Mattyd wrote:
1) my batteries are not being charged by the shore power and/or 2) there is a pretty good drawn going on.
3) Bad connection btw battery and solar controller.
With that basic controller you should at least have an independent voltmeter for battery. Tell your friend electrician to install
$13 battery monitor. It tells you amps, volts and AH drawn from the battery.
And, while he is at it, ask him to install a loads Off switch as well. In some rigs there is already such a switch. You don't want any loads when camper is in storage.