Oregon_Camper
Well-known member
... When I tried the red and black terminals where you showed, I set the multi-meter to DC, number to "20", touched both terminals and got a 0.0 reading. Batteries are set to on (disconnect switch is off), shore power is connected. Should I do something different?
You can hear the fan running, so the AC power is getting to converter.
But...if you are not seeing 13.4 volts coming out of the red/white wires, something is wrong, as that is your primary 12v power source for the entire trailer...battery is secondary.
Try this...physically disconnect your batteries from RV.
Then plug RV back in....do you have interior lights...can you open/close a slide out? If so, the converter is working and providing 12v to RV