I attempted to wire my used (new to me) spa. Bought a 50amp GFI breaker and hooked it just as the local store instructed me to. I just tried to turn the circuit breaker on and it did not work, just popped back to the off position. I am unsure were to go to but an electrician and hope someone here can help. I have run 4 wires, two from the breaker to terminals 1 & 2 in the control box, the third and forth go from the ground strap in the circuit breaker box to terminal 3 in the control box. I hope this makes sense to someone that can help me get power going to my spa.