I replaced my house batteries and have them all charged up. I replaced the two 6 volt with two 12 volt hooked up pos. to pos. neg to neg. When I unplug my 110 cord from the house and turn on the "aux bat" switch I got nothing. Nothing ran by the 12 volt works. There is an audiable click in front of the cab when I work the switch to either turn on or turn off the "aux batt" switch in the front of the cab, so it leads me to believe the switch is working. I have checked all fuses and tested the battery to ensure there is power at the source. All is good.
I have determined I need a new converter yesterday but shouldn't the batteries supply power without the converter working? I have checked all fuses, and tested the batteries. I can't figure it out.