just got the camper . when we looked at it the 12v lights worked fine. brought it home and the 12v lights worked. the only issue the seller said was with the CO2 alarm. he said it was bad and so he had bypassed it when and got a 30 amp to 120 adapter and got nothing. no 12v no 120v i have 12.3 at the battery but cant find any volts in the camper but only 0.5 at the push button off switch that activates when the sink is in place. on the wires coming out of the power center i have 0v when I plug it in I got nothin. I checked the house supply and got 118 and the polarity is fine. im guessing I have an open line somewhere but with the quick splices under the camper I done know where. does anyone have a wiring diagram for a 2000 viking? or know how to test the power center? I would run new wire but I am unsure of all of the connections under the frame any help would be greatly appreciated.