It your RV refer is like a residential refer, there is only one condenser (in the freezer) with an opening from the freezer into the refer. There is a valve (flapper) that allows the cold air from the freezer into the refer portion. This valve is thermostatically controller. If you get too much humidity into the freezer portion that flapper can freeze up, and that is normally in a position that does not deliver sufficient cold to get the refer side cold. Find the valve and warm it up with a hair dryer, once it is freed up you will be fine.
Dave, Bobbi and Fenway
2005 38' FDTS Alpine Limited, 2016 Jeep Grand Cherokee Limited
Lake Wales, FL