Al,
Sounds like you may have lost 12v. Couple of items to check.. On the large PC board in the front electrical bay there are 3 large terminals (lugs) on the right side as you are looking at the board. The top one is House battery voltage, the middle is Chassis battery voltage and the bottom on is Gnd. Check to see if you have voltage at the top 2. A drawing of the layout is on sheet 2 of of the 07 Contessa wiring diagrams in Coach Assist.
If you don't have voltage at one or both of the terminals check for a blown ANL fuse(s) in the rear run box (rear bay, pass side). Diagram is on pg 18 of 07 Contessa wiring diagrams.
if you have voltage F42 is for the front hydraulics so it should run the generator slide. (uses chassis voltage).
Steve