Hey Keith! Since everything switched to the new R32 refrigerant this year to comply with the EPA a new system will be necessary. None of the new units are backwards compatible with old R410A parts like yours. For a replacement I recommend the new Furrion Chill Cube. This AC system is incredibly quiet and efficient with a variable speed compressor. You can choose from the following based on color and ducted/ductless:
-Furrion Chill Cube RV Air Conditioner w Air Distribution Box - Ductless... view full answer...