I went to get in my hot tub and the screen was showing OH. Shortly after the tub turned off and now it won’t turn back on. I’ve tried calling local hot tub business with no success. The water has since cooled down. The spa lights work. But the heater and the jets no longer turn on. I read something about a reset button. I’ve not been able to locate such button. I’m not sure what to do now? Any advice would be appreciated! The brand of the hot tub is jacuzzi whirlpool