The APP allows ACDUALPLUS charging stations to interface with the smartphone and allows the technician to follow the A/C system service procedures also remotely, directly from the smartphone display. A specific notification system will alert the technician when the service is completed or when the ACDUALPLUS charging station detects any failures in the A/C system. Furthermore, thanks to its intuitive user interface, the performed maintenance services can easily be checked and managed even when the station is switched off.