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okay did more testing.. the spa is on now and working. Â Weird this is this however...on the wires that come OUT of the spa.... there are 2 blacks (power), 1 green (neutral), and then a bare copper wire (ground). Â Well I hook the 2 blacks and green up to the circuit breaker that is in the spa disconnect box. Â Then the bare copper wire I hook to the GROUND terminal in the spa disconnect box. Â When the bare cooper wire is hooked up, the circuit blows. Â When the bare copper wire is DISCONNECTED from the spa box, the spa turns on and everything works just fine.Problem is... now it seems the spa IS NOT grounded?? Â The spa is currently ONLY hooked up with 3 wires..... 2 black and 1 green into the spa disconnect panel. Â The bare copper wire from the spa is just sitting on the floor NOT hooked up to anything...why is this? Â is it dangerous to run the spa WITHOUT the copper wire hooked up?
When you say it is a 3-wire setup (and it also says this on the cover of the sentry control box inside the tub) does that mean you only need to hook up a total of 3 wires coming OUT of the hot tub into your GFCI spa disconnect box? Â I always thought that you needed to hook up 4 wires, 2 power, 1 neutral (green), and then a bare copper (ground) wire.But when I did this the tub kept throwing the breaker. Â If I DO NOT hook up the bare copper ground wire at all then the tub works fine. Â Instead I put the Green wire coming out of the hottub to the Ground bar located inside my spa disconnect panel.So that means I now ONLY have 3 wires coming out of my hottub connected.
I am not qualified to answer that question. Â That is why I suggested posting at the Doc's forum. Â They answer these type questions regularly. Â Be prepared, though, as you may get a remark such as...if you have to ask this question you should get a licensed electrician to install.