Patrick G Posted January 4, 2022 Report Share Posted January 4, 2022 My 2001 Hot Springs Sovereign model I’s ready light will sometimes start flashing, which disables the heater I believe. My tub has a leak so I have to add water twice a week. I do add the water through the grey stand pipe in the filter compartment. Once filled I close lid and wait for ready light to light solid green. Sometimes it does and other times it starts flashing and I have to power cycle it . I have replaced the temperature sensor which made no difference. I have clean filters. My tub has the IQ2020 panel. Any suggestions? Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted January 6, 2022 Report Share Posted January 6, 2022 Remove filters. Do not top off throught the standpipe, fill through standpipe. If replacing one thermistor, replace the other one too. Post pics of circuit board, wiring diagram, and equipment area. Quote Link to comment Share on other sites More sharing options...
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