Hot Tub GFCI

[jim dungar]

Yes breaker neutral landed on neutral buss with neutral from panel. Hot tub is straight 240v no neutral. Could that be causing an issue?

Not likely, load neutrals are not usually necessary.

 

[laketime]

Maybe somewhere in the house there are neutrals of different circuits tied together with a wire nut?

Take the neutral from the hot tub off at the panel and see if you have continuity from the disconnected neutral to the the neutral bar in the panel?

Worth a try although I do not see how we would have continuity as that neutral would just be tied to the neutral in the hot tub disconnect.

 

[LarryFine]

Hot tub is straight 240v no neutral. Could that be causing an issue?

No, and in fact eliminates one possible leakage-current pathway.

Next experiment is to disconnect the load wires at the GFCI breaker itself.

If it holds, your problem is between the breaker and the control panel.

 

[tortuga]

I'd check the feeder neutral make sure that has good connections, an elevated G-N voltage might mess with the GFCI electronics.

 

[letgomywago]

Any other electronic issues in the house like other gfi devices nuisance tripping? If a 1 inch push on breaker have you tried a different brand incase you've got a bad batch or have electronic noise causing it?

 

[Sea Nile]

Worth a try although I do not see how we would have continuity as that neutral would just be tied to the neutral in the hot tub disconnect.

When you ruled out everything that is likely, it's time to check the unlikely. Especially when it's quick and easy to test. It could be something like a nail or screw that Murphy Law drove into a wall.