Ferroli ECONCEPT TECH 25 C Instructions D'utilisation, D'installation Et D'entretien page 45

ECONCEPT TECH 25 C - 35 C
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 activation
Fume extraction duct
A04
safety device activation
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 Exchanger 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 exchanger probe
detects an excessive
Check the exchanger
temperature for over 2
minutes
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
Wiring shorted
exchanger 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 5-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
cod. 3540R812 - Rev. 07 - 02/2015
Fault code Fault Possible cause
Probe damaged or wiring
shorted
F39 External probe fault
Probe disconnected after
activating the sliding
temperature
Delivery sensor discon-
A41 Sensor positioning
nected from the pipe
F42 Heating sensor fault Sensor damaged
Cure
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
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EN