AceFrehley03 Posted October 26, 2015 Report Share Posted October 26, 2015 Hi everyone. So we finally caved and bought a new to us Clearwater, circa 1997. I don't know the exact model, I can't find it anywhere and like a meathead, I've lost the paperwork. It has Balboa controls on it. Long story short I got it all wired and filled and fired it up, and everything seemed fine besides a pretty substantial leak next to the niche. Water temperature was 62.7*F (ambient 65.5*F) out of the hose. After a few hours had gone by, it had climbed to 67.2*F. Awesome. I did some reading on biofilm, grossed myself out so ran to the nearest store to grab some cleaner. Was gone about an hour and a half total. I came home to the spa controls displaying "Oh." Water temperature was 67.7*F. Pump was not running. I decided to cycle the power at the breaker and when I did that, I was immediately greeted with an "Sn" code. Pump does not operate at all, doesn't go through priming, just goes straight into "Sn." Have cycled a few times, this is all I get. What paperwork I've found shows that typically a machine will operate with an Sn code, and it should flash with another number. Is this correct? I pulled resistance readings and showed 61.6kohms on the temp lead, and 54.4kohms on the high-limit (which if I understand properly is the one that goes to the shell, near the footwell. I do not have dip switches to enter a test/diagnostic mode. This was with the water temp at 63.3*F. If it matters, part numbers are as follows: Control Module: Balboa DU-GRDELT-DCA 51597 Top side controls: Balboa/Clearwater, two numbers 51558 and 33394 Sensor Assy: Balboa 30337 Edit: More information - tub has not been used for at least a year, probably much longer. Tub was stored dry, clean and covered. Quote Link to comment Share on other sites More sharing options...
AceFrehley03 Posted October 27, 2015 Author Report Share Posted October 27, 2015 Additional information - I called Clearwater and was informed by the tech that it sounds like a board issue and not a sensor issue. To test this, I disconnected the sensor connector (these are shared under one modex-type connector, one pair goes to the heater and the other pair goes to the tub) and energized to see if there was a change. There was no difference.If it is the board, when these boards fail, what typically goes wrong? I'm pretty good at swapping electronic components. Quote Link to comment Share on other sites More sharing options...
AceFrehley03 Posted October 27, 2015 Author Report Share Posted October 27, 2015 Further information - update from Clearwater informs me that my current board, 51597 is defunct and has been superseded by 51598. I can't find anything online pertaining to either of these boards, not even on Balboa's own website. He mentioned that they are both proprietary to Clearwater Spas. It's a $360 fix to go through them. Any other ideas first? Quote Link to comment Share on other sites More sharing options...
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