ONE
46
MACHINE ALERTS
· Alarms and warnings
To alert users that routine service of the machine is due or against a situation that could possibly cause
damage to the machine, ONE has the following alerts programmed into its software:
Error
Code
Alarm Name
Warning
/ Alarm
Solution
A1 NTC is short-circuited Alarm Call a service technician to replace it
A2 NTC is not connected Alarm Call a service technician to replace it
A4
Steam Boiler
FillingUp timeout
Alarm
"Turn the main switch o and on again.
Check that the machine is receiving water."
A7 Drink too long Warning Pull the group lever down to remove the alarm
A10 Empty tank Alarm Rell the tank.
A11 Water tank not in place Alarm Put the tank in the correct position
Error
Code
Alarm Name
Warning
/ Alarm
Solution
Steam boiler sensor
AL1 Temp. Probe shortcircuited
AL2 Temp. Probe unconnected"
Alarm Call a service technician to replace it
Group boiler sensor
AL1 Temp. Probe shortcircuited
AL2 Temp. Probe unconnected"
Alarm Call a service technician to replace it
Steam boiler FillingUp timeout Alarm
Turn the main switch o and on again.
Check that the machine is receiving water."
Empty tank Alarm Rell the tank.
Water tank not in place Alarm Put the tank in the correct position
Maintenance / Cleaning
(if enabled)
Warning
(Blinks)
Do the maintenance / Cleaning.
Reset counter on Barista menu.
Filter reset
Warning
(Blinks)
Replace water lter.
Reset counter on Barista menu.
1B versions
2B versions