Opening The Front Panel; Periodical Check - Ferroli BLUEHELIX TECH 18 A Mode D'emploi

4.3 Maintenance

Opening the front panel

To open the boiler casing:
1. Partially undo the screws A (see fig. 25).
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
A
fig. 25 - Front panel opening
B
On this unit, the casing also acts as a sealed chamber. After any opera-
tion involving opening the boiler, carefully check the correct refitting of
the front panel and its seal.
Proceed in reverse order to refit the front panel. Make sure it is correctly hooked to the
upper fastenings and is correctly positioned at the sides. When tightened, the head of
screw "A" must not be below the lower fold (see fig. 26).
OK
fig. 26 - Correct position of front panel

Periodical check

To ensure correct operation of the unit over time, have qualified personnel carry out a
yearly check, providing for the following:
• 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 terminal and ducts must be free of obstructions and leaks
• The burner and exchanger must be clean and free of deposits. Do not use chemical
products or wire brushes to clean.
• The electrode must be properly positioned and free of scale.
• The gas and water systems must be tight.
• The water pressure with system cold must be approx. 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 match that given in the respective tables.
• The condensate removal system must be efficient, with no leaks or obstructions.
• The trap must be full of water.
40 EN
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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
B
NO
cod. 3541C617 - Rev. 02 - 07/2014
BLUEHELIX TECH A
Fault code Fault Possible cause
No gas
Ignition/detection elec-
trode fault
A01 No burner ignition
Faulty gas valve
Insufficient gas supply
pressure
Trap blocked
Electrode fault
Flame present signal
A02
with burner off
Card fault
Heating sensor damaged
Overtemperature protec-
A03 No water circulation in
tion activation
the system
Air in the system
Fume extraction duct Fault F07 generated 3
A04
safety device activation times in the last 24 hours
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 tem-
perature
Delivery sensor discon-
A41 Sensor positioning
nected from pipe
Cure
Check the regular gas flow to the
boiler and that the air has been elimi-
nated from the pipes
Check the wiring of the electrode and
that it is correctly positioned and free
of any deposits
Check the gas valve and replace it if
necessary
Check the gas supply pressure
Check the trap and clean it if neces-
sary
Check the ionisation electrode wiring
Check the card
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 disa-
ble the sliding temperature
Check the correct positioning and
operation of the heating sensor