A remote diagnosis system 100 comprises a spa bathing system 1000 and a remote operating platform 4000. The bathing system 1000 comprises a plurality of devices 3100 for actuating relatively to the spa bathing equipment, and a spa bathing control unit 2000 having a control unit 2100 for controlling actuations of the devices, used to generate at least one partial-region information according to at least one partial-region status generated by the bathing system, and to actively or passively transmit the partial-region information. The remote operating platform is connected to the bathing control unit to receive the partial-region information via a network unit 3000, and comprises a user operation interface 4040 to generate at least one diagnosis control that makes the control unit perform at least one automatic detection process on a single and/or multiple devices based on the selected diagnosis control. Also claimed is a method of operating a remote diagnosis system including verifying an identification code of a spa bathing equipment and establishing a networking connection between the platform and the bathing system corresponding to the verified equipment.
