on my 1976 carver 2896 at home in my yard with 110 power hooked up everything works great. however this sat. i put my boat in the local lake and docked it at my local marina .and this is what happened with shore power hooked up to 30amp 125v i got a loud buzzing in my circuit panel .so i found it. on a little thing in the back of my panel with one white wire and one little green wire going to the ground rod bar.please someone help and tell me what this is? i took take white wire off and pluged my boat back in and everything works great no buzzing ,but i know this little thing is very very inportent
okay i just left the marina where my boat is and this is what they told me / they say i need to change my two main wires on my boat in my box they want me to put my black wire where my white wire is ?? should i do this ,i don't feel like it is a good idaer