Goldline controls--check flow switch

[teachngolf]

On my goldline controls, it says "check flow switch" on the screen. I thought it was my salt cell, but I cleaned it and it looks like it did when I cleaned it last, which leads me to believe it hasn't been working (but I did float a chlorine tabs over the winter). Is there a "flow switch" to check? What else might it be? Thanks a million for ANY help.

[teachngolf]

I got it figured out--needed a new "flow switch." Thanks for all the help. Haha.