Sorry I haven't responded sooner but I am getting used to the
forum. I was just called in to replace the 50amp GFCI breaker at
the sub supplying the tub. I think SierraSparky answered my question
about the neutral- there must be a transformer at the tub control unit.
There is no bus or requirement for a neutral for this particular older
tub so no need to pull one.
Thanks,
Scanman
I haven't installed many hot tubs, although this has me thinking of older ovens and dryers with only three-prong connections. Where the ground and neutral were tied together at the equipment. How is the breaker wired in with only a 3-wire connection? You would need two hots, neutral and ground for that breaker to operate correctly.
Once upon a time, I had troubleshot an older hot tub, where the two hots and neutral were utilized and the ground was tapped on all the metal parts of the hot tubs (pump, blower, etc.).
I don't know maybe I'm off, would need a line diagram of the equipment to see how it is supposed to be tied in. Need more coffee :grin:.