Yes the Fridge and water use 12 volt in most RV's. but he said refrigerator working on A/C (Just a thought. if it's a residential fridge then it does not use 12 volt.. that is what may have confused me).
Yes total loss of 12 volt. but he said batteries were charged... And the converter should provide 12 volts.
Re-reading my original post I clearly meant to address 12 volt issues and simply forgot. Happens some times. .I mean I'm an old man (65) sometimes I forget things. Sorry.. Thanks to CA Traveler for pointing it out.