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I have all of the relays I need to repair my 6600-730 circuit board for my sundance jacuzzi EXCEPT for the blue ones in the image below. If you know what to replace these relays with or have a 6600-730 circuit board, then for the love of bullion cubes post a hi res picture of the specs on the...

I have no idea why I hadn't considered just replacing the relays. That's definitely what I am going to do. Any chance you know the specs for the three smallest electromechanical relays on the board? (K9 10 and 11) The blue covers on them are unmarked so I have no idea what the replacement would...

Thanks for the info. I decided to open some of the relay covers today and looks like 2 stuck relays are the source of the issues. The replacement board for this model is 6600-730 and is readily available for a little less than 500 from the places I have found. Any places you know of that...

Hi pool&spatech Thanks for the input. I have read the documentation extensively and understand what you are referencing. But as I stated initially, the flow switch works properly when installed in the correct position. That is to say that the flow switch is open when the power is off and closes...

This is a little more complicated than the title suggests, but I went for most meaningful rather than exhaustive title or vague title. I got a 2003 Sundance Optima 850 for free on craigslist. It was in great shape. I replaced the headrests and cleaned the filter, and got it started up. The...