Immergas VICTRIX EXA 24 X 1 ERP Instruction Booklet And Warning page 43

Error Anomaly
Code signalled
Loss of remote control
31
communication
IMG Bus communica-
36
tion loss
Low power supply
37
voltage
38 Loss of ame signal
Block due to loss of
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continuous ame signal
Block for exceeding the
maximum accumulated
44
time, close gas valve
opening
ΔT high
45
Low temperature safety
46
thermostat (optional)
Burner power limita-
47
tion
High temperature
49
block on return probe
(1) If the shutdown or fault persists, contact an authorised company.
This occurs if an incompatible remote control is connected, or if
communication between the boiler and the remote control is lost.
Communication between the various components is interrupted
due to an anomaly on the boiler control unit, on the zone control
unit or on the IMG Bus.
This occurs when the power supply voltage is lower than the allowed
limits for the correct boiler operation.
This occurs when the boiler is ignited correctly and the burner flame
goes out unexpectedly; a new ignition attempt is performed and if
normal conditions are restored, the boiler does not have to be reset
(this anomaly can only be checked in the list of errors present in
the "Information" menu).
This occurs if the Flame signal loss error occurs many times in a
row within a preset period (38).
This occurs if the gas valve remains open for longer than required
for normal operation, without the boiler switching on.
If the board detects a sudden and unexpected rise in ΔT between
the system flow probe and return probe, the boiler limits the burner
output to prevent damaging the condensing module; when the cor-
rect ΔT has been restored, the boiler returns to normal operation.
During normal operation, if an anomaly causes excessive over-
heating of the flow temperature in low temperature conditions, the
boiler blocks.
Should flue high temperature be detected, the boiler reduces power
supplied so as not to damage it.
This occurs when the heat exchanger return circuit reaches a tem-
perature that is too high.
Cause Boiler status / Solution
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" function cannot
be activated. (1).
The boiler does not satisfy the room heat-
ing requests (1).
If normal conditions are restored the boiler
restarts without having to be reset (1).
If normal conditions are restored the boiler
restarts without having to be reset (1).
Press the Reset button, before restarting,
the boiler will run a post-ventilation
cycle. (1).
Press the Reset button (1).
Make sure there is water circulating in the
boiler, that the pump is configured accord-
ing to system requirements and that the
return probe works properly (1).
In this case, after suitable cooling, it is
possible to reset the thermostat (see relative
instructions sheet) (1).
(1).
Make sure that water circulates properly
in the boiler and that the three-way valve
works properly. Press the Reset button (C)
to eliminate it (1).
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