HELP AC Outlets blowing devices!

SDrummer wrote:
Sorry it took so long to reply back, I appreciate all the help.

So yesterday I opened the main circuit breaker box and found that the main black hot line is fluctuating between 0V-5V when in contact with neutral and ground. The red hot line reads great at 120v when connected to neutral and ground. I checked outside at the shorepower hookup and both hot lines are reading great at the receptacle. I also checked at the other end of the wire where it hooks into the trailer and both lines are reading 120v. There were 4 screws holding the receptacle into the trailer so I took that out and measured the voltage from the wires that are feeding into the trailer and everything is okay. I am guessing the problem is at the transfer switch where the shorepower meets the generator power.

There are 10 circuit breakers, 6 that are fed from the red hot line and 4 that are fed from the black hot line. All 4 that are connected from the black hot line are giving the bad voltage readings of 0-5V.

I have attached a picture showing the circuit breaker box. Circuits 3-4 & 7-8 are the circuits fed off the black wire giving bad voltages.

My question is does this explain the problem I have been having with the appliances blowing? Or do you guys believe I still have an open neutral somewhere?

Thanks

So are you saying the 4 circuits on the black wire don't even work at all?

An open hot (black) wire would make those circuits fail but would not cause the red side to rise. There must still be a neutral issue, IMHO.