LG Dryer
LG Dryer FO Error Code
What it means
LG identifies FO / Insert Filter as a lint-filter installation problem.
Try this first
- Remove the lint filter.
- Reinsert it fully into the lint-filter housing.
- If FO continues, request service.
If the error keeps returning
Use the linked official LG Help Library article for the manufacturer procedure.
Official source
Troubleshooting information verified against manufacturer support documentation.
View manufacturer support page →