d80
LG · DLEX3900W 7.4 cu. ft. Smart Electric Dryer with TurboSteam
Flow Sense detects ~80% blockage in exhaust vent. FIRE HAZARD. Clean entire vent system — duct behind dryer, rigid duct through wall, exterior vent hood. Use dryer vent brush kit. Replace foil accordion duct with rigid metal.
Error d80 on the LG DLEX3900W 7.4 cu. ft. Smart Electric Dryer with TurboSteam means: Exhaust Duct 80% Blocked. The top-ranked community fix is “Replace Foil Accordion Duct with Rigid Metal Duct and Deep Clean Vent” (hard difficulty, ~90 min, DIY cost: $30-$50). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · dryer
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many dryer repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $150-$250.
The LG DLEX3900W 7.4 cu. ft. Smart Electric Dryer with TurboSteam has 8 other known error codes:
Error code d80 also appears on 1 other LG model:
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