lb.00056.30 Pag. 13 26/05/10
Default settings.
Keypad Coffee (cc) Foamed milk Steam milk
1 Espresso 50
1 long coffee 100
2 long coffees 200
1 Cappuccino 50 9”
1 Caffe latte 50 5” 5”
1 Latte macchiato 50 10” 14”
Tea solenoid valve: 10 seconds.
SECURITY - ALARMS
1) Boiler filling alarm.
Causes: the stage of boiler fillings has exceeded the maximum time of 2 minutes; the level of the probe (SLC) has not been reached.
Result: the machine is OFF, and all the keypad leds flash simultaneously.
Solution: carry out the following controls.
1) Level probe (SLC) is dirty, so isolated from the water (the complete filling of the boiler is checked)
2) no water from mains
3) low water pressure
4) faulty motor pump
5) faulty filler solenoid valve
6) incorrect electrical connections (level probe (SLC) cord stopped.
2) Boiler minimum level alarm.
Cause: the water level in the boiler has dropped lower than the safety level (SLS).
Result: the heating is disabled, the boiler pressure gauge indicates a falling pressure.
Solution: carry out the following controls.
1) Level probe (SLC) is earthen
2) no water from mains
3) low water pressure
4) faulty motor pump
5) faulty filler solenoid valve
6) incorrect electrical connections (safety probe (SLC) cord stopped.
3) Turbine alarm.
Cause: the volume meter is not sending signals to the control unit within a time-out of 5 seconds.
Result: delivery continues up to a time-out of 240 seconds or until the selected key is pressed.
Solution: carry out the following controls.
1) No water from mains (coffee is not dispensed)
2) clogged group piston filters (coffee is not dispensed)
3) faulty group solenoid valve (coffee is not dispensed)
4) clogged entrance filters (coffee is not dispensed)
5) blocked or faulty volume meter (coffee dispensed continuously)
6) faulty electrical connection (coffee dispensed continuously).
Note: If the coffee is dispensed continuously, use the machine as if it were manual: press the required key to start up the dose, then
press the same key to stop the dose being dispensed, after checking the amount in the cup.
4) Safety thermostat operation.
Cause: The water level in the boiler has dropped lower than the resistor.
Result: the heating is disabled, the boiler pressure gauge indicates a falling pressure.
Solution: carry out the following controls.
1) Level probe (SLC) and safety probe (SLS) are earthen
2) level probe (SLC) is earthen and resistor remote control switch has stuck contacts.
5) Safety valve operation.
Cause: overpressure in steam boiler
Result: the 1.7-1.9 bar safety valve opens and releases steam in the upper part of the machine.
Solution: carry out the following controls:
1) Pressure switch contact is stuck
2) pressure switch feed tube is clogged
3) contacts of resistor remote control switch are stuck.
6) Anti-vacuum valve.
The "10" anti-vacuum valve (see hydraulic diagram) is installed on the boiler and prevents any air remaining during the loading phase
and a depression being created during the heating phase.
7) Anti-suction valve.
The anti-suction valve is installed on the steam taps and prevents milk from entering into the boiler when there is a depression.
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