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Cal Spa Heat Switch Tripping


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I have a circa 1990 Cal Spa. Occasionally the heat cut out switch will trip. The water does not appear to be too hot and I've hosed off the filter. Looking at the diagraph there appears to be two seperate parts involved here. There is the actual electric cut out switch and there is a flow meter that goes inline after the heater. If I have to replace one of these parts which is more likely to be the cause, the cut out itself or the flow switch that feeds it? Is there a way I can diagnose it?

I've found that getting Cal Spa parts can be very hard. Cal Spa themselves is not interested in helping and their dealers support you for the "life of the spa" which Cal Spa defines as 8 years.


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