Couldn’t find the way to create my own post so replying to this one as it has similar problem.
I need help with my Jandy LXi Pool Heater troubleshooting. I have it for 3 years and it worked fine until in the end of last summer it suddenly stopped lighting up. No power whatsoever. I followed directions in the manual and quickly found that there is no power passed Power Circuit Board. There were burn marks on the board, so it was clearly burned. I measured the voltage incoming to the board it showed me about 260V that is within the range (204-264V). I bought a new board and installed it just now. As soon as I tuned on the power the new board burned down.
Can someone advise on what to do next? There is probably a shortage somewhere, but how would I find it? The troubleshooting instructions in the manual are for finding power loss, but do not help finding shortage.
Thanks for help.