Immergas VICTRIX 24 TT 1E, Instruction And Warning Book

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INS

TALLER

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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 

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-temper-

ature)

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 overheat-

ing, 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)

06

Domestic hot water 

probe anomaly

The board detects an anomaly on the domestic hot water NTC probe. 

In this case the antifreeze function is also inhibited

In this case the boiler continues to produce 

domestic hot water but not with optimal 

performance (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 again, 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.

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)

24

Push button control 

panel anomaly

The board detects an anomaly on the pushbutton panel.

If normal conditions are restored the boil-

er restarts without having to be reset (1).

29

Flue probe anomaly

The board detects an anomaly on the flue gas probe

The boiler does not start (1)

31

Loss of remote control 

communication

This occurs if an incompatible remote control is connected, or if 

communication between the boiler and the remote control is lost.

Power cycle the boiler. If the Remote Con-

trol 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) mode 

cannot be activated.

36

IMG Bus communica-

tion loss

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.

The boiler does not satisfy the room heating 

requests (1).

37

Low power supply 

voltage

This 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 reset (1)

38

Loss of flame signal

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.

If normal conditions are restored the boiler 

restarts without having to be reset (1) (2)

43

Block due to loss of 

flame signal

This 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)

44

Block for exceeding the 

maximum accumulat-

ed time, close gas valve 

opening

This occurs if the gas valve remains open for longer than required 

for normal operation, without

the boiler switching on. 

Press the Reset button (1)

46

Low temperature safety 

thermostat (optional)

During normal operation, if an anomaly causes excessive overheating 

of the flow temperature in low temperature conditions, the boiler 

blocks.

In this case, after suitable cooling, it is 

possible to reset the thermostat (see relative 

instructions sheet). (1).

(1) If the block or anomaly persists, contact an authorised company (e.g. Technical After-Sales Service).

(2) The anomaly can only be verified in the list of errors in the “Information” menu