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Jacuzzi J-315 convertible spa (110V hookup) won't heat.

I have a 2003 Jacuzzi J-315 convertible spa, hooked up to 110v, that will not heat the water. I got the spa used and before I bought it, it sat for the better part of a year without having any water in it, and without the filters in place. The temp sensor switch was just replaced by a very expensive tech, who told me everything else was working, but that I was going to need a new circulation pump, but it's working for now. The first time I used it, the heater got the water up to 104 quickly, but then it has dropped off down in the 80s (approaching ambient temp in southwest FL). Question 1: Can I remove the heater (plug the water lines) and troubleshoot it on a bench? Question 2: If it has debris inside the heater, will that shut it down? Question 3: If that is the case, can I flush it out and have it work? Thanks!

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  • William D. Wiseman Feb 22, 2012

    I don't know how this wound up in Printers!!

  • William D. Wiseman Mar 22, 2012

    I replaced the heater and the tub heated up fine - for about two weeks. We turned the temp down from 102 last night to 97 for our grandkids to get in, and the heater wouldn't come on afterwards, New problem posted...



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Posted on Feb 26, 2009

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