MANUAL FOR USE AND MAINTENANCE
24
LSC 001 -UK- REV. 06
3.2
ALARM CONTROL
The appliance is run by a program that controls the correct operation of its functions and in case one or
more of these is not properly performed, the display will signal the relevant alarm message together with
an acoustic signal.
NOTE. Messages can be divided into two different types: blocking and non-blocking alarms.
• Blocking alarms block the appliance completely and to make it work again, it is necessary to switch it
off completely and to switch it on again using the main switch (3).
• The non-blocking ones do not block the appliance or its functions and it is necessary to press the button
to cancel them.
Loss of data
This alarm is not a blocking one.
It appears when the main running program of the appliance cannot find the parameters set at installation
(temperature and dose settings) in the memory and therefore, the appliance will continue to operate but
with default data (standard).
(If this alarm appears, it is necessary to have the appliance reprogrammed by an authorised Service
Centre).
High temperature
This alarm is not a blocking one.
It appears when the main running program of the appliance recognises a boiler temperature value
that is
5 °C higher than the preset temperature. If this alarm appears, the static relays are temporarily
disconnected.
Temperature probe failure
This alarm is a blocking one.
It appears when the main control program of the appliance recognises that the boiler temperature sensor
is not operating within the correct range:
• Temperature lower than
50 °C 20 minutes after switching on (manual or by timer) or in real time, during
normal operation; sensor disconnected
• Temperature higher than
140 °C (only during normal operation); short circuited sensor (if this alarm
appears, call an authorised Service Centre immediately).
Automatic water filling system
This alarm is a blocking one.
It appears when the main control program of the appliance signals that the automatic water filling system
has been operating for more than 4 minutes (if the problem persists, switch off the appliance and contact
an authorised Service Centre).
Transformer failure
This alarm is a blocking one.
It appears when the main control program of the appliance signals that the power (
24 V) of the transformer of
the solenoid valves is below
13 V (if this alarm appears, call an authorised Service Centre immediately).
AL00
AL01
AL02
AL03
AL04
