Interesting... I was just re-reading the thread that Phil replied to:
Very long story short, we need to replace the "Pentair IntelliCenter I5P OCP Circuit Board" (part 523050). I found "Pentair IntelliTouch/EasyTouch to IntelliCenter Upgrade", but I'm not sure if it can be used in the same part or if there is different functionality because it's the upgrade...
www.troublefreepool.com
...and now that I have his dead board I can see that yes that rectifier is absolutely smoked... AND that the 24v port has a "160mA MAX" warning label on it. I'll solder a temporary rectifier in, and if I can get the board working I'll check how much current it's drawing. I'm wondering if Pentair undersized the part.
I will also add that looking at how the ethernet is laid out, I'm thinking that Turbo's board will have more problems than just the rectifier