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Jandy Lxi Pool Heater - No Power - Power Circuit Board Burned Down


Garik2

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I need help with my Jandy LXi Pool Heater troubleshooting. I have it for 3 years and it worked fined 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 only.

Thanks for your help.

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