Neptune auto top off failing

[DKoKoMan]

My Neptune ATK acted up one time, similar to where it refused to top up my sump causing my return pump to blow bubbles. I took the sensors off, repositioned and unplugged. When I put it back on it seemed to be working fine. I’m a littler nervous with this ATK now, i purchased the Neptune ATK (known brand) to avoid any hassles.

I’m hoping I don’t fall victim next to these issues.