44
F
The boiler is protected against the risk of breakdown by internal checks
carried out by the microprocessor which, if necessary, will activate a
safety shutdown.
If the appliance stops working, the screen will display a code
corresponding to the type of stoppage and its cause.
There are two types of stoppage:
-
SAFETY SHUTDOWN
: this type of fault (indicated on the display by
the letters
"E"
or
"S"
) is of the "VOLATILE" type, in other words it is
automatically cleared when its cause ceases.
As soon as the cause of the stoppage disappears, the appliance will
restart and resume normal operation. While the boiler is in safety
shutdown mode, it is possible to attempt to restore operation by
switching it off and then on again.
-
OPERATING STOPPAGE
: this type of fault is called "NON
VOLATILE" (indicated on the display by the letter
"A"
) and in this
case, the appliance does not automatically restart.
To reset the boiler, press the
key
27
. If, after several attempts
to reset, the appliance stops again, call a qualified technician.
The following is a list of the stoppage types and the corresponding
codes displayed on the screen.
RESET
IMPORTANT
If this type of failure occurs too often, call an approved after sales technical service. For safety reasons, the boiler will only allow
5 reignition attempts in 15 minutes (pressing of the RESET button). After the fifth attempt, the boiler goes into safety shutdown
mode
E 99
.
No problem in the case of sporadic or isolated stoppages.
Display
CAUSE
A01
Three ignition attempts
A03
The output temperature exceeds 105°C during operation
A07
Too many flame separations over a period during operation
A17
Input water circulation fault
A18
No water circulation
A33
Fan problem
A97
Electronic control problem
A98
Electronic control problem
A99
Electronic control problem
N.B.:
In the case of an ignition fault, check that the gas tap is open.
15.7 Operating faults
