36
NOTE: When there is no ignition, check that the gas cock is open.
3.8. 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 SHUTDO
WN:
f
or this group of errors
(characterised on the display by the letter “
E
E
”) the situation
is automatically remo
ved 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 by pressing
the RESET button located at the centre of the display.
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 starting 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 flame in one period
during operation
AA3333
Problem with the fan
AA9977
Problem with the electronic monitoring
AA9988
Problem with the electronic monitoring
AA9999
Prob
lem with the electronic monitor
ing
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 v
alv
e closed
EE 3300
Outdoor sensor open circuit
EE 3311
Outdoor sensor in shor
t circuit
EE 3333
F
an oper
ation sensed with no demand f
or
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 flo
w or retur
n temper
ature probe
EE 9999
Problem within the electronic system
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.
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