Hi Peter & Karen,
I can't comment on your question because I don't own a Ventana 3933 (yet), but it sounds like that fuse needs to be moved. I can't imagine why it would be located where you indicatd it is.
The reason for my reply is that I am looking at buying a left over 07 unit like yours and am attracted to the living area (with free standing round table). I really like the dry bar which, although shallow, adds a nice look to the living space. The one shortfall that I see is that this floor plan only has a single vanity and sink in the bath area. How have you found the coach as far as galley space, bath vanity and storage space as well as driving manors/stability, and any other issues like weight distribution etc.? Do you know if the TVs are digital ready (have digital tuners) so they will be able to receive the new digital broadcasts after this coming February?