I have a friend that has a cal hot tub, that has for the last 4 years
randomly tripped the 50amp gfci breaker. the breaker,2 heating
elements,heater relay have been changed, and I rewired it from the panel
with 6 copper wire.the hot tub man has no idea and neither do i. it trips
the breaker all the time...any ideas on what to do would be very much
appreciated.yes the gfci is wired correctly...thanks
Or moisture is getting into someplace that's causing the leakage? Wet dust
can do that pretty easily, actually. Don't forget inside the boxes,
switches, etc.. Maybe water's leaking down between the tub & wall?
Just a couple htoughs
Since it trips frequently, for testing purposes, I would try to
seperate off the internal loads one at a time and temporarily insert a
seperate GFCI in each load just for testing. On mine, I could easily
split off the pump, power/pack/controller, air blower, all of which are
120V loads and can be temporarily wired to a std GFCI. If you know
what you're doing and are comfortable working with elec, this isn't
hard to do. Then you can isolate which load is causing the fault.
While doing the testing of course, I wouldn't use the spa, nor would I
use it till I figured out what was wrong. I'd start with those, since
you've replaced the heater, it's unlikely that's the fault.
What brand of GFI is giving you the problem. My electrician told me that
one brand, the name escapes me now, was having nuisance trips in hot tub
applications. We just had a hot tub installed.
If you post the brand I'll confirm with the guy if that is the problem type.
Mine sometimes trips when water backs up the siphon tube from my ozone
generator. When this happens, I have to wait for the generator to dry
out or disconnect it before GFI can be reset.
Can you reset yours immediately after tripping? If not, then something
is probably drying out in time and allowing a reset. If you can, then
you ve got an intermittent imbalance or a defective GFI. Hope this
I'm pretty sure he said he replaced it already.
Doug Miller (alphageek at milmac dot com)
Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?
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