@scott11106 i have to send in two fmm modules in, for different reasons. Really annoying actually. I make ticket and of course they see nothing wrong.
I've even had a fmm module send pmup into error. Shuts off ato. And out of the blue, back on line. But, fusion says you have new tiles, as though your setting up for first time. So both opticals for ato. And opticals for my automatic rodi arnt there. At one point, my rodi tripped on cause water level was low. In the night fmm trips out. And of course, now there was nothing to shut off solinoid vavle, because optical was in that fmm. So annoying, luckily I caught it and turned off manually before it overflowed reservoir.