Fault And Anomaly Signals - Immergas INTEC 30 System External Installation Instructions Manual

• Solar functioning mode ( ). This function
is activated automatically if the boiler detects
a probe on the DHW inlet (optional) or if the
"Solar ignition delay" parameter is more than
0 seconds.
During a withdrawal, if the outlet water is
hot enough, the boiler does not switch on,
the DHW withdrawal symbol (
on the display along with the flashing solar
function symbol ( ).
When the water supplied by the solar system
is at a temperature lower than that at which
the boiler is set, the boiler switches on. At this
point, the solar function symbol will stay on
without flashing.
• Functioning with optional external probe
( ). In the case of a system with optional
external probe, the boiler flow temperature
for room central heating is managed by the
external probe depending on the external
temperature measured (Par. 1.6). The flow
temperature can be modified by selecting the
functioning curve via the selector switch (6)
(or on the CAR control panel, if connected
V2
to the boiler) selecting a value from "0 to 9".
Error
Anomaly signalled
Code
01 No ignition block
Safety thermostat
02
block (overheating)
Flue safety thermo-
03
stat block
Contacts resistance
04
block
05 Flow probe anomaly The board detects an anomaly on the flow NTC probe.
Domestic hot water
06
probe anomaly
Ma x i mu m N ° of
08
reset
Insufficient system
10
pressure
15 Configuration error
16 Fan anomaly
Parasite flame block
20
Return probe anom-
23
aly
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised Technical After-Sales Service).
With external probe present, the relative
symbol (18) will appear on the display. In the
central heating phase, if the temperature of the
water contained in the system is sufficient to
heat the radiators, the boiler can only function
with the activation of the pump.
• "Stand-by" mode. Press button (1) in
succession until the (
) appears
The boiler remains inactive from this moment
and the anti-freeze function, pump anti-block
function and 3-way and signalling of any
anomalies is guaranteed.
N.B.: in these conditions the boiler is
considered still powered.
• "Off " mode. By holding the button (1) down
for 8 seconds, the display switches-off and the
boiler is off completely. The safety functions are
not guaranteed in this mode.
N.B.: in these conditions the boiler is considered
still live even if there are no functions active.
• "Automatic vent" mode. Every time power is
supplied to the boiler. the system automatic
vent function is activated (duration 8 minutes).
This function is displayed via countdown
signalled by the indicator (14). During this
period the DHW and CH functions are not
active.
The "automatic vent" can be annulled by
pressing the "reset" button (3).
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 neces-
sary 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 overheating,
the boiler blocks
The P.C.B. detects an anomaly on the gas valve supply. Check the connec-
tion. (the anomaly is detected and displayed only in the event of a request).
The board detects an anomaly on the domestic hot water NTC probe.
Number of allowed resets that have already performed.
Water pressure inside the central heating circuit that is sufficient to guar-
antee 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 return NTC probe
• Display functioning. The display lights up
during the use of the control panel, after 15
seconds inactivity, the brightness drops until
just the active symbols are displayed. The
lighting mode can be varied via parameter t3
in the circuit board customisation menu.
) symbol appears.

2.5 FAULT AND ANOMALY SIGNALS.

The INTEC 12-30 SYSTEM EXTERNAL boiler
signals any anomalies using a code shown on
the boiler display (14) according to the follow-
ing table.
On the CAR
by means of the same numeric code represented
according to the following example (e.g. CAR
= Exx).
12
, the error code will be displayed
V2
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. Moreover, the antifreeze
function (1) is restrained.
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.
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).
The boiler does not start (1).
V2