r33pwrd Posted October 4, 2013 Report Share Posted October 4, 2013 So long story short this tub has been an ongoing issue for years with a FLO error code. We have had a technician come out about a year and a half ago and paid a lot to have the flo switch replaced and it did not fix the problem. Here is what I have done: -Replaced heater element (it was bad and not related to the FLO error) -Replace filters (also ran without filters) -Replaced both temp sensors as I was getting very high reading (this fixed that problem) -Removed cleaned and reinstalled circulation pump and flow switch. -forced water throughout all the plumbing with a hose So here I am now and the tub works great during warm up but once the spa is asked to maintain a temp it will get the error code FLO. So new water it will run for almost 20 hours while warming up but once I reset the breaker (assuming the water is already at 104) the flo error returns almost instantly. Also when I flip the breaker I have to turn the jets on or it will get the error instantly. I am not against paying a technician but I simply cannot afford (nor justify) spending thousands of dollars on a 15 year old tub. it is a 199 Marqui Euphoria with the Balboa MTS97 heating system. thank you for any help or advise you can lend Quote Link to comment Share on other sites More sharing options...
r33pwrd Posted October 7, 2013 Author Report Share Posted October 7, 2013 no ideas?? Quote Link to comment Share on other sites More sharing options...
r33pwrd Posted October 23, 2013 Author Report Share Posted October 23, 2013 So I replaced the flow sensor (the style with the little arm that activates a micro switch) and it still does the same FLO error once the spa is up to running temperature. Someone on here must know these better than I do?? Thanks Quote Link to comment Share on other sites More sharing options...
Roger Posted October 23, 2013 Report Share Posted October 23, 2013 The wires from that flow sensor you replaced. How do they look and where they connect to the board? Quote Link to comment Share on other sites More sharing options...
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