78
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
Error
Code
Anomaly signalled Cause Boiler status / Solution
31
Loss of remote control
communication
is occurs if an incompatible remote control is connected,
or if communication between the boiler and the remote
control is lost.
Disconnect and reconnect the power
to the boiler. If the Remote Control is
still not detected on re-starting, the
boiler will switch to local operating
mode, i.e. using the controls on the
control panel. In this case the "Central
Heating" (1) function cannot be
activated.
37
Low power supply
voltage
is occurs when the power supply voltage is lower than the
allowed limits for the correct boiler operation.
If normal conditions are restored the
boiler restarts without having to be
rese t (1).
38 Loss of ame signal
is occurs when the boiler is ignited correctly and the
burner ame switches o unexpectedly; a new attempt at
ignition is performed and if normal conditions are re-
stored, the boiler does not have to be reset.
If normal conditions are restored the
boiler restarts without having to be
reset (1) (2).
43
Block due to loss of
ame signal
is occurs if the ''Flame signal loss'' error occurs many
times in a row within a preset period (38).
Press the Reset button, before
restarting, the boiler will run a
post-ventilation cycle (1).
45 T high
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).
(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