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Old 09-15-2009, 07:26 PM   #16
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GFCI breaker trips randomly


Can you check the wire path all the way to the jacuzzi?
Any chance a screw went into the wire somewhere during renovations?

If you disconnect everything at the splice you made & it trips then there is a problem with the old wiring

Putting a normal breaker in should never be an option unless ONLY to test
People who take out GFCI's really aren't thinking properly
Especially with a tub

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Old 09-15-2009, 07:31 PM   #17
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GFCI breaker trips randomly


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Originally Posted by Scuba_Dave View Post
Can you check the wire path all the way to the jacuzzi?
Any chance a screw went into the wire somewhere during renovations?

If you disconnect everything at the splice you made & it trips then there is a problem with the old wiring

Putting a normal breaker in should never be an option unless ONLY to test
People who take out GFCI's really aren't thinking properly
Especially with a tub
I think that's my next step...although if a screw went through the wire I would think it would trip right away?
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Old 09-15-2009, 07:32 PM   #18
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GFCI breaker trips randomly


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Originally Posted by Yoyizit View Post

If you can post a link to your particular panel GFCI there might be things that haven't yet been tried.
A link to it? What do u mean? A picture of the panel? Its a SquareD Q series panel
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Old 09-15-2009, 07:40 PM   #19
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GFCI breaker trips randomly


Vibration could be an issue
Loose wire or screw barely touching until vibration from someone walking makes it touch
Only other thing I can think of


Last person had installed a ceiling fan brace thru a wire during a remodel that caused the breaker to kick
But he didn't notice the breaker off until days later so never connected the 2 events
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Old 09-15-2009, 07:45 PM   #20
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GFCI breaker trips randomly


Just walked the wire, it goes straight into the panel. The only J box is the one I added. Too tired to mess with it now, will have to wait until this weekend I think. I'll post what I find.
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Old 09-15-2009, 07:53 PM   #21
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GFCI breaker trips randomly


Assuming the breaker feeds a Romex cable with hot, neutral and ground,
if you disconnect the ground wire from that cable at the panel busbar and the breaker then doesn't trip,
the leakage current is not going into the cable ground conductor
so it must be finding some other path to ground.
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Old 09-15-2009, 09:07 PM   #22
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GFCI breaker trips randomly


check that your ground wire (bare) is not touching the neutral wire (white) in both the metal junction box and in the recpt. box. They might be really close to each other and vibration could make them touch thus tripping the gfci
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Old 09-15-2009, 09:38 PM   #23
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GFCI breaker trips randomly


Quote:
Originally Posted by Yoyizit View Post
Or put a 7-1/2w incand. bulb in series with your jacuzzi motor ground lead. More than 1v with the motor powered is a ground fault.
I vote with you! It is DEFINITELY a ground fault condition and the breaker is performing as intended. There could be moisture around the motor or timer wiring!(No matter what) Don't Drink and Drive, Ever!!!
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Old 09-16-2009, 06:26 AM   #24
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GFCI breaker trips randomly


I see nothing wrong with the J box or the outlet. Does anyone? As you can see, a tester is plugged in and is powered, obviously not tripping the GFI








And a link to high res picture of the inside of the panel.



Last edited by BimmerRacer; 09-16-2009 at 06:30 AM.
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Old 09-16-2009, 08:20 AM   #25
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GFCI breaker trips randomly


Check the clamps at each metal box. If they are too tight, you may be getting intermittent contact between ground and neutral causing the GFCI to trip. Loosen and inspect the cable cover and wires for damage.
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Old 09-16-2009, 10:24 AM   #26
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GFCI breaker trips randomly


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Originally Posted by HouseHelper View Post
Check the clamps at each metal box. If they are too tight, you may be getting intermittent contact between ground and neutral causing the GFCI to trip. Loosen and inspect the cable cover and wires for damage.
My primary concern (in all installations) is about the HOT and NEUTRAL or HOT to GROUND making contact when overtightening the clamps. Then, of course you would have the breaker trip immediately. If that's not happening, it's safe to assume that you didn't over tighten. Tightening just right is something you've got to have a feel for. It comes over time! (No matter what)Don't Drink and Drive, Ever!!!
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Old 09-16-2009, 10:53 AM   #27
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GFCI breaker trips randomly


The first picture appears to have a drop of water on the neutral.
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Old 09-16-2009, 11:10 AM   #28
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GFCI breaker trips randomly


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The first picture appears to have a drop of water on the neutral.
I don't know exactly what you are looking at but there has not been any running water in that portion of the house for quite some time.
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Old 09-16-2009, 01:52 PM   #29
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GFCI breaker trips randomly


"ELIMINATE ALL OTHER FACTORS OR POSSIBILITIES AND THE ONE WHICH REMAINS MUST BE THE TRUTH, HOWEVER UNLIKELY."
-S. Holmes


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Originally Posted by BimmerRacer View Post
a tester is plugged in and is powered, obviously not tripping the GFI
If the tester pulls more than 5 mA between hot and ground it should trip the CB.

Last edited by Yoyizit; 09-16-2009 at 01:56 PM.
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Old 09-16-2009, 03:24 PM   #30
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GFCI breaker trips randomly


1. Check the clamps (see post #25)
2. If #1 doesn't reveal a problem, disconnect the wires at the new junction box, cap all the ends, turn breaker on to see if it still randomly trips. This will help isolate the problem to either the new wiring or the old wiring.

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