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You have money? Don't let the wife find out 😆

A follow up we are good all back to 100% wife was incorrect on pressure thanks again guys u rock

The wiring is fine, the problem is the spa draws 53-55A, you are supplying a 60A circuit. You will have the possibility of overloading the 60A breaker IF you are drawing max current from both the 15A GFCI and the 60A GFCI. What I would do is run 1) 14GA THHN wire from the main panel as a 15A circuit, use the spa panel as a feed thru and then out to your 15A GFCI. You would need to run a neutral and a ground wire from the spa panel to the GFCI. That's my CYA legal advice. Ignore anything after this. As long as you are not going to have a heavy load on that outdoor GFCI, what you propose is not ideal but it will work. Just be aware that you do have the possibility to exceed the 60A breaker at the main and it will trip. To be clear, 15A circuit requires 14GA wire.

Looks good. If I was doing this work, I would mark on both ends the white wire that will be carrying the load. Electrical tape will work for a marker although red tape is better (simply because traditionally 240V lines are red and black, neutral is white and ground is either green or bare copper).

Canadian spa tech, I was referring to insulation in the open space under the tub. The frame itself has blue rigid insulation between 2 3/4 plywood. In the frame under the tub, there’s no batts in garbage bags. I had my friend and spa expert take a quick look and it was obvious. I have vapor barrier on both sides of the wall insulation (inside and out). So they vapor has no where to go. not sure why that didn’t occur to me before. It’s not like we put vapor barrier on the outside of our insulation in homes *face palm* I also added a vent to the side near the motors through the insulation and interior vapor barrier. I think it should be fine now I appreciate everyone’s response and I’ll update with progress.

Likely the Hi-Limit thermistor. If it is going into protection mode right away, you are not going to have the option of even turning the jet pump on.