Terriharcourt Posted May 23, 2021 Report Share Posted May 23, 2021 You My j270 jacuzzi spa keeps clicking on and off.. not tripping breakers.. it can stay on a few days, hours, or minutes.. 557 comes up when it turns back on.. if left on the xformers(name on diagram) u1,u2 are burning hot to the touch.. I have cleaned checked everything.. cannot get a technician out to where I live Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 23, 2021 Report Share Posted May 23, 2021 Post photos of the circuit board and the schematic on the inside cover of the pack. Quote Link to comment Share on other sites More sharing options...
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