Hi sir:
Test if
1) Blower motor are running ?
2) If Not, reset the overload thermic Q92, most of them has a small potentiometer for increase the amps, see what amps position is, and increase with screwdriver 1 amps more. Tight the cables for Overload thermic Q 92, and see if the terminal of blower motor are o.k, tight very well the wires from motor too.
3) The switch S87 activate the magnet Y94, for the aire is coming to the table. see if the switch activate the Magnet valve is open, if open see if there are some hoses loses, and tight the clamp.
4) If the magnet Y94 is NOT open ,the electronic board SK, the small relais K2, can be dirty or defective, try to clean the contacts, or replace IT the relais, the magnet active with +25Vdc.