Coway
Water purifier
Select the code shown on your appliance to review its meaning and possible cause.
Check Wi-Fi connection setup
→AP5One of AP1 through AP4 may appear when the router connection, Wi-Fi credentials, or network setup prevents connection.
AP2 · AP3 · AP4Temporary network connection issue
→This code may appear in connection with a temporary network or server connection issue.
We currently provide a verified sample and will add more codes after checking official sources.