We were staying in a campground and the maint guy came over and told us their doing some electrical work and they are going to shut off power. Like a dummy, I didn't think to disconnect. Well they turned on the power and they fried the 12v converter. The first night of a 10 day trip. Ever since then I always have power protection. I use one that plugs into the pedestal. Not as convenient as a built in one.
https://www.campingworld.com/50-amp-...th-lcd-display