What this code usually means
LG states that d90 means the exhaust duct is approximately 90 percent blocked and needs immediate attention.
BrandLG
ApplianceDryer
ConfidenceManufacturer sourced
Safe checks, in order
- 1Stop and unplug the dryer.
- 2Clean the lint filter and inspect only accessible duct sections.
- 3Use a professional vent-cleaning service for the home exhaust system.
Common symptoms
- Very long drying times
- D90 appears on the control panel
- Dryer may stop to protect against overheating
Possible causes
- Heavy lint buildup in the home duct
- Crushed flexible duct
- Blocked exterior vent hood
Stop and get qualified help when
- The dryer or vent is unusually hot
- D90 returns after professional vent cleaning