LG · Air purifier
E18
Code guidance
UV nano safety detection
The UV safety system may activate when a filter or cover is not installed correctly.
Attention needed
Do not disassemble the unit. Contact LG Support if the code returns.
Possible meaning
The UV safety system may activate when a filter or cover is not installed correctly.
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.
This service is not affiliated with or officially operated by the manufacturers shown. Manufacturer names and trademarks are used only to identify products. The information is summarized from official sources, but its meaning may vary by product model and release date.
Official manufacturer sourceVerify with official guidance ↗Official source checked: 2026-08-21