55
of
76
TECHNICIANS manual
ENGLISH
Problem
Cause
Action
COFFEE IS TOO COLD
•
The electrical heating element of the coffee boiler
is faulty.
•
The wiring is faulty.
•
Lime scale on the heating element.
•
The heating element protection thermostat inter-
vened.
•
Lime scale has reduced the circulation of water.
•
The dispensing group is cold.
•
Replace the boiler's electrical heating element.
•
Check for any faulty connections.
•
Clean the machine.
•
Reset the heating element protection.
•
Clean the connections of the exchanger, and clean
or replace the two circulation tubes
•
Eliminate air pockets in the hydraulic circuit in the
following manner:
-
disconnect the pump from the power supply;
-
close the water tap of the softener;
-
perform a dry dispensing run for a few minutes;
-
connect the pump to the power supply;
-
open the water outlet tap of the softener;
-
dispense until water comes out;
-
wait a few minutes for heating.
COFFEE IS TOO HOT
•
Boiler temperature is too high.
•
Reduce the pressure in the boiler.
COFFEE IS BEING DISPENSED TOO
QUICKLY
•
Coffee is ground too coarsely
•
The diameter of the injector is too large.
•
The dose of ground coffee is too small.
•
Adjust the grinding of the coffee.
•
Replace the injector with one of a smaller diameter.
•
Check the amount (grams) of the ground coffee you
are using.
COFFEE IS BEING DISPENSED TOO SLOWLY
•
Coffee is ground too finely.
•
The injector is clogged.
•
The dispensing group is clogged.
•
The filter holder is dirty.
•
Adjust the grinding of the coffee.
•
Replace the injector.
•
Check and clean the dispensing group.
•
Clean and replace the filters, if necessary.
SHUTDOWN OF THE ELECTRONIC SYSTEM
•
The control unit fuse is burned out.
•
One of the volumetric dispenser's contacts is
grounded.
•
Replace the main fuse.
•
Check the connection of the volumetric dispenser.
COFFEE DISPENSING
IS NOT CONFORMANT
THE COFFEE DOSE IS NOT MET
•
The connection of the volumetric dispenser is faulty.
•
The connection of the electronic control unit is faulty.
•
The connector of the volumetric dispenser has
humidity on it.
•
The volumetric dispenser is faulty: the LED does not
flash during dispensing.
•
The coffee is ground too finely: there is not sufficient
water flow in the dispenser.
•
The non-return valve loses pressure (the dose is
too small).
•
The expansion valves lose pressure (the dose is too small).
•
Water leakage from the group solenoid valve during
coffee dispensing or when in stand-by.
•
The volumetric dispenser is partially obstructed.
•
Check for proper connection of the volumetric
dispenser connector.
•
Check for proper connection of the electronic control
unit connector.
•
Remove the connector of the volumetric dispenser
and thoroughly dry the contacts.
•
Replace the heads of the volumetric dispenser or
replace the dispenser.
•
Adjust the grinding suitably and check the grinders,
if necessary.
•
Check and replace the non-return valve, if necessary.
•
Check and replace the expansion valves, if necessary.
•
Clean and replace the solenoid valve, if necessary.
•
Clean or replace the volumetric dispenser.
NON-UNIFORM MILK DISPENSING FROM
THE CAPPUCCINO MAKER
•
Out of milk
•
Milk injector obstructed.
•
Cappuccino maker obstructed.
•
Suction pipe clogged.
•
Silicone tube detached.
•
Refill milk.
•
Clean the milk injector.
•
Clean the cappuccino maker.
•
Clean the milk suction hose.
•
Connect the hose correctly.
AIR POCKETS IN THE MILK FOAM FROM
THE CAPPUCCINO MAKER
•
Air regulator too open.
•
Air aspiration tube disconnected from the cappuc-
cino maker.
•
Properly calibrate the air regulator.
•
Restore the connection through the hose.
If the problem cannot be solved, turn the machine off and contact
the Manufacturer.
