Samsung · Air purifier
C138
Gas sensor issue
The gas sensor or the internal electronics connected to it may not be operating correctly.
Contact Samsung Support for internal sensor inspection.
Possible meaning
The gas sensor or the internal electronics connected to it may not be operating 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