psychospaowner Posted June 26, 2011 Report Share Posted June 26, 2011 I can get my Sundance 750 to heat to about 90 degrees. It wont get any warmer. This started right after a water change. All jets, lights, air works fine. Any ideas for troubleshooting? Quote Link to comment Share on other sites More sharing options...
THE SPA GUY Posted July 5, 2011 Report Share Posted July 5, 2011 psychospaowner, after you filled the spa it started, are there any error codes on the topside, possible air lock on the circ pump, if not it could be the temp sensor, How old is the filter,,,, Quote Link to comment Share on other sites More sharing options...
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