electrical short?

vermilye wrote:
While I agree that most RVs will "float" without the ground connection, the problem is it is difficult for the average user to tell whether the tingle they feel is the normal "float" or a fault that could cause a dangerous shock hazard. The importance of a good ground connection cannot be over emphasized.

Absolutely agree, and thanks for adding that. Even though it's "normal" for an ungrounded RV to "float", it's a totally unacceptable situation because the ground is the last line of defense when there is an electrical fault that IS a real hazard. On a purely technical basis when the RV tingles, it's usually that the only reason is the lack of a ground connection, and the tingle is probably non-hazardous. But it could be a genuine hazardous situation and should be always treated as such. The RV should not be used with AC power until it is fixed. No exceptions. I also recommend that any RV be periodically plugged into a GFCI outlet which will detect many common electrical faults that otherwise don't show themselves. This issue comes up often and there's almost always a set of incorrect diagnoses posted. Too bad there's not a good sticky for it.