Try doing a bypass dose without dropping any coffee in the chute. The machine should make a cup of hot water. Try all 3 cup sizes in the same way to make sure that each produces some water when doing this type of "blank shot". If they all work, you may be using too much coffee. Try using a little less than one level scoop of coffee in the chute.
Rinza : http://www.wholelattelove.com/Urnex/urn_rinza.cfm
Unfortunately there is no pannarello wand that will fit on the Academia.