46
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
Error
Code
Anomaly signalled Cause Boiler status / Solution
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)
77
Combustion control
fault
Out of range current is detected on the gas valve. e boiler does not start (1)
78
Combustion control
fault
High current on the gas valve is detected. e boiler does not start (1)
79
Combustion control
fault
Reduced current on the gas valve is detected. e boiler does not start (1)
80
Block - gas valve
driver issue
is occurs in the event of malfunctions of the P.C.B. that
controls the valve.
Faulty valve
Press the Reset button (1)
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
boiler restarts without having to be
reset (1) (2)
87
Block - gas valve
control
A malfunction of one of the components that controls the
gas valve has been detected.
e boiler 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 boiler 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 boiler keeps working (1) (2)
90
Combustion signal
beyond limit
e combustion signal is beyond the adjustment range re-
quired for an extended period of time.
e boiler keeps working (1) (2)
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 boiler 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
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