Obviously , we r 50 amp, w internal and an external surge protected.  Recently, when we try to use outlets on passenger side , kitchen, living area, and the microwave or elec ht wtr is on, it kicks coach off. Then have to wait for it to recirculate.  And we cut off all to use an outlet, like coffee maker, etc.  AC not on at anytime.  Happened in 3 recent campgrounds, so not just a isolated pole.  Suggestions to check out,?  cked out all the fuses, breakers above microwave, none blown or kicked off.  aNy options would be appreciated...