Troubleshooting - Ferroli BLUEHELIX PRO S 25C Instrucciones De Uso

4.3 Maintenance
Opening the front panel
To open the boiler casing:
1. Partially 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
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. 25).
OK
fig. 25 - Correct position of front panel
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.
EN
42
EN
40
B
A
NO
cod. 3541F262 - Rev. 00 - 08/2015
cod. 3541F260 -
BLUEHELIX PRO S 25C
BLUEHELIX PRO S 25C

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
Overtemperature pro-
A03
tection intervention
Fume extraction duct
A04 safety device interven-
tion
A05 Fan protection activated
No flame after ignition
A06 stage (6 times in 4 min-
utes)
F07 High fume temperature
F10 Delivery sensor 1 fault
F11
Return sensor fault
F12 DHW sensor fault
F13 Fume probe fault
F14
Delivery sensor 2 fault
F15 Fan fault
Supply voltage under
F34
170V
F35
Faulty mains frequency Electric mains trouble
Incorrect system water
F37
pressure
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
Check the correct positioning and
Heating sensor damaged
operation of the heating sensor
No water circulation in
Check the circulating pump
the system
Air in the system Vent the system
Fault F07 generated 3 See fault F07
times in the last 24 hours
Fault F15 generated for 1
See fault F15
hour (consecutive)
Ionisation electrode fault Check the position of the ionisation
electrode and replace it if necessary
Flame unstable Check the burner
Gas valve Offset fault Check the Offset adjustment at mini-
mum power
Remove the obstruction from the flue,
air/fume ducts obstructed fume extraction ducts and air inlet
and terminals
Check the trap and clean it if neces-
Trap blocked
sary
The fume probe detects
an excessive tempera- Check the exchanger
ture
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Probe damaged
Check the wiring or replace the fume
Wiring shorted
probe
Wiring disconnected
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
No 230V power supply Check the 3-pin connector wiring
Tachometric signal inter-
Check the 3-pin connector wiring
rupted
Fan damaged Check the fan
Electric mains trouble Check the electrical system
Check the electrical system
Pressure too low Fill the system
Water pressure switch
damaged or not con- Check the sensor
nected