Do you get any steam from the wand? If you do then it could be the solenoid is blocked especially if you are in a hard water area.
http://reedsmeals.blogspot.co.uk/2011/04/overhaul-of-gaggia-classic-espresso.html
when my solenoid blocked the relay would only go one way - so I got water from the wand but not the shower screen. a fairly easy fix though
@kkg337 started
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Do you get any steam from the wand? If you do then it could be the solenoid is blocked especially if you are in a hard water area.
http://reedsmeals.blogspot.co.uk/2011/04/overhaul-of-gaggia-classic-espresso.html