If you are in the Myrtle Beach KOA they definitely have a dangerous low voltage problem. We were there a couple of weeks ago and one afternoon our EMS kicked off so we turned off the AC and WH and after a bit the power came back on. I have a volt meter plugged in so I saw that the voltage was way down in the red zone. After a little while when I saw the voltage come back up to acceptable levels we turned things back on. The next morning our EMS kicked off again so we packed up and left. I have sent an email to the campground to tell them of our experience.