Hello. I am getting a loud buzzing when I apply shore or genset power to my MultiPlus 3K 120 system. I have tested this with and without AC load and I get the same buzzing. We are at anchor alot so we use our genset mostly to run our AirCon Unit. I have had the buzzing shut down down the generator completely, meaning the genset appears so loaded down it actaully stops running (no load applied). On occassion, it appears the transfer to the genset has happen and the same buzz and overload condition will appear when I apply load, again shuting down the genset. Thanks