I just bought a used r574 jacuzzi brand spa. I filled it and it was heating up, it started at 65 and was up to 88 before work today, i had the temperature set to 100 degrees. When I came home the code "Sn" came up, and the spa would not work.

I called around and it is weeks before someone can come fix it. I looked in the instruction manual and it says it may be a sensor. It looks like there is a overheat/freeze sensor and a temperature sensor. Do I need to replace these? Has anyone had this problem? What is the cost, and best suggestion.

Thanks is advance.

also, if it is a part, does anyone know the part numbers of these sensors....Thanks again.

Here you go.....

http://spapartsnet.com/p_Spa-Parts-Elec ... 6_1_1.html