My first post. Like many here I have the aqua rite system for about 7 years. I am on my second cell which is less than 2 years old. I currently have four boards with two just given to me by a local pool store. Today, I swapped out three boards. When I cut the power on they show no flow for 30 seconds and then all lights go out. On two of the boards the salt level is displayed albeit it two different levels. Not concerned about that but on these two boards and maybe the other board I am not getting any voltage or amps when you run through the diagnostics. The black varsitor looks fine on these boards. Does anyone know why I don't have voltage? Bad cell, phone line or white cord connector, bad display?