There could possibly be a refrigerant leak in your condenser unit so swapping it out would be the correct choice. The Furrion Chill HE Replacement RV Air Conditioner # FR82PV would be compatible, but you could possibly save a couple bucks if the wire harness adapter isn't needed. If you remove the cover on your air distribution box you should be able to see your controller and see a wire harness hanging down from the condenser, plugging into the controller.
If the plug has 6-pin connector... view full answer...