image paradise hydrothearpy spa control panel

does anyone know what the code "SnS" means on the image paradise hydrothearpy spa control panel, it is flashing between this code and the current water temp of the hot tub.

[Mary]

This usually means that your sensors are out of balance. Since it is flashing between this error code and temperature it may be a temporary condition. If it does not go away I would start with the temperature sensor as the problem.