When using a Honda 2000i Generator with our old TC, I used to get a ground fault warning on the BlueSeas panel. It didn't affect the operation but was a concern. On my RV owners site, I found out the reason and the cure. An easy fix.
http://www.noshockzone.org/generator-gr ... al-bonding
http://www.noshockzone.org/generator-gr ... al-bonding