Originally Posted by Wizard
Actually its when you don't have enough Amperage and has no effect when on a 50 amp service or generator.
But if it is malfunctioning, like mine was due to a failing converter sending it "dirty" 12vdc, it might not recognize the 50A service and still shed some items. (the converter was bleeding AC voltage over to the DC output) The EMS was very sensitive to that problem and went bonkers.
That is what happened to me and others, according to Winnie and Parrallax, so I'd at least rule out that possible cause.
Since replacement of the converter, no EMS issues in years.