Blown GFC breakers

Should not trip breaker. Like wiring issue!
Sure you plugged into a 120 volt receptacle?

Thanks for your reply and I did use the RV plug on the generator. I manage to reset everything and not use the generator again. I did have trouble reinserting the wires back into the small outlet in the bathroom as part of my trouble shooting. If I pushed too hard to get them inside then the breaker would trip again on shore power. Major PITA for me then.

GFCI units are kind of like a teeter totter
If current in the black and white (hot/Neutral) is perfectly balanced they are happy as a clam which is NOT in Sauce (in sauce the clam is not happy, it is lunch).

But if Bill Cosby's friend Fat Albert sits on one end and Tiny Tim (From A Christmas Carol) on the other.. in fact if there is any difference at all in the weight on the ends.. CLICK of Darkness (they trip)

Is it really a GFC breaker or is a standard breaker feeding GFCI receptacles? A GFC breaker will have a reset button.
Test genset for correct power configuration. Could use 30/15-20 adapter with one of the small plug in circuit testers.
Pushing wires back into breaker? please explain?
What style of receptacle in bathroom?

I think you mean GFCI outlets. I haven't heard of any TTs having GFCI breakers installed.

GFCI outlets trip on a very small imbalance (as little as 5 ma) in current between the hot pin and the neutral pin. They don't trip on overcurrent or voltage surge.

The GFCI breaker with a reset button was in a small receptacle next to sink in 2003 TT bathroom and after I looked at the wiring and pushed them back into the tiny outlet this placed pressure on one or more of the wires and when I plugged into shore power they popped again. Everything worked fine if I left the wires dangling outside the outlet and close to sink. There may have been another GFCI outlet in the kitchen cabinet area but do not remember after 5 or 6 years. TT was sold at good price to Reno RV dealer for use at Burning Man festival and I let him deal with the issues.

Trailer was an R Vision Trail Cruiser bunkhouse model

BB_TX wrote:
I think you mean GFCI outlets. I haven't heard of any TTs having GFCI breakers installed.

GFCI outlets trip on a very small imbalance (as little as 5 ma) in current between the hot pin and the neutral pin. They don't trip on overcurrent or voltage surge.

Two different faults will cause a GFCI outlet to trip. So make sure you end up chasing the affending fault.

1) current imbalance between the hot and neutral legs. The most common reason for a trip.
2) A neutral/ground fault. If a GFCI detects ground and neutral legs are connected they trip. Code says ground and neutral can only be bonded at the panel. So for about the last 10 years or more GFCI will trip on this fault.

ktmrfs wrote:

2) A neutral/ground fault. If a GFCI detects ground and neutral legs are connected they trip. Code says ground and neutral can only be bonded at the panel. So for about the last 10 years or more GFCI will trip on this fault.

I believe that's been a part of the code (more specifically, the UL requirements for GFCIs) for something closer to 30 years. I've had a tough time sussing out exactly when the actual requirements came into effect, but it has been decades.

OP: That is a GFCI receptacle not a breaker.
They go bad! Should replace with one from a hardware store not an RV store(price). Verify wiring as miss wiring causes many problems.

In some cases they can also false trip due to radio frequency interference. I just replaced two GFCI breakers at my aunt’s house that kept tripping randomly every several days. After some looking online I found YouTube videos showing people keying up portable radios by their breakers that would trip them. In her case the newer version of her breakers had been redesigned to address this known problem. The originals were only about 7 years old, Eaton brand.

Some in some cases a “bad” GFCI could be one of these older ones that aren’t happy in the wrong environment and a new one fixes it.