Quick diagnosis
What this code is telling you
Most likely trigger
Lint accumulation inside wall duct
Recommended replacement
Dryer Lint Vent Cleaning Kit & Hose
Diagnostic path
4 ordered checks
Part fit
Exact model number required
Safety first
Before opening the appliance
Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
Read the full safety disclaimerRoot cause
Why the control reported this error
The dryer reports this fault after its control sees an abnormal drying, airflow, temperature, or component signal. The first condition to rule out is lint accumulation inside wall duct; also inspect for crushed metal vent pipe behind unit and exterior wall hood flap stuck closed before condemning dryer Lint Vent Cleaning Kit & Hose.
Symptoms
What you may notice
- ✓Dryer shuts down early
- ✓Clothes hot to touch but wet
- ✓Extremely long drying cycles
Possible causes
Check the most likely causes first
- 1
Lint accumulation inside wall duct
Start here when it matches your symptoms.
- 2
Crushed metal vent pipe behind unit
- 3
Exterior wall hood flap stuck closed
Diagnostic sequence
Work through these checks in order
Stop when you find the fault. Do not perform a step that requires skills or live testing you are not qualified to do.
- 1
Check 1
Disconnect exhaust duct pipe from rear of dryer and clean wall duct using vent cleaning brush.
- 2
Check 2
Verify exterior exhaust hood flap opens freely when dryer runs.
- 3
Check 3
Replace flexible foil ducts with rigid or semi-rigid aluminum ductwork.
- 4
Check 4
Clean dryer internal lint trap housing thoroughly.
Replacement part reference
Dryer Lint Vent Cleaning Kit & Hose
Exact OEM part number
Model number required
Fitment note
The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
Verify the appliance model before ordering.
Manufacturers can use different parts under the same error code across model families and production revisions.
Where do I find my model number? →FixCodeDB may earn a commission from qualifying purchases made through affiliate links.
Common questions
Quick answers for this fault
What should I check first for d80?
Start with lint accumulation inside wall duct. If that checks out, continue through the diagnostic sequence above rather than replacing a part based on the code alone.
Does d80 always mean Dryer Lint Vent Cleaning Kit & Hose is bad?
No. An error code identifies the condition the control detected, not a guaranteed failed part. Confirm the likely causes and wiring first. The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
When should I stop troubleshooting d80 myself?
Stop if the next step requires live electrical testing, sealed-system work, gas or combustion service, or any procedure outside your training. Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
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Related LG guides
d90 means the dryer has detected an exhaust restriction of about 90 percent through its Flow Sense monitoring.
d95 means the dryer has detected an extremely severe exhaust restriction of about 95 percent through Flow Sense monitoring.
AE or E1 means water has reached the dishwasher base area and activated the leak/float sensing system.
LG identifies bE as a bubble error, often caused by using hand dishwashing liquid or another detergent that creates excessive suds.
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