LG · Air conditioner
CH38
Low refrigerant detected
The air conditioner detected a low refrigerant condition and displayed this warning to protect the unit.
Request LG service because the refrigerant system requires professional inspection.
Possible meaning
The air conditioner detected a low refrigerant condition and displayed this warning to protect the unit.
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