From the 2007 Contessa Manual and as David said...
The water valve supplying the refrigerator must
be turned on, and the ice level bail arm must
be in the down position. The valve is located
behind the water service bay with the water
pump.
On my 2008, there is a sheet metal panel (covered with carpet) that is attached to the bulkhead near the water service bay. remove the 4 screws that hold the panel and the water pump and valve should be right there. On my 2008, the water filter is also in this area. If yours is too, now would be a good time to replace it. I used the Watts GAC10NRV 10" GAC Replacement Filter Cartridge.