26
INS
TALLER
US
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MAINTEN
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CE TECHNI
CI
AN
Error
Code
Anomaly signalled
Cause
Boiler status / Solution
0E2
Parasite flame 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.
(2) (1)
0A13
Maximum N° of reset
Number of allowed resets that have already performed.
Attention:
it is possible to reset the anom-
aly up to 5 consecutive times within 15
minutes. (1) By switching the appliance
on and off the 5 attempts are re-acquired.
0E25
P.C.B. error
An error is detected on the P.C.B. and the boiler does not start up
(2) (1)
0E32
DHW NTC probe in
short circuit
The board detects a short circuit on the DHW NTC probe
(2) (1)
0E33
DHW NTC probe
outside the operating
range
The board detects an open contact on the DHW NTC probe.
(2) (1)
0E34
Low power supply
voltage
This occurs when the power supply voltage is lower than the allowed
limits for the correct boiler operation.
(2) (1)
0E37
Pressure or flow rate
insufficient system
If the system pressure is too low the boiler switches off.
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)
0E45
Flue NTC probe in
short circuit
The board detects a short circuit on the flue NTC probe.
(2) (1)
0E46
Flue NTC probe
outside the operating
range
The board detects an open contact on the flue NTC probe.
(2) (1)
0E81
Flow and return NTC
probe temperature
detection incorrect (in
stand-by)
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
(2) (1)
0E98
Simple cascade com-
munication anomaly
Occurs if the communication between the display boards breaks down
Check the bus’ electric connection.
Perform the Auto detection.
Check whether the software versions
match.
(2) (1)
0E99
Internal communica-
tion anomaly
A communication error has been detected between the display board
and the boiler's P.C.B.. In the event of simple cascade, even in the case
of a communication error between the display boards.
Check the boiler’s wiring.
Check the bus’ electric connection.
Perform the Auto detection in the event
of simple cascade installation.
(2) (1)
(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.
Error
Code
Anomaly signalled
Cause
Boiler status / Solution
FE94
Display board anomaly
An error is detected on the display's P.C.B..
(2) (1)
FE95
Shared common flow
probe short-circuited
or out of range
The board detects an incorrect value on the flow NTC probe or “P38”
parameter not set correctly..
(2) (1)
FE96
External probe
anomaly
An anomaly is detected on the external probe.
Check the boiler configuration, check
the external probe (2) (1)
FE97
Configuration error
P.C.B. configuration error.
This may happen when the P.C.B. is changed It may occur also in the
event of replacement of the electronic boards with an incorrect model..
Check the configuration parameters.
Perform the Auto detection.
(2) (1)
(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.
