Ferroli PEGASUS D K 130 Instructions D'utilisation, D'installation Et D'entretien page 37

PEGASUS D K 130
4.4 Troubleshooting
Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault, the
display will flash together with the fault symbol (detail 22 - fig. 1) indicating the fault code.
There are faults that cause permanent shutdown (marked with the letter "A"): to restore
operation, press the RESET button (detail 8 - 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. 2 - Fault list
Fault
Fault Possible cause
code
No gas
Ignition/detection electrode fault
A01 No burner ignition
Faulty gas valve
Ignition power too low
Electrode fault
Flame present signal with
A02
burner off
Card fault
Heating sensor damaged
Overtemperature protection
A03 No water circulation
activation
in the system
Air in the system
Fume thermostat contact open
Fume thermostat activated
(after activation of the fume Wiring disconnected
F04
thermostat, boiler operation
Flue obstructed or not
is prevented for 20 minutes)
correctly sized
Low pressure in the gas
system
No flame after the ignition
A06
stage
Burner minimum pressure
setting
Sensor damaged
F10 Delivery sensor 1 fault Wiring shorted
Wiring disconnected
Sensor damaged
F11 DHW sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F14 Delivery sensor 2 fault Wiring shorted
Wiring disconnected
F34 Supply voltage under 170V. Electric mains trouble
F35 Faulty mains frequency Electric mains trouble
System empty
Incorrect system water
F37
Water pressure switch damaged
pressure
or not connected
Probe damaged or wiring
shorted
F39 External probe fault
Probe disconnected after activat-
ing the sliding temperature
Incorrect system water pres-
F40 Pressure too high
sure
Delivery sensor detached from
A41 Sensor positioning
the pipe
F42 Heating sensor fault Sensor damaged
System water pressure
F47 Wiring disconnected
sensor fault
Gas valve wiring fault
A48 Gas valve fault Faulty gas valve
Card fault
Gas valve wiring fault
A49 Gas valve fault Faulty gas valve
Card fault
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
Adjust the ignition power
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
Check the thermostat
Check the wiring
Replace the flue
Check the gas pressure
Check the pressures
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace the sensor
Reconnect the external probe or disable
the sliding temperature
Check the system
Check the safety valve
Check the expansion tank
Check the correct positioning
and operation of the heating sensor
Replace the sensor
Check the wiring
Check the wiring
Replace the gas valve
Replace the card
Check the wiring
Replace the gas valve
Replace the card
cod. 3540T644 - Rev. 0 -
5. TECHNICAL DATA AND CHARACTERISTICS
5.1 Dimensions, connections and main components
500
40
44
255
273
74
180
233
950
167
14
11
10
278
56
209
192
210
fig. 25 - Dimensions and main components
Model
PEGASUS D 30 K 130
PEGASUS D 40 K 130
7 Gas inlet - 1/2"
10 System delivery - "
11 System return - "
14 Heating safety valve
32 Heating circulating pump
36 Automatic air vent
40 DHW expansion tank (preventing water hammer)
44 Gas valve
56 Expansion tank
74 System filling cock
97 Magnesium anode
130 Hot water tank circulating pump
143 Hot water tank control thermostat
178 Hot water tank thermometer bulb
179 Non-return valve
180 Hot water tank
192 Recirculation
197 Manual air vent
209 Hot water tank delivery
210 Hot water tank return
233 Hot water tank drain cock
246 Pressure transducer
255 Boiler water circuit drain
273 Pilot burner assembly
275 Heating system drain cock
293 Hot water tank inspection flange
/201
A
52
197
246
11
32
130
56
179
293
209
143
178
192
97
275
210
197
36
74
A (Øi)
131
151
EN
40
7
10
A
37