LB.05080.00 Pag.47 16/04/2014
4) 15 Alarm of too much coffee in the brewing chamber
15 Too much coffee
This alarm is visualised on display by code 15
Causes: the upper piston has positioned itself where the wet seal of the piston gasket in the brewing chamber is not
guaranteed.
Result: the machine is switched OFF.
Solution: carry out the following controls.
1) Reduce coffee quantity
2) Clean the upper piston gasket from any coffee residue
3) Check the upper piston alignment with the brewing chamber.
4) Faulty encoder
Please Note: before alarms 4) and 6) the upper piston tries to insert itself into the brewing chamber twice.
6) 32 Boiler filling alarm
32 Filling up T.O.
This alarm is visualised on display by code 32
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.
Check the following:
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 filling solenoid valve
6) incorrect electrical connections (level probe -SLC- misconnected wire).
7) PC board relè
7) 38 Steam boiler temperature alarm
38 Boiler temperat.
This alarm is visualised on display by code 38
First case: the temperature inside the steam boiler has reached the limit value of 129°C (264.2°F) or more.
Result: boiler heating is interrupted and all dose buttons are disabled.
Solution: turn OFF the machine. Replace the electromagnetic switch as its contacts might get stuck. Turn the machine ON.
Second case: the temperature probe is defective. The probe sends the following signal to the pcb: 0 Ohm.
Result: boiler heating is interrupted and all dose buttons are disabled.
Solution: turn OFF the machine. Replace the temperature probe. Turn the machine ON.
Third case: the temperature probe is defective. The probe sends the following signal to the pcb: 154 Ohm (short circuit).
Result: boiler heating is interrupted and all dose buttons are disabled.
Solution: turn OFF the machine. Replace the temperature probe. Turn the machine ON.
8) 34 Steam heat time–out alarm
34 Steam heat T.O.
This alarm is visualised on display by code 34
Cause: It indicates that the boiler heating up stage has exceeded the 15 minutes time-out.
Result: the machine is OFF.
Check the following:
1) Faulty electromagnetic switch
2) The boiler safety thermostat has set in (see alarm description of boiler safety thermostat)
3) Software problem (carry out machine preset)
4) Faulty Master board electromagnetic switch
5) Safety thermo switch.
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