We have a Jacuzzi 310 hot tub we bought new in 2002. Last week I noticed it was showing a flo issue. I unscrewed the filter that went to the heater and immediately stop the warning. It seemed to be working fine but I was questioning whether the heater was working. The I heard 2 bangs and it went completely dead. I reset the GFI breaker and everything worked but no heat. I tore it apart yesterday and found on wire going to the heater was completely fried, burned in half. Doesn’t seem as though any other issues but I’m questioning whether it’s just the heater element or both heater and flow switch. Any ideas would be greatly appreciated
