Troubleshooting - Immergas VICTRIX 24 TT 1E Instruction And Warning Book

2.5 TROUBLESHOOTING.

The Victrix TT boiler reports any anomalies via a
code shown on the boiler display (14) according
to the following table:
Error
Anomaly signalled
Code
No ignition block
01
Safety thermostat
block (over-temper-
02
ature)
Flue safety thermostat
03
block
Contacts resistance
04
block
05 Flow probe anomaly
Domestic hot water
06
probe anomaly
08 Maximum N° of reset
Insufficient system
10
pressure
Configuration error
15
Fan anomaly
16
20 Parasite flame block
Push button control
24
panel anomaly
29 Flue probe anomaly
Loss of communication
31
with the CAR
V2
IMG Bus communica-
36
tion loss
Low power supply
37
voltage
Loss of flame signal
38
Block due to loss of
43
flame signal
Block for exceeding the
maximum accumulat-
44
ed time, close gas valve
opening
Low temperature safety
46
thermostat (optional)
Burner power limi-
47
tation
(1) If the block or anomaly persists, contact an authorised company (e.g. Immergas Technical After-Sales Service).
(2) The anomaly can only be verified in the list of errors in the "Information" menu
Cause
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.
During normal operation, if a fault causes excessive overheating
internally, the boiler goes into overheating block.
During normal operation, if a fault causes excessive flue gas overheat-
ing, the boiler blocks
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).
The board detects an anomaly on the flow NTC probe.
The board detects an anomaly on the domestic hot water NTC probe.
In this case the antifreeze function is also inhibited
Number of allowed resets that have already performed.
Water pressure inside the central heating circuit that is sufficient to
guarantee the correct operation of the boiler is not detected.
If the board detects an anomaly or incongruity on the electric wiring,
the boiler will not start.
This occurs if the fan has a mechanical or electrical fault.
This occurs in the event of a leak on the detection circuit or anomaly
in the flame control unit.
The board detects an anomaly on the pushbutton panel.
The board detects an anomaly on the flue gas probe
This occurs 1 minute after communication is lost between the boiler
and the CAR .
V2
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
switches off unexpectedly; a new attempt at ignition is performed and
if normal conditions are restored, the boiler does not have to be reset.
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.
During normal operation, if an anomaly causes excessive overheating
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.
23
Boiler status / Solution
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
The boiler does not start (1)
The boiler does not start (1)
In this case the boiler continues to produce
domestic hot water but not with optimal
performance (1)
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 again, the 5 attempts are re-acquired.
Check on the boiler pressure gauge (1) that
the system pressure is between 1÷1.2 bar
and restore the correct pressure if necessary.
If normal conditions are restored the boiler
restarts without having to be reset. Check
that the boiler is configured correctly (1)
Press the Reset button (1)
Press the Reset button (1)
If normal conditions are restored the boil-
er restarts without having to be reset (1).
The boiler does not start (1)
Switch the boiler on and off again (1).
The boiler does not satisfy the room heating
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) (2)
Press the Reset button, before restarting,
the boiler will run a post-ventilation
cycle. (1)
Press the Reset button (1)
In this case, after suitable cooling, it is
possible to reset the thermostat (see relative
instructions sheet). (1).
(1)