A: This is not a defect; it is microbial growth on the wet evaporator coil. The manual recommends running "Fan" mode for 30 minutes after "Cool" mode to dry the unit. You can also buy Panasonic anti-mold filter tabs or use a coil cleaner spray.
Since Panasonic frequently updates their support portal, do rely on third-party pay-sites. Use these official sources: panasonic css12pkq manual
: If you are looking for technical specifications, wiring diagrams, or error codes, the Panasonic Pro Club hosts service manuals for the PKQ and PKE series which include detailed troubleshooting guides. Quick Setup Tips A: This is not a defect; it is