Immergas Victrix Pro 80 2ErP Instruction And Warning Book page 25

Error
Anomaly signalled
Code
No ignition block
0A1
Parasite flame block
0A2
0A3 Overheating block
0A4 Air pressure switch
Fan signal anomaly
0A5
Flue temperature
0A7
anomaly
Flame circuit anomaly
0A8
Gas valve electric
0A9
circuit anomaly
Flow and return NTC
probe temperature
0A15
detection incorrect (in
stand-by)
Poor thermal flow
0A16
NTC probe contact
Poor thermal return
0A17
NTC probe contact
Flow and return NTC
0A18 probe temperature
detection incorrect
P.C.B. error
0A21
Flow NTC probe in
0A30
short circuit
Flow NTC probe
0A31 outside the operating
range
Insufficient system
0A37
pressure
Return NTC probe in
0A43
short circuit
Return NTC probe
outside the operating
0A44
range
Flow and return NTC
0A80
probe connection error
(1) If the block or anomaly persists, contact an authorised company (e.g. Immergas Technical After-Sales Service).
(2) If normal operating conditions are restored, the boiler re-starts without having to be reset.
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.
This occurs during the power-on phase in the event of a leak on the
detection circuit or anomaly in the flame control unit.
During normal operation, if a fault causes excessive overheating inter-
nally, the boiler goes into overheating block.
During the heat request phase, the board detects the stuck/open
contacts of the air pressure switch.
This occurs if the fan speed is incorrect.
If the boiler fails, the flue circuit will provide an excessively high
temperature reading and the boiler will switch off.
During the ignition phase an anomaly was detected on the electronic
flame control circuit and the boiler switches off.
The board detects an anomaly in the gas valve circuit. Before replacing
the board, verify the absence of short circuits on gas valve and related
connector.
With the boiler in stand-by, the board detects an anomalous difference
between the NTC probe flow and return temperatures. The error may
be caused by a failure in one of the two probes
During boiler operation the board does not detect a change in the flow
NTC probe temperature. The error may be caused by a poor thermal
probe contact or a system with excessive thermal inertia.
During boiler operation the board does not detect a change in the return
NTC probe temperature. The error may be caused by a poor thermal
probe contact or a system with excessive thermal inertia.
If the board detects a sudden drop in temperature on one of the two
NTC probes (flow and return), it will report an anomaly. This may be
caused by the failure of one of the two probes
An error is detected on the P.C.B. and the boiler does not start up
The board detects a short circuit on the flow NTC probe.
The board detects an open contact on the flow NTC probe.
If the system pressure is too low the boiler switches off.
The board detects a short circuit on the return NTC probe
The board detects an open contact on the return NTC probe.
If the electrical connection between the two NTC probes is switched
around, the board will detect the anomaly (it may be necessary to wait
3 minutes for the error to be detected).
25
Boiler status / Solution
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)
Check on the boiler pressure gauge (1)
that the system pressure is between 1÷1.2
bar and restore the correct pressure if
necessary.
(2) (1)
Press the Reset button (1)
Press the Reset button (1)
Press the Reset button (1)