I have the aqua rite system and recently had to get a new salt cell. I bought one of the aftermarket ones. I'm having a strange problem since replacing it. My aqua rite is showing a salt reading between 4800 and 5500, and to start with I was getting the solid red high salt light which is normal. I have checked my salt level and it is actually around 2900. I have made sure the box is correctly set to T-15 for the cell size. The weird thing is that starting about a week ago, it is still showing me a salt reading of 4800, but the green generating light is one. Do you think I simply received a dud aftermarket unit? Any things I can trouble shoot before attempting to return it?