Thank you,
this had to be the most frustrating trouble I've ever dealt with in 20 years of doing this and honestly I feel like I just eventually stumbled onto the answer, but I'll take it : ) If that machine was in another building like your Norstar problem I'm not so sure I would have found it.

As for the customer reaction, let's just say he seemed pretty underwhelmed by the fix but I told him that he may want to get an electrician to take a look at his equipment and particularly his ground.

Samsung: From what I gather they know the problem exists on the engineering side and hopefully they'll pass it on to the tech support side but apparently I seem to be the first "lucky one" to run into it on the field side but if nothing else it might save another Tech out there a butt load of stress.

Have a great Holiday