Ariston ACO 27 MFFI Kurulum ve Servis Talimatları - Sayfa 36

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3.8.
B
S
OILER
AFETY
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.
DISPLAY
CAUSE
A A 0 0 1 1
Too many attempts to ignite on starting up
No water or no water circulation in central
A A 0 0 2 2
heating system
The heating flow temperature exceeds 105°C
A A 0 0 3 3
during operation
Too many failures to flame in one period
A A 0 0 7 7
during operation
A A 3 3 3 3
Problem with the fan
A A 9 9 7 7
Problem with the electronic monitoring
A A 9 9 8 8
Problem with the electronic monitoring
A A 9 9 9 9
Problem with the electronic monitoring
N
:
When there is no ignition, check that the gas cock is open.
OTE
36
S
YSTEMS
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:
(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 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
Domestic hot water temperature probe
E E 0 0 4 4
in open circuit
Domestic hot water temperature probe
E E 0 0 5 5
in short circuit
E E 0 0 6 6
Heating flow temperature probe in open circuit
E E 0 0 7 7
Heating flow temperature probe in short-circuit
Heating return temperature probe
E E 0 0 8 8
in open circuit
Heating return temperature probe
E E 0 0 9 9
in short-circuit
Under floor heating temperature probe
E E 1 1 0 0
in open circuit
E E 2 2 0 0
Flame detected with gas valve closed
E E 3 3 0 0
Outdoor sensor open circuit
E E 3 3 1 1
Outdoor sensor in short circuit
Fan operation sensed with no demand for
E E 3 3 3 3
central heating or domestic hot water
Fan operation but air pressure switch
E E 3 3 4 4
does not close
Remote Control CLIMA MANAGER room
E E 8 8 0 0
sensor in open circuit or short circuit
E E 9 9 4 4
Problem within the electronic system
E E 9 9 5 5
Error reading flow or return temperature probe
E E 9 9 9 9
Problem within the electronic system
for this group of errors