LB.05099.02
Pag. 42
18/10/16
4) GRX INFUSION T.O.
42 GRX INFUSION T.O.
This alarm is visualized on display by code 42
The message signals that a time-out problem of the flowmeter occurred.
At the next dose the message will be cancelled if dispensing is carried out correctly.
5) STEAM HEATER TIME OUT
34 STEAM HEATER T.O.
This alarm is visualized on display by code 34
It indicates that the heating up stage of the coffee boiler has exceeded 12’ time-out, verify:
1)
Faulty temperature probe
2)
Temperature probe stopped
3)
Faulty relay
4)
The steam boiler safety thermostat has deactivated
5)
Faulty master board
5) STEAM NOZZLE TEMPERATURE
36 STEAM NOZZLE
TEMPERATURE
This alarm is visualized on display by code 36
Cause: The Barista steam probe is not sending signals to the control unit
Result: The Barista steam wand works without probe control use it by pressing the push button and press it again to stop the
steam delivery
Solution: carry out the following controls.
1
Steam probe is earthen
2
Steam probe is disconnected
3
Faulty control unit
6) GRX TEMPERATURE
49/50 GRX TEMPERATURE
This alarm is visualized on display by code:
49 for Group 1
50 for Group 2
1.
First case:
the temperature probe is defective. The probe sends the following signal to the pcb: 0 Ohm.
To check the temperature the probe sends to the pcb press key no. 15 without any smart card into the slot
Result: boiler heating is interrupted and the buttons of coffee-based, milk-based and filter drinks are disabled.
Solution: turn OFF the machine. Replace the temperature probe. Turn the machine ON.
2.
Second case:
the temperature probe is defective. The probe sends the following signal to the pcb:
154 Ohm (short circuit).
To check the temperature the probe sends to the pcb press key no. 15 without any smart card into the slot
Result: boiler heating is interrupted and the buttons of coffee-based, milk-based and filter drinks are disabled.
Solution: Turn OFF the machine. Replace the temperature probe. Turn the machine ON.
3.
Third case:
Faulty control unit