Appliance Diagnostic

LG Dryer d80 / d90 / d95 Error Code - Exhaust Duct Blockage Alert

d80, d90, or d95 indicates 80%, 90%, or 95% airflow restriction in the home exhaust vent system.

What Caused This Error?

The control system reports d80 when the monitored condition described by the error code is outside the expected operating range. In this case, the most likely trigger is lint accumulation inside wall duct. Other common contributors include crushed metal vent pipe behind unit and exterior wall hood flap stuck closed.

Step-by-Step Diagnostic Check

  1. Disconnect exhaust duct pipe from rear of dryer and clean wall duct using vent cleaning brush.
  2. Verify exterior exhaust hood flap opens freely when dryer runs.
  3. Replace flexible foil ducts with rigid or semi-rigid aluminum ductwork.
  4. Clean dryer internal lint trap housing thoroughly.
Most Likely Replacement Part

Dryer Lint Vent Cleaning Kit & Hose

OEM Part #: MODEL-SPECIFIC

Buy Replacement Part →