I'm new to this forum. Been Rving for many years, but just bought this 2013 Silverback. My last FW was a 2003 Montana that we bought new. Question: I have a Progressive Industries SS50 Surge Protector. I'm having a problem with "open ground". In my old unit I had this same problem, but after having the pedestal checked out, finally figured out it was because I was using 30 amp plug rather than 50 amp plug. Switched to 50 amp plug, problem went away. Got this Silberback a week ago and the problem is back. I'm using the standard 50 amp cord. Is "open ground" mean I'm only using a sing phase? or something else? Mind you I'm not an experience tech.