more than likely you just lost the yellow belt on the blower connection. Take the cover off of the blower/motor combo. Its grey with one screw in the middle. Look at the belt if its off replace it. Increase the tension. 2 holes in fly wheel lead to 2 screws on motor. Buy 2 spares remember yellow side to the flywheel.
Does the blower come on when your press goes on impression? Do you hear the solenoid pulsing at every revolution? In the sprayer electrical box, there is a thermal overload and a motor contactor. You (or if you are not electrically inclined - a competent electrician) should check for the required voltage in the above mentioned electrical box. C14 in the press electrical cabinet should also be part of the circuit. Good Luck Steve