VBM Domobar Super 2B Manuel D'instructions page 75

CONTROL OF W ATER FILTER
Once a month, check the status of the water filter (1) located
within the tank; if dirty, replace it.
1
8.4,
ALARMS.
A1 = Coffee boiler probe alarm.
A3 = Services boiler probe alarm.
In case of malfunction, turn off the machine immediately,
and remove the plug from the outlet.
Call the Authorized Service Center.
33