42
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2.5 TROUBLESHOOTING.
The Victrix EXA 24 X 1 ErP boiler reports any anomalies using a code shown on the boiler display (14), listed in the table below:
On the remote control, the error code will be displayed by means of the same numeric code represented according to the following
example (e.g. CAR
V2
= Exx).
Error
Code
Anomaly
signalled
Cause
Boiler status / Solution
01
No ignition block
In the event of request of room central heating or domestic hot
water production, the boiler does not switch on within the preset
time. Upon appliance commissioning or after extended downtime,
it may be necessary to eliminate the block.
Press the Reset button (1).
02
Safety thermostat block
(over-temperature)
During normal operation, if a fault causes excessive overheating
internally, the boiler goes into overheating block.
Press the Reset button (1).
03
Flue safety
thermostat block
During normal operation, if a fault causes excessive flue gas over-
heating, the boiler blocks.
Press the Reset button (1).
04
Contacts resistance
block
The P.C.B. detects an anomaly on the gas valve supply. Check the
connection. (the anomaly is detected and displayed only in the
event of a request).
Press the Reset button (1).
05
Flow probe anomaly
The board detects an anomaly on the flow NTC probe.
The boiler does not start (1).
08
Maximum N° of reset
Number of allowed resets that have already performed.
Attention:
the anomaly can be reset 5 times
consecutively, after which the function in
inhibited for at least one hour. One attempt
is gained every hour for a maximum of 5
attempts. By switching the appliance on
and off the 5 attempts are re-acquired.
10
Insufficient system
pressure
Water pressure inside the central heating circuit that is sufficient to
guarantee the correct operation of the boiler is not detected.
Check on the boiler pressure gauge (1)
that the system pressure is between 1÷1.2
bar and restore the correct pressure if
necessary.
11
Air/flue gas pressure
switch fault
Air/flue gas pressure switch set point not reached with fan powered. The boiler does not start (1).
12
Storage tank probe
anomaly (optional)
If the board detects an anomaly on the boiler probe, the boiler
cannot produce domestic hot water
(when the boiler is connected to
an external storage tank unit)
and signals an anomaly.
The boiler does not satisfy the DHW pro-
duction requests (1).
13
Air/flue gas flow-meter
out of range
With fan stopped, the air/flue gas controller reads a signal too high
(pressure switch contacts stuck).
The boiler does not start (1).
15
Configuration error
If the board detects an anomaly or incongruity on the electric wiring,
the boiler will not start.
If normal conditions are restored the boiler
restarts without having to be reset. Check
that the boiler is configured correctly (1).
16
Fan anomaly
This occurs if the fan has a mechanical or electrical fault.
Press the Reset button (1).
20
Parasite flame block
This occurs in the event of a leak on the detection circuit or anomaly
in the flame control unit.
Press the Reset button (1).
23
Return probe anomaly
The board detects an anomaly on the return NTC probe.
The boiler does not start (1).
24
Push button control
panel anomaly
The board detects an anomaly on the pushbutton panel.
If normal conditions are restored the boiler
restarts without having to be reset (1).
25
Block due to flue gas
temperature gradient
intervention
If the board detects a rapid increase in flue gas temperature prob-
ably due to a blocked circulating pump or lack of water in the heat
exchanger, the boiler shuts down due to the flue gas temperature
gradient trip.
Press the Reset button (1).
27
Insufficient circulation
This occurs if there is overheating in the boiler due to insufficient
water circulating in the primary circuit; the causes can be:
- low system circulation; check that no shut-off devices are closed
on the heating circuit and that the system is free of air (deaerated);
- pump blocked; free the pump.
Press the Reset button (1).
29
Flue probe anomaly
The board detects an anomaly on the flue gas probe.
The boiler does not start (1).
(1) If the shutdown or fault persists, contact an authorised company.
