Coway · Water purifier
AP1
Check Wi-Fi connection setup
One of AP1 through AP4 may appear when the router connection, Wi-Fi credentials, or network setup prevents connection.
Follow the official manual for your model to check the Wi-Fi environment, and contact Coway support if the code remains.
Possible meaning
One of AP1 through AP4 may appear when the router connection, Wi-Fi credentials, or network setup prevents connection.
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.
Models covered: CHP-7220N · CP-7220N
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