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#39919 - 07/06/04 05:32 PM Ho tub service call
derater Offline
Member

Registered: 03/30/02
Posts: 182
Got one coming Friday- owner had circuit run and h.depot 50a gfi disco installed by someone else.He called me today after tub installers had been there;When the unit was energized it quick tripped the bkr.(several attempts)One of the crew must have a little elec. insight; owner said the guy found "something" wrong in the main(?)panel, and changed "something' AND drove ground rod at disco.Net result was delayed trip.I had them trip on leaky heaters; anyone shed any light on potential problems. What are the odds it's a bad gfi-disco?

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#39920 - 07/06/04 06:19 PM Re: Ho tub service call
electricman2 Offline
Member

Registered: 11/09/03
Posts: 234
Loc: Thomasville, NC USA
Five will get you ten its a fault in the tub. Is the breaker tripping on overload or gound fault? I dont know what they thought driving a ground rod was going to do.
_________________________
John

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#39921 - 07/06/04 07:13 PM Re: Ho tub service call
Electricmanscott Offline
Member

Registered: 01/12/02
Posts: 1478
Loc: Holden, MA USA
I was expecting something else with the topic being "HO TUB"

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#39922 - 07/07/04 07:03 PM Re: Ho tub service call
derater Offline
Member

Registered: 03/30/02
Posts: 182
Electricman 2-short answer- I don't know-the man said before the installer tinkered with the circuit that it tripped immediately-after that it would hold for 20-30 min. before tripping-the tub is new-could be defective though-besides the heater, any thoughts on what else may be doing this?

Scott-yeah, I found the hard way one can't edit topic name.

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#39923 - 07/08/04 04:06 AM Re: Ho tub service call
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
derater

my first assessment would be N-G confusion/ bonding beyond the gfi protection

next would be to start disconnecting one item at a time, heaters can be two units, motors can be multiple

good luck

~S~

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#39924 - 07/08/04 11:56 AM Re: Ho tub service call
electricman2 Offline
Member

Registered: 11/09/03
Posts: 234
Loc: Thomasville, NC USA
Put a clamp-on ammeter on the supply conductor to determine if tripping is overload or not. If not what Sparky said may apply, bonding between neutral and EGC downstream of GFCI.
_________________________
John

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#39925 - 07/08/04 01:25 PM Re: Ho tub service call
earlydean Offline
Member

Registered: 12/22/03
Posts: 749
Loc: Griswold, CT, USA
I found a problem with GFCIs tripping is often water in the equipment. It goes away when the equipment dries out.
_________________________
Earl

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#39926 - 07/09/04 06:20 PM Re: Ho tub service call
derater Offline
Member

Registered: 03/30/02
Posts: 182
Thanks for the replies all;Elec. 2; good bet;
amped out at 18a +/- p/ leg; noodle at the line out of main a bit loose-but still tripped at 15 min. or so;then the HO starts playing with the controls, pushes the lights
button and the pump starts,(brand new unit)
so I tell him I think he has issues with the maker.Clearly something wrong in the controls; I'll post it if I hear what the problem was.

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