Astoria SABRINA SAE DISPLAY Use And Maintenance Manual page 54

Sabrina
Problem
THE COFFEE IS TOO COLD
THE COFFEE IS TOO HOT
COFFEE IS BEING DISPENSED TOO
QUICKLY
COFFEE IS BEING DISPENSED TOO SLOWLY
THE ELECTRONIC SYSTEM HAS
SHUTDOWN
COFFEE IS BEING DISPENSED UNEVENLY
THE COFFEE DOSE IS NOT BEING MET
UNEVEN AMOUNTS OF MILK ARE
DISPENSING FROM THE CAPPUCCINO
MAKER
THERE ARE AIR POCKETS IN THE MILK
FROTH FROM THE CAPPUCCINO MAKER
If the problem cannot be resolved, turn the machine off and contact the Manufacturer.
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of
Cause
The heating element of the coffee heating unit is
faulty.
The wiring is faulty.
There is limescale on the heating element.
The heating element protection thermostat has
cut-in.
Limescale has reduced the water circulation.
The dispensing group is cold.
The heating unit temperature is too high.
The coffee has been ground too coarsely.
The diameter of the injector is too big.
The ground coffee dose is too small.
The coffee has been ground too finely.
The injector is clogged.
The dispensing group is clogged.
The filter holder is dirty.
The control unit main fuse has burned out.
One of the volumetric dosing device's contacts is
grounded.
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 obstructed.
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
cappuccino maker.
Action
Replace the electrical heating element.
Check for any faulty connections.
Clean the machine.
Reset the safety heating element.
Clean the exchanger connections, and clean or
replace the two circulation pipes.
Eliminate air pockets in the hydraulic circuit in the
following manner:
- Disconnect the pump from the power supply;
- Close the softener water tap;
- Perform a dry dispensing run for a few minutes;
- Reconnect the pump to the power supply;
- Open the water outlet tap of the softener;
- Dispense until water comes out;
- Wait a few minutes for it to heat up.
Reduce the pressure in the heating unit.
Adjust the coffee grinder.
Replace the injector with one that has a smaller
diameter.
Check the amount (grams) of ground coffee being used.
Adjust the coffee grinder.
Replace the injector.
Check and clean the dispensing group.
Clean and replace the filters, if necessary.
Replace the main fuse.
Check the volumetric dosing device connection.
Check that the volumetric dosing device connector
has been connected properly.
Check that the connector has been connected
correctly to the electronic control unit.
Remove the volumetric dosing device connector 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.
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 dosing device.
Refill the milk.
Clean the milk injector.
Clean the cappuccino maker.
Clean the milk suction hose.
Connect the hose correctly.
Properly calibrate the air regulator.
Restore the connection via the hose.
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