37
These doses have already been stored into the electronic station by the
manufacturer. They are set to 20cc. for a low-level coffee and to 40cc for a high-
level coffee, and are used to check the proper operation of the machine.
To obtain this preset dose, press the C/S button (18) for at
least 10 sec. (see fig.56) or at least until the Leds of the
three buttons stop flashing.
fig.56
If no coffee is delivered after entering the preset dose phase and pressing a button, it
means that the volumetric counter is faulty.
Replace the faulty volumetric counter.
Note: the volumetric counter must only be replaced when the machine is off,
otherwise the electronic station would be burned.
To change the volumetric counter, proceed as follows:
1 – Disconnect the wires.
2 – Disconnect the water pipes (see fig.57).
Fig.57
Take out the faulty volumetric counter and replace it with a
new one carrying out the same steps in reverse order.
CAUTION: make sure that when the cable is fitted, the
shaped profile of the cable plug fits into the profile on
the counter (see fig.58).