I just installed a new AquaRite Goldline with a T Cell 15 SWG. I’ve noticed that the panel will say that it is generating, but when I check the instant salt reading, it will say -0 as if it’s not generating. There are no error lights on the panel either. Is this normal? Does the cell turn it self on and off to hit a certain percentage? I have the cell turned to 50%. I can also flip the cell from on to off and it will then give me instant readings again.