Good thread, I have a champion 4000 and plugged a surge gard into the 30 amp outlet.....get parttime flashing red light saying to use caution and reverse polarity read out for about 30 seconds, then get steady green light for about same time and reads correct voltage and amps....no reverse...all appliances in unit work fine.....it flips from one to the other during the whole operation no matter what kind of load....called surge gard and they say is normal because of a floating ground in all generators.....any thoughts from other users?
