Thanks for the replies. I’m going to invest in an EMS. The surge protector was about 8 years old. Apparently they’re only good for 2-3 years and no real way to check them. All normal at present. I do believe it was the 50 amp power cord where it attaches to the coach. It was not completely secured. And yes I was getting 240 V at each leg of the outlet. Scary!
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