Prallex 7300 is a single stage (13.6 volt) converter not really very good. Suggest replace the "Works" with a Progressive Dynamics 4600 3-stage + converter.
HOwever water on the counter.. Doubt it was from flooding on the floor. more likely a leaking kitchen window.
The parallex 7300 has 3 major modules
120 volt breaker panel.. This accepts 120vac from teh shore cord (If you are wired for a generator it may come in via a transfer switch) IF you have water where you shoudl not have water good chance a GFCI back at the house it tripped. Plug something into the socket the RV is plugged into to verify it is live.
THe breaker panel then Distributes power to the RV's 120 volt stuff. A/C's AC side of fridge and water heater. Entainerment electronics Kitchen and bath and patio and the CONVERTER module This converts 120vac to 13.6 VDC and feeds the batteries and the 12 volt FUSE panel/distribution panel which then feeds the lights and water pump, furnmace AC, Fridge, Water heater control boards and fans.
The voltage you show coming OUT of the converter??? I'd like to know how you got that. It indicates eitehr a MAJOR failure. A bad meter or bad meter lead placement.. IT is well above the maximum theoretical voltage which is a bit under 20.