Technical Data And Characteristics; Modbus Communication - Ferroli QUADRIFOGLIO B Instrucciones De Uso, Instalación Y Mantenimiento

QUADRIFOGLIO B
4.4 Troubleshooting
Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In the case of a boiler
fault, the display will light up, indicating the fault code and, in case of connection in cas-
cade, the number of the module.
There are faults that cause permanent shutdown (marked by the symbol OK to reset): to
restore operation, just press the OK button for 1 second or RESET on the remote timer
control (optional) if installed; if the boiler fails to start, the fault must be eliminated first.
Other faults cause temporary shutdowns which are automatically reset as soon as the
value returns within the boiler's normal working range.
Table of faults
Table. 4 - List of faults
Fault
Fault Possible cause
code
No gas
Ignition/detection electrode fault
A01 No burner ignition
Faulty gas valve
Insufficient gas supply pressure
Trap blocked
Faulty ignition transformer (only models B
220 and B 320)
Electrode fault
Flame present sig-
A02
nal with burner off
Card fault
Heating sensor damaged
Overtemperature
A03 protection interven-
No water circulation in the system
tion
Air in the system
Fume extraction Fault F07 generated 3 times in the last 24
A04 duct safety device hours
intervention
Fan protection acti- Fault F15 generated for 1 hour (consecu-
A05
vated tive)
Ionization electrode fault
Flame unstable
No flame after igni- Gas valve Offset fault
A06 tion stage (6 times
in 4 minutes)
air/fume ducts obstructed
Trap blocked
Flue partially obstructed or insufficient
High fume temper-
F07
ature
Fume sensor position
Sensor damaged
Delivery sensor 1
F10 Wiring shorted
fault
Wiring disconnected
Sensor damaged
F11 Return sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F12 DHW sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F13 Fume sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
Delivery sensor 2
F14 Wiring shorted
fault
Wiring disconnected
No 230V power supply
F15 Fan fault Tachometric signal interrupted
Fan damaged
RESET button on
RESET button on controller fitted on gas
F26 controller on gas
valve blocked or faulty.
valve, fault.
Supply voltage
F34 Electric mains trouble
under 170V
Faulty mains fre-
F35 Electric mains trouble
quency
Pressure switch
F37 Low system pressure
contact open
Cure
Check the regular gas flow to the boiler
and that the air has been eliminated
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 necessary
Check and replace it if necessary

5. TECHNICAL DATA AND CHARACTERISTICS

Check the ionization electrode wiring
Key of figures cap. 5
Check the card
7
Check the correct positioning and oper-
10
ation of the heating sensor
16
Check the circulating pump 32
36
Vent the system
44
See fault F07
72
72b
81
82
See fault F15
95
Check the position of the ionization
electrode and replace it if necessary
Check the burner
98
Check the Offset adjustment at mini-
114
mum power
130
138
Remove the obstruction from the flue,
139
fume extraction ducts and air inlet and
terminals 154
155
Check the trap and clean it if necessary
186
Check the efficiency of the flue, fume
188
extraction ducts and outlet terminal
191
Check the correct positioning and oper-
220
ation of the fume sensor
256
275
278
Check the wiring or replace the sensor
298
299
300
301
Check the wiring or replace the sensor
302
306
307
321
Check the wiring or replace the sensor
346
348
Check the wiring or replace the sensor
357
Check the wiring or replace the sensor 361
362
363
Check the 3-pin connector wiring
Check the 5-pin connector wiring
Check the fan
Check the RESET button and replace
the controller on the gas valve if neces-
sary.
Check the electrical system
Check the electrical system
Check the system water pressure
cod. 3541F574 - Rev. 00 - 09/2017
Fault
Fault Possible cause
code
Probe damaged or wiring shorted
F39 External probe fault
Probe disconnected after activating the
sliding temperature
Delivery sensor disconnected from the
A41 Sensor positioning
pipe
Heating sensor
A42 Sensor damaged
fault
Sensor damaged
Cascade tempera-
F50 Wiring shorted
ture sensor fault
Wiring disconnected
Heating sensor
F52 Sensor damaged
fault
A61 Controller fault Controller internal error
No communication Controller not connected
A62 between controller
Valve damaged
and gas valve
A63
A64
Controller fault Controller internal error
A65
F66
No communication
F99 between controller Wiring disconnected
and display
Gas inlet
System delivery
Fan
Heating circulating pump (not supplied)
Automatic air vent
Gas valve
Room thermostat (not supplied)
Second room thermostat (not supplied)
Ignition electrode
Detection electrode
3-way valve - 2 wires (not supplied)
A = Heating phase
B = Neutral
Switch
Water pressure switch
DHW circulating pump (not supplied)
External probe (not supplied)
Remote timer control (not supplied)
Condensate drain pipe
Hot water tank temperature probe (not supplied)
Return sensor
Ignition/Ionisation electrode
Fume temperature sensor
Ignition card
Modulating heating circulating pump signal
Heating system drain cock
Double sensor (Safety + Heating)
Cascade temperature sensor (not supplied)
Input 0-10 Vdc
Burner lit contact (voltage-free contact)
Fault contact (voltage-free contact)
Remote reset input (230 Volt)
Heating system circulating pump (not supplied)
Heating system second circulating pump (not supplied)
Low temperature return
High temperature return
3-way valve - 3 wires (not supplied)
A = Heating phase
B = Neutral
C = DHW phase
Faulty contact (230 Vac)
Cascade connection of next module
Cascade connection of previous module

MODBUS communication

Cure
Check the wiring or replace the sensor
Reconnect the external probe or disable
the sliding temperature
Check the correct positioning and oper-
ation of the heating sensor
Replace the sensor
Check the wiring or replace the sensor
Replace the sensor
Check the ground connection and
replace the controller if necessary.
Connect the controller to the gas valve
Replace the valve
Check the ground connection and
replace the controller if necessary
Check the wiring of the 6 wires between
controller and display
81
EN