Opening the pool last month the salt system never registered correctly. I have cleaned the cell really well. It is only 5 seasons old. We keep it inside when the pool is closed through the winter. I don't see too much online about this system. The read out is not correct. It has plenty of salt and it is reading 0 now. It has read 2300, 2500, 2900. I'm not sure if there is something going on with the motherboard. The lights that say check salt and check cell are illuminated. They were blinking and now they are solid.

I was thinking about replacing the flow switch. most of this stuff is guess and check. That would be the least expensive replacement part.

Any thoughts?