RRepairGraph
LG · Dryer · D90

Installation checks

The dryer detected an exhaust restriction of about 90 percent.

Diagnostic nodeD90INSTALLATION
!
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

Installation checks for error D90

Installation checks can help narrow the context of LG D90, but this page does not claim that the named system is the failed component. Begin with the manufacturer meaning — The dryer detected an exhaust restriction of about 90 percent. — then complete only accessible checks: Stop and unplug the dryer.; Clean the lint filter and inspect only accessible duct sections.; Use a professional vent-cleaning service for the home exhaust system..

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