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early 1990's Hot Springs jetsetter heater question

Forums  >  Troubleshooting Your Hot Tub

early 1990's Hot Springs jetsetter heater question
I purchased a used jetsetter (1992 J model?) last year and it worked great up until last fall. I drained and cleaned the spa, refilled it and upon refill noticed that the spa was not heating the water. I phoned a friend who repairs them and he instructed me to try to remove the filters and call him back. The spa heated up and I was back in business. I reinstalled a new set of filters. Now it seems to be doing the same thing (not heating unless the filters are out). I was wondering if there's a flow control switch that's sensing restricted flow and shutting down the heater? I dont see one or anything that resembles one in the equipment compartment. I'm a newbie to this forum but I've owned a few spa's that I've repaired and this forum had a lot of good threads that helped.Any suggestions or comments would be greatly appreciated, thanks!wallyps. I've attached an image of the spa guts as a reference.
Posted: 2008-04-05 08:43:07   By: wallster
Re: early 1990's Hot Springs jetsetter heater question
I just found the owners manual (see below) and I think the low circulating pump (L.-heater circulation pump) also works as a flow switch. Could that be worn? (how do I test it?)wally
Posted: 2008-04-05 09:01:23   By: wallster
Re: early 1990's Hot Springs jetsetter heater question
[quote="Swine":4scvz22x]There is no flow switch on this tub.If it isn't heating, and the jets work normally, it's more likely the thermostat, heater relay, heater, or a burnt wire.If the circ pump failed, the heater would energize, and the heater high limit would trip in a couple minutes.[/quote:4scvz22x]Thanks, but why does it heat the water when the filters are removed but doesn't when the filters are installed? (the filters are new)wally
Posted: 2008-04-05 10:21:02   By: wallster
Re: early 1990's Hot Springs jetsetter heater question
Any chance you could divulge where you found the manual for this spa? I have one just like it and would like to get my hands on a manual for it. Thanks!
Posted: 2009-01-17 06:27:45   By: syrix