Just finished my fourth summer with my pool. It was setup with the IC-40 SWCG run by an Easytouch 8 control panel. A few weeks ago, despite the generator indicating it was running normally, my chlorine level started dropping. A few days later, no lights on at the SWCG and the status on the control panel showed an error.
There was no indication of a break trip, and I did have a issue last year where the unit seemed to become frozen and I had to disconnect and reconnect the SWCG to "reboot" it. I tried that again. Initially, the lights came on and it appeared that it was back to normal. Yet, after a few minutes, all lights out again.
One more try at resetting and, when I powered the panel back up, smoke came billowing out of the SWCG and a bad burnt electric smell was obvious. It's pretty clear at this point that the unit is dead. I'm going to just run with pucks through the fall/winter/spring since my usage of the pool is going to decline.
What I'm trying to figure out is what happened? I've read a number of threads and saw the video about replacing the fuse (though, my Easytouch panel doens't have a fuse spot, it has a breaker for the intellichor on the upper front of the panel. The breaker doesn't appear to have ever tripped). So, I'm at a bit of a loss. I'll probably put in a replacement next summer, but I want to make sure there isn't something else going on before I risk another $600 putting in a new unit.
I opened up the SWCG for the first time in a couple of years to inpsect it. After being pretty diligent about acid washing the first year, I found there was essentially no scale building inside. In a discussion thread here from back then, I took it that, as long as I'm keeping my PH in range, I shouldn't have to worry about buildup in the unit or have to worry about cleaning. When I opened it up this time, I did find some scale had built up between the outermost plates, but it still didn't look like what I've seen in videos of heavy scaling.