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W When I turned up the temp, it started a cycle and about 45 seconds later, it started warming. After I felt the warmer water coming out, I thought maybe it was just hung, so I started the jets. The temp/heat light stayed on when I turned on the first and second jet pump. When I turned on the third jet pump, the heating immediately shut off. The circulation pump was still running, but it stopped heating the water. I turned off the jets and changed the temp which started the cycle over. It started heating and produced the same result when I turned the third jet pump on.
If I flip the switch for the 3 pump and blower, would it still operate under the 48 amps?