kennethroy Posted November 12, 2012 Report Share Posted November 12, 2012 I have a Jandy zs heater and cannot get it above 80f in low flow and 90f in high flow even though the temp is set at 104f any ideas Quote Link to comment Share on other sites More sharing options...
Targon Posted May 11, 2013 Report Share Posted May 11, 2013 It this manufacturer swim spas fault or created after bought it? How many years old? Have you tried any local hot tub makers advice? You may need to replace entire assembly which is responsible for water temperature. Quote Link to comment Share on other sites More sharing options...
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