Saeco Minuto, Service Manual

Page: 85 / 109

MINUTO 05 TROUBLESHOOTING
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Finish condition: No BU, Drag drawer, door Closed
and No Water sensor, Coffee beans cover closed
LED INDICATION
Led
NoBeans
Led
NoWater
Led
GenAlarm
Led Dreg
OFF OFF OFF OFF
Level 5 (Grinder-Heater)
Start condition: NO BU, NO drag drawer,
door open and No Water sensor
LED INDICATION
Led
NoBeans
Led
NoWater
Led
GenAlarm
Led
Dreg
OFF OFF OFF OFF
If the Coffee Beans cover is opened the grinder is disa-
bled and test cannot be performed. If this input are not
in the right position, Led NoBeans & Led Dreg will be
RED
ON NA NA ON
Press BUTTON ON/OFF to move to the next screen Press BUTTON ON/OFF to move to the next screen
Check the Temperature
Action by user LED INDICATION
Led
NoBeans
Led
NoWater
Led
GenAlarm
Led
Dreg
The red led General Alarm remains OFF NA NA OFF NA
ERROR: The temperature sensor is shorted or opened,
the led GenAlarm switch ON; check the wiring from the
heater to the CPU/POWER board (JP13).
NA NA ON NA
Press the Espresso button to switch on the Heater
Action by user LED INDICATION
Led
NoBeans
Led
NoWater
Led
GenAlarm
Led
Dreg
The user checkers that the absorbed current is OK NA NA OFF NA
ERROR: the absorbed current is KO; check the wiring
from the heater to the CPU/POWER board (JP17-3) and
the other wiring, or thermostats.
NA NA OFF NA
ERROR: If temperature is over 100°C, the NoWater LED
turn ON. This is a ALERT message to avoid heating the
HEATER element over dangerous temperature; and
Heater test cannot be performed.
ON
Press the Coffee button to switch on the Grinder
Action by user LED INDICATION
Led
NoBeans
Led
NoWater
Led
GenAlarm
Led
Dreg
The grinder rotates and Led NoBeans Blink every grinder
pulses.
BLINK NA OFF NA
ERROR: the led NoBeans remains OFF and after the led
NoBeans switch ON; check the hall sensor board in the
Grinder, the Grinder, the wiring from the hall sensor
board to the CPU/POWER board (JP2) and the wiring from
the Grinder to the CPU/POWER board (JP8)
ON NA OFF NA
Finish condition: With BU, Drag Drawer, door closed LED INDICATION
Led
NoBeans
Led
NoWater
Led
GenAlarm
Led Dreg
OFF OFF OFF OFF
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