Opening The Front Panel; Periodical Check - Ferroli BLUEHELIX 25/32 K 50 Instructions D'utilisation

4.3 Maintenance

Opening the front panel

To open the boiler casing:
1. Undo the screws A (see fig. 24).
2. Pull the panel B outwards and release it from the upper fastenings.
B
Before carrying out any operation inside the boiler, disconnect the power
and close the gas cock upstream
A
A
fig. 24 - Front panel opening

Periodical check

To ensure proper operation of the unit over time, have qualified personnel carry out a
yearly inspection, providing for the following checks:
• The control and safety devices (gas valve, flow meter, thermostats, etc.) must func-
tion correctly
• The fume exhaust circuit must be perfectly efficient
• The sealed chamber must be tight
• The air-fume end piece and ducts must be free of obstructions and leaks
• The burner and exchanger must be clean and free of deposits For possible cleaning
do not use chemical products or wire brushes
• The electrode must be properly positioned and free of scale
• The gas and water systems must be tight.
• The water pressure in the cold water system must be about 1 bar; otherwise, bring
it to that value
• The circulating pump must not be blocked.
• The expansion tank must be filled.
• The gas flow and pressure must correspond to that given in the respective tables
• The condensate evacuation system must be efficient with no leakage or obstruc-
tions
• The trap must be full of water.
4.4 Troubleshooting
Diagnostics
In case of operation faults or problems, the display flashes and the fault identification
code appears.
There are faults that cause permanent shutdown (marked with the letter "A"): to restore
operation just press the reset button (detail 6 - fig. 1) for 1 second or RESET on the op-
tional remote timer control if installed; if the boiler fails to start, it is necessary to firstly
eliminate the fault.
Faults marked with the letter "F" cause temporary shutdowns that are automatically reset
as soon as the value returns within the boiler's normal working range.
Table of faults
Table. 8 - List of faults
Fault code Fault
A01 No burner ignition
Flame present signal
A02
with burner off
44
EN
B
Possible cause Cure
Check the regular gas flow to the
No gas boiler and that the air has been elimi-
nated from the pipes
Check the wiring of the electrode and
Ignition/detection elec-
that it is correctly positioned and free
trode fault
of any deposits
Check the gas valve and replace it if
Faulty gas valve
necessary
Insufficient gas supply
Check the gas supply pressure
pressure
Check the trap and clean it if neces-
Trap blocked
sary
Electrode fault Check the ionisation electrode wiring
Card fault Check the card
cod. 3541H133 - Rev. 01 - 02/2018
BLUEHELIX 25/32 K 50
Fault code Fault Possible cause
Heating sensor damaged
Overtemperature pro-
A03 No water circulation in
tection intervention
the system
Air in the system
Fume extraction duct Fault F07 generated 3
A04 safety device interven- times in the last 24 hours
tion
Fault F15 generated for 1
A05 Fan protection activated
hour (consecutive)
Ionisation electrode fault Check the position of the ionisation
Flame unstable
Gas valve Offset fault
No flame after ignition
A06 stage (6 times in 4 min-
utes)
air/fume ducts obstructed
Trap blocked
The fume probe detects
F07 High fume temperature an excessive tempera-
ture
Sensor damaged
F10 Delivery sensor 1 fault Wiring shorted
Wiring disconnected
Sensor damaged
F11 Return sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F12 DHW sensor fault Wiring shorted
Wiring disconnected
Probe damaged
F13 Fume probe fault Wiring shorted
Wiring disconnected
Sensor damaged
F14 Delivery sensor 2 fault Wiring shorted
Wiring disconnected
No 230V power supply
Tachometric signal inter-
F15 Fan fault
rupted
Fan damaged
Supply voltage under
F34 Electric mains trouble
170V
F35 Faulty mains frequency Electric mains trouble
Pressure too low
Incorrect system water
Water pressure switch
F37
pressure
damaged or not con-
nected
Probe damaged or wiring
shorted
F39 External probe fault
Probe disconnected after
activating the sliding
temperature
A41 Heating sensor detached
Sensor positioning
A44 from pipe
A42 Heating sensor fault Sensor damaged
No system H
Exchanger protection
tion
F43
intervention.
Air in the system
F52 Heating sensor fault Sensor damaged
Controller fault Controller internal error
A61
ABM03 ABM03
No communication
Controller not connected
A62 between controller and
gas valve
Valve damaged
A63
F64 Controller fault Controller internal error
A65 ABM03 ABM03
F66
A23
A24
F20
Wrong card parameter
F21 Card parameter fault
setting
A26
F40
F47
Cure
Check the correct positioning and
operation of the heating sensor
Check the circulating pump
Vent the system
See fault F07
See fault F15
electrode and replace it if necessary
Check the burner
Check the Offset adjustment at mini-
mum power
Remove the obstruction from the flue,
fume extraction ducts and air inlet
and terminals
Check the trap and clean it if neces-
sary
Check the exchanger
Check the wiring or replace the sen-
sor
Check the wiring or replace the sen-
sor
Check the wiring or replace the sen-
sor
Check the wiring or replace the fume
probe
Check the wiring or replace the sen-
sor
Check the 8-pin connector wiring
Check the 8-pin connector wiring
Check the fan
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace the sen-
sor
Reconnect the external probe or dis-
able the sliding temperature
Check the correct positioning and
operation of the heating sensor
Replace the sensor
O circula-
2
Check the circulating pump
Vent the system
Replace the sensor
Check the earth connection and
replace the controller if necessary.
Connect the controller to the gas
valve
Replace the valve
Check the earth connection and
replace the controller if necessary.
Check the card parameter and mod-
ify it if necessary.