26
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
2.6 TROUBLESHOOTING.
The Hercules Condensing ABT 32 3 ErP boiler
signals any anomalies by the flashing symbol (5)
along with the “ERRxx” indication on the indica-
tor (6) where “xx” corresponds to the error code
described in the following table. On the remote
control, the error code will be displayed by means
of the same numeric code represented according
to the following example (e.g. CAR
V2
= Exx, Super
CAR = ERR>xx).
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 neces-
sary to eliminate the block.
Press the Reset button (1)
02
Safety thermostat
block (overheat-
ing), flame control
or fumes thermo-
fuse anomaly
During normal operation, if a fault causes excessive overheating internally,
the boiler goes into overheating block.
Press the Reset button (1)
03
Flue safety thermo-
stat block
During normal operation, if a fault causes excessive flue gas overheating,
the boiler blocks
Press the Reset abutton (1)
04
Contacts resistance
block
Safety thermostat fault (overheating) or flame control anomaly.
Press the Reset abutton (1)
05
Flow probe
anomaly
The board detects an anomaly on the flow NTC probe.
The boiler does not start (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 the 5 attempts are re-acquired.
10
Insufficient system
pressure
Water pressure inside the central heating circuit that is sufficient to guar-
antee 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.
12
Storage tank probe
anomaly
The board detects an anomaly on the storage tank probe.
The boiler cannot produce domestic hot
water.
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 (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)
22
General alarm
This type of error is displayed on the CAR
V2
or Super CAR remote control
in the event of faults or anomalies of the circuit boards or components not
directly connected to boiler management: anomaly on the zones control
unit, substation or solar circuit.
(1)
23
Return probe
anomaly
The board detects an anomaly on the return NTC probe
The boiler does not start (1)
24
Push button control
panel anomaly
The board detects an anomaly on the pushbutton panel
If normal conditions are restored the
boiler restarts without having to be reset
(1)
25
Block due to flue
gas temperature
gradient interven-
tion
If the board detects a rapid increase in flue gas temperature probably due
to a blocked circulating pump or lack of water in the heat exchanger, the
boiler shuts down due to the flue gas temperature gradient trip.
Press the Reset button (1)
27
Insufficient circula-
tion
This occurs if there is overheating in the boiler due to insufficient water
circulating in the primary circuit; the causes can be:
- low system circulation; check that no shut-off devices are closed on the
heating circuit and that the system is free of air (deaerated);
- pump blocked; free the pump.
Press the Reset button (1).
29
Flue probe anomaly
If the board detects an anomaly on the flue gas probe the boiler will not
start
(1)
(1) If the shutdown or fault persists, contact an authorised firm (e.g. Authorised Technical After-Sales Service).
