Ferroli SUN P N Series, Instructions For Use, Installation And Maintenence

Page: 47 / 220

SUN P N
47
EN
cod. 3541F710 - Rev. 00 - 05/2017
3.3 Troubleshooting
The burner is equipped with an advanced self-diagnosis system. In case of a burner fault, the display (detail 4 - fig. 1)
flashes indicating the fault code.
There are faults the cause permanent shutdowns (marked with the letter
"A" ): to reinstate operation, press the “Reset”
button (detail 8 - fig. 1) for 1 second; if the burner fails to restart, it is necessary to firstly eliminate the fault.
Other faults cause temporary shutdowns (marked with the letter "F" ) which are automatically reset as soon as the value
returns within the burner's normal operating range.
Table. 5 - List of faults
Fault Fault Cause Cure
A01 No ignition shutdown
Pellet container empty Fill the container with pellets
Auger cable broken or disconnected Restore the connection
Faulty igniter resistance Replace and empty the head of pellets
Combustion head dirty Empty and clean it
Pellet feed duct obstructed
Free it, make sure the combustion head is
not clogged and empty it if necessary
F02 Parasite flame elimination
The demand for heat has ended, but the
burner detects flame
Wait for end of post-ventilation
Incorrect ignition parameters Check ignition parameters
A02 Shutdown for parasite flame
Photoresistance short circuit Replace the photoresistance
Extraneous light strikes the photoresistance Eliminate the light source
Incorrect ignition parameters Check ignition parameters
A03 Wiring fault Jumper of terminals 20-21 not connected Check the wiring
A04 Auger safety thermostat block
Boiler under pressure
Clean it and check correct minimum flue
draft (10Pa)
Faulty safety thermostat Replace it
Auger cable broken or disconnected Restore the connection
F05 Incorrect pipe pressure adjustment
Pressure sensor connection tube squashed Replace
Fan motor damaged Replace
Fan dirty Clean it
F06
Pressure transducer fault (discon-
nected)
Wiring disconnected Check the wiring or replace the sensor
F10 Boiler shell probe fault (if enabled)
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F11 DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F14 Card parameter fault Wrong card parameter setting
Check the card parameter and modify it if
necessary
F34 Supply voltage under 170V. Electric mains trouble Check the electrical system
F37 Card parameter fault Wrong card parameter setting
Check the card parameter and modify it if
necessary
F42 Card parameter fault Wrong card parameter setting
Check the card parameter and modify it if
necessary