Astoria 1GR Use And Maintenance Manual page 52

Problem
SAE version:
COFFEE IS BEING DISPENSED
INCORRECTLY
THE COFFEE DOSE IS NOT
CORRECT
THE DOSE BUTTON LED IS
FLASHING
SAE version:
THE LEDS OF ALL THE
PUSHBUTTON PANELS ARE
FLASHING
AEP version:
THE FRONT LED IS FLASHING
UNEVEN AMOUNTS OF MILK
ARE DISPENSING FROM THE
CAPPUCCINO MAKER
THERE ARE AIR POCKETS IN
THE MILK FROTH FROM THE
CAPPUCCINO MAKER
THE PUMP WORKS ONLY WITH THE
MANUAL DISPENSING BUTTON
COFFEE IS BEING DISPENSED
INCORRECTLY
THE COFFEE DOSE IS NOT
CORRECT
BUBBLES IN THE MILK FROTH
54 108
of
Cause
• The volumetric dosing device connection is
faulty.
• The electronic control unit connection is faulty.
• The volumetric dosing device connector is wet.
• The volumetric dosing device is faulty: the LED
does not flash during the dispensing process.
• The coffee has been ground too finely: there
isn't enough water flow in the dosing device.
• The non-return valve is losing pressure (the
dose is too small).
• The expansion valves are losing pressure (the
dose is too small).
• Water is leaking from the group solenoid valve
when coffee is being dispensed or when in
standby.
• The volumetric dosing device is partially ob-
structed.
• The water stops being automatically filled af-
ter a few minutes.
• The timeout device has cut in.
• There is no water in the mains.
• The automatic level device valve is closed.
• Some of the hoses in the circuit are clogged.
• The probe and/or the mass are disconnected.
• The milk has run out.
• The milk injector is clogged.
• The cappuccino maker is clogged.
• The suction hose is clogged.
• The silicone tube is detached.
• The air regulator is open too much.
• The air suction hose is disconnected from the cap-
puccino maker.
• The pump fuse of the electronic control unit
is burned out.
• The volumetric dosing device connection is faulty.
• The electronic control unit connection is faulty.
• The volumetric dosing device connector is wet.
• The volumetric dosing device is faulty: during
dispensing the dosing device LED does not flash.
• The coffee has been ground too finely: not
enough water is flowing into the dosing de-
vice.
• Water leakage from the group solenoid valve
during coffee dispensing or when in stand-by.
• The volumetric dosing device is partially ob-
structed.
• The air regulator is open too much.
• The air suction hose is disconnected from
the cappuccino maker.
• The frothed milk is too hot.
Action
• Check that the volumetric dosing device con-
nector has been connected properly.
• Check that the connector (8/10 poles) has
been connected correctly to the electronic
control unit.
• Remove the volumetric dosing device connec-
tor and thoroughly dry the contacts.
• Replace the heads of the volumetric dosing
device or replace the whole dosing device.
• Suitably adjust the grind and check the grind-
ers, if necessary.
• Check and replace the non-return valve, if nec-
essary.
• Check and replace the expansion valves, if
necessary.
• Clean and replace the solenoid valve, if necessary.
• Clean or replace the volumetric dosing device.
• Turn the machine off and then back on.
• Open the water mains valve.
• Open the automatic level device valve.
• Check and replace the faulty hoses.
• Check and restore the connections.
• Refill the milk.
• Clean the milk injector.
• Clean the cappuccino maker with the brush.
• Clean the milk suction hose.
• Connect the hose correctly.
• Properly calibrate the air regulator.
• Restore the connection via the hose.
• Replace the pump fuse of the electronic con-
trol unit (10A).
• Check that the volumetric dosing device con-
nector has been connected properly.
• Check for proper connection of the elec-
tronic control unit connector.
• Remove the volumetric dosing device con-
nector and thoroughly dry the contacts.
• Replace the heads of the volumetric dosing
device or replace the whole dosing device.
• Suitably adjust the grind and check the
grinders, if necessary.
• Clean and replace the solenoid valve, if necessary.
• Clean or replace the volumetric dosing de-
vice.
• Properly calibrate the air regulator.
• Restore the connection via the hose.
• Reduce the temperature of the frothed milk,
increase the speed of the milk pump.
TECHNICIANS' manual