[jimcol]

I would check the plug going into the unit on your shore power line. You could be losing the neutral. Those lugs have a way of getting a little loose then go open when under full load. Once it cools down it makes good connection again until a load will create the same situation. Those lugs coming loose are why many of us opted for the 90 degree plug to try and take some of the downward strain off the anaconda. Jim