Nfw

Hi, I have a j345 from 2004 as well. And I had a similar problem with the heater shorting out and causing the breakers to flip. It started with a Flo 1 error. There’s a scorch mark on the board where the heater connects. How did you sort out your issue? I contacted a local hot tub tech to investigate. They quoted me $500 Canadian for the new heater and $1800 to replace the board. Plus labour! Help! thanks, nicholas