46
NOTE: When there is no ignition (A01), check that the gas cock is
open and gas is available.
3.10 BOILER SAFETY SYSTEMS
The boiler is protected from malfunctioning by means of internal
checks by the P.C.B., which brings the boiler to a stop if necessary.
In the event of the boiler being shut off in this manner, a code
appears on the display which refers to the type of shut-off and the
reason behind it.
There are two types of shut-off:
-
SAFETY SHUTDOWN: for this group of errors (characterised
on the display by the letter “
E
E
”) the situation is automatically
removed as soon as the cause behind it is resolved.
As soon as the origin of the shutdown disappears, the boiler
starts up again and returns to its normal operation.
-
SHUTDOWN: (characterised on the display by the letter “
A
A
”), is
not removed unless a manual intervention is made.
The boiler may return to operation only if reset, press the
button located at the centre of the display.
There follows a list of the shutdown modes and the respective codes
shown on the display.
Shutdown (“
A
A
” type): if such a situation occurs, it is necessary to
reset the boiler using the appropriate key. If this shutdown occurs
frequently, your local Service Agent should be contacted.
Safety shutdown: In the event that a safety shutdown occurs, it is
necessary to contact an Authorised Service Centre.
DISPLAY CAUSE
AA0011
Too many attempts to ignite on start up
AA0022
No water or no water circulation in central
heating system
AA0033
The heating flow temperature exceeds 105°C
during operation
AA0077
Too many failures to ignite in one period
during operation
AA3333
Problem with the fan
AA9977
Problem with the electronic monitoring
AA9988
Problem with the electronic monitoring
AA9999
Problem with the electronic monitoring
DISPLAY CAUSE
EE 0044
Domestic hot water temperature probe
in open circuit
EE 0055
Domestic hot water temperature probe
in short circuit
EE 0066
Heating flow temperature probe in open circuit
EE 0077
Heating flow temperature probe in short-circuit
EE 0088
Heating return temperature probe
in open circuit
EE 0099
Heating return temperature probe
in short-circuit
EE 1100
Under floor heating temperature probe
in open circuit
EE 2200
Flame detected with gas valve closed
EE 3300
Outdoor sensor open circuit
EE 3311
Outdoor sensor in short circuit
EE 3333
Fan operation sensed with no demand for
central heating or domestic hot water
EE 3344
Fan operation but air pressure switch
does not close
EE 8800
Remote Control CLIMA MANAGER room
sensor in open circuit or short circuit
EE 9944
Problem within the electronic system
EE 9955
Error reading flow or return temperature probe
EE 9999
Problem within the electronic system
DISPLAY CAUSE
SS0011
Ignition failure on 1st attempt
SS0022
Ignition failure on 2nd attempt
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