CalSpaer Posted April 7, 2019 Report Share Posted April 7, 2019 My circulation pump works intermittently and most of the time I need to turn on and off high (jets) before the circulation pump will run. The heater also seems to need the high pump to be going before the heater starts working. I have a dually pump. Could this be a pressure sensor issue? Quote Link to comment Share on other sites More sharing options...
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