espresso coffee machines
LSI 022 - Rev. 00 - Ed. 12/2015
21
The proper working pressure ranges from 8 to 10 bar. This pressure can be
viewed on the pressure gauge (12) on the appliance by switching on a delivery
group.
To adjust the pressure, turn the adjustment screw (1 - Fig. 13) of the motor
pump, after loosening the lock nut (2 - Fig. 13).
Turn the screw (1 - Fig. 13) clockwise to increase pressure and turn it
anticlockwise to decrease it: then fasten in place with the lock nut (2 - Fig. 13).
2 1
On machines with built-in pump, the pump is already preset to a pressure of
9 bar by the manufacturer.
Take note!
Fig. 13
6. SETTING THE MOTOR PUMP PRESSURE
7. EK MODEL ALARMS OPERATION
8. EP MODEL ALARMS OPERATION
LED CORRESPONDING TO THE COFFEE DOSE BUTTON DISPENSING, FLASHING AFTER 5-6 SECONDS:
This alarm is viewed when, during the delivery phase, there is a flow meter malfunction for the delivery group, or if the coffee
has been too finely ground.
After checking the grinding fineness, if the problem continues, contact an authorised service centre.
ALL LEDS CORRESPONDING TO ALL DOSES ON ALL TOUCHPADS FLASHING:
The automatic filling function for the boiler tank has been operating for more than 4 minutes (6 minutes for the 3 groups
version), total machine block. To return to the standard operating phase, switch the machine off using the main on/of switch.
If this problem is repeated frequently, contact an authorised Assistance centre.
LEDS CORRESPONDING TO THE COFFEE BUTTONS FLASHING ALTERNATELY BETWEEN THEM
The automatic filling function for the boiler tank has been operating for more than 4 minutes (6 minutes for the 3 groups
version), total machine block. To return to the standard operating phase, switch the machine off using the main on/of switch.
If this problem is repeated frequently, contact an authorised Assistance centre.
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