Hot skin issue please help

SuwanneeDave wrote:

CA Traveler wrote:
The second apparent problem is a ground fault as indicated by the hot chassis. The new adapter with a good ground can mask a ground fault. Plug the rig into a known good GFI plug and turn various equipment on and off. If the GFI trips then you need to find the ground fault.

Yeah, I am wondering how the current is getting into the skin. Shouldn't the electrical system be isolated from the chassis?

Ideally the hot and neutral wires should be isolated but devices sometimes leak very small amounts of current to ground. GFIs trip when 5ma leakage is detected. Leakage above 5ma is not considered safe. The chassis and skin should be bonded to the power cord ground.

Per above a good ground masks the leakage so plug your RV into a GFI plug periodically to make sure it's OK.

It's amazing the number of posts on these boards about tripping GFIs that are solved by plugging into a non GFI plug. Wrong answer.