56
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
Error
Code
Anomaly signalled Cause Boiler status / Solution
45 T hig h
e boiler detects a sudden, unexpected increase in the ΔT
between the ow probe and the system return probe.
e power of the burner is limited to
prevent damage to the condensation
module and once the right ΔT is
restored, the boiler resumes regular
operation. Make sure there is water
circulating in the boiler, that the pump
is congured according to system
requirements and that the return
probe works properly. (1) (2)
47
Burner power
limitation
Should ue high temperature be detected, the boiler reduc-
es power supplied so as not to damage it.
(1)
51
CAR Wireless
communication
failure
If there is no communication between the boiler and Wire-
less version CAR, an anomaly is signalled. From this mo-
ment, it is only possible to control the system by means of
the control panel of the boiler itself.
Check operation of the Wireless CAR,
check the battery charge (refer to the
relative instructions booklet)
59
Main supply voltage
frequency block
e board detects a main supply voltage frequency anoma-
ly
e boiler does not start (1)
60
Anomaly pump
blocked
e pump is stopped due to one of the following causes:
Impeller blocked, electrical fault.
Try to unblock the pump as described
in the relative section. If normal
conditions are restored the boiler
restarts without having to be reset (1)
61 Air in circulator Air is detected inside the pump; the pump cannot work.
Vent the pump and the central heating
circuit. If normal conditions are
restored the boiler restarts without
having to be reset (1)
62
Complete calibration
required
Missing calibration is detected by the P.C.B. It may occur in
the event the P.C.B. is replaced or if the parameters are al-
tered in the air / gas section, thus requiring “complete cali-
bration”.
e boiler does not start (1)
70
Return/ow probe
exchange
In case of an incorrect boiler wiring connection the error is
detected.
e boiler does not start (1)
72
Fast calibration
required
e P.C.B. detects that some parameters have been altered,
thus requiring “fast calibration”.
e boiler does not start (1)
76
Flow and/or return
probes temperature
dri
A malfunction of one or both system return and ow
probes is detected.
e boiler does not start (1)
(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
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