Forest River Surveyor 210 - Power Issue - Trips Breaker

[upmm019]

I have a 2003 Forest River Surveyor 210, MODEL SV-210 Hybrid.

I just got it out of storage and today I attempted to power the RV however, each time I plug it in the GFCI on the outlet I am plugging into trips.

I am using the normal RV Electrical hook up that runs into an adapter that allows for normal 110v plug in usage.

I used these same items ever since I bought it about six years ago and never had any issue.

There are no signs of rodent issues so I am totally perplexed where to even start to look.

I am leaving for a trip on Friday and need to solve this issue quickly if possible. Looking for anyone who may have some troubleshooting suggestions...

The one thing I have done thus far is I turned off all breakers in the camper and when I plug in the GFCI holds. Once I turn on the main breaker it trips.

[rjdlooking]

Bad GFI plug they do wear out.

[Bobbo]

enblethen wrote:
Do you have one of these? You can check your GFCI receptacle to insure it is wired correctly.
Have you another receptacle to plug into? A laundry room washer circuit is a good one to use for testing without going through a GFCI receptacle.
Receptacle tester

This would be a better Receptacle tester because it has a button to test the GFCI function also. But, it does cost more than twice as much.

[enblethen]

Did you check behind the circuit breakers in the rig for anything like melted neutral against the ground wire, Loose neutral, burnt phase conductor

[upmm019]

Yes, just checked and it is wired correctly.

[enblethen]

Do you have one of these? You can check your GFCI receptacle to insure it is wired correctly.
Have you another receptacle to plug into? A laundry room washer circuit is a good one to use for testing without going through a GFCI receptacle.
Receptacle tester

[upmm019]

So today using my multi-meter for continuity test I checked both the adapter and the shore cord and there was continuity on each wire but nothing cross wire.

[westend]

upmm019 wrote:
no recent work.

What will the continuity test prove?

It will show if one or more of the conductors are shorted together of if the ground conductors are open.
Shore power connectors and adaptors are a frequent failure point and it is easy to verify they are operable. It would be my starting point for diagnosing a ground fault.

[enblethen]

Westend is just thinking of a bad adapter. Possible but unlikely.
Only continuity test that would be beneficial is between the neutral and ground. If the rig has continuity there it could trip the GFCI receptacle that you are plugging into.

[upmm019]

no recent work.

What will the continuity test prove?

[westend]

Check the adaptor and shore power cord for continuity on all paths--hot, neutral, and ground.

[enblethen]

Was there any work done on the rig?

[Bobbo]

If it trips with only the main breaker on, the fault lies within the breaker box. Inspect EVERY connection to see that nothing is touching anything else. Unplug the RV from the outlet and check for continuity between the white wire buss bar and the ground wire buss bar. With the RV unplugged, there should be no continuity.

[enblethen]

Shore power cord is the one coming from the rig that you plug into a receptacle that provides power to the rig.
That doesn't make much sense.
It could have a connection between the neutral and ground inside the rig.
Do you have one of the small yellow or red circuit testers that plugs into an outlet? It is possible that the receptacle you are plugging into is not wired correctly.

[upmm019]

It does not trip if I plug into GFCI and have all of the RV breakers off.

If I turn on the main breaker but all other breakers are off it trips.

what is the shore power cord?