LG · Dryer
d90
Exhaust airflow about 90% restricted
The dryer detected that airflow through the exhaust path is restricted by about 90 percent.
Stop using the dryer and request professional inspection because overheating may occur.
Possible meaning
The dryer detected that airflow through the exhaust path is restricted by about 90 percent.
This information is not a professional diagnosis or repair instruction. The same code can mean different things by model, so follow the product manual and official manufacturer guidance first.
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Official manufacturer sourceVerify with official guidance ↗Official source checked: 2026-08-21