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

To close it, repeat these operations in reverse order.
B Tighten down the 4 nuts (fig. 70).
When finished check the perfect tightness of the gas circuit.
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
Faulty gas valve
A01 No burner ignition
Insufficient gas supply pres-
sure
Trap blocked
Faulty ignition transformer
(only models B 220 and B
320)
Electrode fault
Flame present signal with
A02
burner off
Card fault
Heating sensor damaged
Overtemperature protection
A03 No water circulation in the
intervention
system
Air in the system
Fume extraction duct safety Fault F07 generated 3 times
A04
device intervention in the last 24 hours
Fault F15 generated for 1
A05 Fan protection intervention
hour (consecutive)
Ionisation electrode fault
Flame unstable
No flame after ignition stage Gas valve Offset fault
A06
(6 times in 4 minutes)
air/fume ducts obstructed
Trap blocked
Flue partially obstructed or
insufficient
F07 High fume temperature
Fume sensor position
Sensor damaged
F10 Delivery sensor 1 fault Wiring shorted
Wiring disconnected
Sensor damaged
F11 Return sensor fault Wiring shorted
Wiring disconnected
EN
10
fig. 70
Cure
Check the regular flow of gas 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 neces-
sary
Check the gas supply pressure
Check the trap and clean it if necessary
Check and replace it if necessary
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
Check the position of the ionisation electrode
and replace it if necessary
Check the burner
Check the Offset adjustment at minimum
power
Remove the obstruction from flue, fume
exhaust ducts and air inlet and terminals
Check the trap and clean it if necessary
Check the efficiency of the flue, fume extrac-
tion ducts and outlet terminal
Check the correct positioning and operation
of the fume sensor
Check the wiring or replace the sensor
Check the wiring or replace the sensor
cod. 3541F572 - Rev. 01 - 09/2015
QUADRIFOGLIO B
Fault
Fault Possible cause
code
Sensor damaged
F12 DHW sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F13 Fume sensor 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
RESET button on controller
RESET button on controller
F26 on gas valve, blocked or
on gas valve, fault.
faulty.
F34 Supply voltage under 170V Electric mains trouble
F35 Faulty mains frequency Electric mains trouble
Pressure switch contact
F37 Low system pressure
open
Probe damaged or wiring
shorted
F39 External probe fault
Probe disconnected after
activating the sliding temper-
ature
Delivery sensor discon-
A41 Sensor positioning
nected from the pipe
A42 Heating sensor fault Sensor damaged
Sensor damaged
Cascade temperature sen-
F50 Wiring shorted
sor fault
Wiring disconnected
F52 Heating sensor fault Sensor damaged
A61 Faulty controller Controller ABM03
Controller not connected
No communication between
A62
controller and gas valve
Valve damaged
A63
A64
Faulty controller Controller ABM03
A65
F66

5. TECHNICAL DATA AND CHARACTERISTICS

Key of figures cap. 5
7 Gas inlet
10 System delivery
16 Fan
32 Heating circulating pump (not supplied)
36 Automatic air vent
44 Gas valve
72 Room thermostat (not supplied)
72b Second room thermostat (not supplied)
81 Ignition electrode
82 Detection electrode
95 3-way valve - 2 wires (not supplied)
A = Heating phase
B = Neutral
98 Switch
114 Water pressure switch
130 DHW circulating pump (not supplied)
138 External probe (not supplied)
139 Remote timer control (not supplied)
154 Condensate drain pipe
155 Hot water tank temperature probe (not supplied)
186 Return sensor
188 Ignition/Ionisation electrode
191 Fume temperature sensor
220 Ignition card
256 Modulating heating circulating pump signal
275 Heating system drain cock
278 Double sensor (Safety + Heating)
298 Cascade temperature sensor (not supplied)
299 Input 0-10 Vdc
300 Burner lit contact (voltage-free contact)
301 Fault contact (voltage-free contact)
302 Remote reset input (230 Volt)
306
Heating system circulating pump (not supplied)
307
Heating system second circulating pump (not supplied)
321 Low temperature return
346
High temperature return
348
3-way valve - 3 wires (not supplied)
A = Heating phase
B = Neutral
C = DHW phase
357 Faulty contact (230 Vac)
361 Cascade connection of next module
362 Cascade connection of previous module
363

MODBUS communication

Cure
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the sensor
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 necessary.
Check the electrical system
Check the electrical system
Check the system water pressure
Check the wiring or replace the sensor
Reconnect the external probe or disable the
sliding temperature
Check the correct positioning and operation
of the heating sensor
Replace the sensor
Check the wiring or replace the sensor
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.