73
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
Error
Code
Anomaly signalled Cause Appliance status / Solution
83
OFF MODE set on
boiler (fault only
displayed on remote
device)
e boiler is set to OFF mode. Commands sent from the re-
mote device are not executed.
Reactivate all boiler functions by
pressing the ON/Stand-by button.
84
Combustion anomaly
(Power reduction in
progress)
A low supply pressure is detected on the gas line. As a result
the appliance power is limited and the anomaly is reported.
If normal conditions are restored, the
appliance restarts without having to
be reset (1). (1) (2) (4)
87
Block - gas valve
control
A malfunction of one of the components that controls the
gas valve has been detected.
e appliance does not start (1)
88
Block - gas valve
control
A malfunction of one of the components that controls the
gas valve has been detected.
e appliance does not start (1)
89
Combustion signal
unstable
e ame is unstable due to: presence of ue gas recircula-
tion, wind, unstable gas pressure, unstable fan speed, or
due to system malfunction.
e appliance keeps working (1) (2) (4)
90
Combustion signal
beyond limit
e combustion signal is beyond the adjustment range re-
quired for an extended period of time.
e appliance keeps working (1) (2) (4)
91
Incorrect ignition
block
e board has exhausted all possible actions in order to ob-
tain optimal ignition of the burner.
Press the Reset button (1)
92
Fan revs correction
limit
e system has exhausted all possible corrections of the
number of fan revs.
e appliance keeps working (1) (2) (4)
93
Combustion signal
beyond limit
e combustion signal is beyond the adjustment range re-
quired for a limited period of time.
e appliance keeps working (1) (2) (4)
94 Combustion anomaly
A problem is detected on the combustion control, which
may be due to: gas low pressure, ue recirculation, defective
gas valve or P.C.B.
If normal conditions are restored, the
appliance restarts without having to
be reset (1). (1) (2) (4)
95
Combustion signal
discontinuous
e system detects a discontinuous combustion signal. e appliance keeps working (1) (2)
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised Service Centre)
(2) e anomaly can only be veried in the list of errors in the “Information” menu
(3) Error displayed only on CAR
V2
(4) Error displayed only on Anomalies log
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