80 points to user-action and diagnostic steps above rather than a mapped replacement part. We will not invent a part or send you to an unrelated product.
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Repair or replace calculator
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Safety first
Disconnect power before opening panels or touching internal parts.
When to stop
- Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
- Do not perform live-voltage testing unless you are trained and equipped for it.
- Use the exact model manual or service information before replacing electronic controls.
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