RRepairGraph
LG · Dryer · D90

Related error codes

The dryer detected an exhaust restriction of about 90 percent.

Diagnostic nodeD90RELATED-CODES
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Use this as a diagnostic branchConfirm the exact model manual before ordering parts or opening the appliance.

Coverage: LG dryers equipped with the Flow Sense duct-blockage system.

GUIDANCE

Related error codes for error D90

Compare this entry with nearby LG and dryer codes, but never substitute one code definition for another. The exact display and model family control the diagnosis.

Safe sequence

  1. 1Stop and unplug the dryer.
  2. 2Clean the lint filter and inspect only accessible duct sections.
  3. 3Use a professional vent-cleaning service for the home exhaust system.

Stop and get qualified help when

  • The dryer or vent is unusually hot
  • D90 returns after professional vent cleaning
Primary sourceLG USA — d90/d95 dryer errors ↗Verified 2026-07-17 · manufacturer