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LG·dryermedium severity
LG Error Code d80
80% exhaust restriction
Common Causes
- 1Lint buildup in vent
- 2Crushed duct
Clogged dryer vents are the leading cause of residential dryer fires. Over 2,900 home fires per year are caused by dryer vent blockages. Clean the vent system at least annually.
Step-by-Step Troubleshooting
- 1
Disconnect the dryer exhaust duct from the back of the dryer and inspect for lint buildup — even a partial blockage triggers the flow sensor
- 2
Use a dryer vent brush kit (long flexible rod with brush head) to clean the entire duct run from the dryer to the exterior vent flap
- 3
Check the exterior vent flap for bird nests, lint accumulation, or a stuck damper that restricts airflow
- 4
Replace any crushed, kinked, or vinyl flex duct with rigid or semi-rigid aluminum duct — vinyl duct traps lint and is a fire code violation in California
- 5
After cleaning, run the dryer on high heat for 10-15 minutes and verify hot air is flowing strongly at the exterior vent
Pro Diagnostic Tip
LG dryers with FlowSense use a differential pressure sensor in the exhaust path. The d80/d90/d95 codes correspond to restriction percentages measured by this sensor. Professional vent cleaning costs $100-150 in Sacramento but prevents the $3,000+ dryer fire that is the real risk.
You Might Also Notice
- •Clothes taking longer to dry
- •Dryer running hot to the touch
- •Excessive lint around dryer area
- •Humidity in laundry room during drying
Parts, Cost & Difficulty
Repair Difficulty
Easy — DIY FriendlyEstimated Repair Cost
$0–$150
Parts + labor. Free diagnosis with repair.
Do You Have the Right Tools?
Gas leak detector ($130), thermal fuse tester ($95), belt tension gauge, and vent inspection camera ($180). Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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What This Repair Involves
Here's what a professional technician does to resolve this issue:
Clean dryer vent and exhaust duct
This repair requires gas leak detectors, thermal fuse testers, and high-voltage multimeters. Most homeowners find it safer and more cost-effective to have a licensed technician handle it.
Safety First — Know the Risks
Gas dryers carry carbon monoxide and explosion risk. Even electric dryers involve 240V circuits that can deliver a fatal shock. Our techs are licensed and insured — let them handle the risk.
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Ready to Get This Fixed?
Don't let error code d80 disrupt your day. A professional diagnosis takes about 30 minutes — and it's free when you proceed with the repair.
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Frequently Asked Questions
What does LG error code d80 mean?
LG error code d80 indicates: 80% exhaust restriction. This is a medium-severity issue affecting your dryer.
How do I fix LG error code d80?
Disconnect the dryer exhaust duct from the back of the dryer and inspect for lint buildup — even a partial blockage triggers the flow sensor Then, Use a dryer vent brush kit (long flexible rod with brush head) to clean the entire duct run from the dryer to the exterior vent flap Then, Check the exterior vent flap for bird nests, lint accumulation, or a stuck damper that restricts airflow There are 2 more steps — see the full troubleshooting guide above. If these steps don't resolve the error, contact a professional.
How do I know if my dryer has error d80?
Besides the error code on the display, common signs include: Clothes taking longer to dry; Dryer running hot to the touch; Excessive lint around dryer area. If you notice any of these symptoms, check your dryer's display panel for error code d80.
How much does it cost to fix LG d80?
Repair costs for LG d80 typically range from $0 to $150 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.