58thStSurfer Posted November 28, 2021 Report Share Posted November 28, 2021 Heater not working, no power. FLO code on display. I have replaced pump one, Circ pump, new filter, new heater (upgrade). I have power coming in, but not going to heater. Where or what do I do next? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted November 28, 2021 Report Share Posted November 28, 2021 Flow Switch would be where I'm looking next 1 Quote Link to comment Share on other sites More sharing options...
58thStSurfer Posted November 28, 2021 Author Report Share Posted November 28, 2021 @Canadaianspatech I replaced the flow switch, would that cause power not to go to heater? Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted November 29, 2021 Report Share Posted November 29, 2021 That is the source of the flow error. Is "flo" alternating with the temp or solid? 1 Quote Link to comment Share on other sites More sharing options...
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