I realized two weeks ago that my Nero 5 was not on. I tried turning it on which didn't work. I also tried opening to the app to see if that would have any affect which didn't. The module where the button is gets warm when it's plugged, but it won't turn on. I assume it burnt out or something. Worth trying to get a new module and keeping the powerhead or should I replace the whole thing? Anyone ever tried fixing one?