RRepairGraph
LG · Dryer · D80

Symptoms checklist

The dryer detected an exhaust restriction of about 80 percent.

Diagnostic nodeD80SYMPTOMS
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Use this as a diagnostic branchConfirm the exact model manual before ordering parts or opening the appliance.

Coverage: LG dryers with Flow Sense; gas-model interpretation must be confirmed in the exact manual.

GUIDANCE

Symptoms checklist for error D80

Reported behavior connected to this code includes Long drying times; Flow Sense warning; Dryer may reduce heat or stop. Confirm the display code before matching symptoms to a repair path.

Safe sequence

  1. 1Stop the dryer and unplug it.
  2. 2Clean the lint filter and inspect the accessible rear duct for lint or crushing.
  3. 3Arrange professional vent cleaning if the home duct is restricted.

Stop and get qualified help when

  • The dryer smells hot or the duct is not safely accessible
  • D80 returns after the accessible vent path is clear
Primary sourceLG USA — dryer error code list ↗Verified 2026-07-17 · manufacturer