Ferroli SUN P7 - Troubleshooting Faults

SUN P7
48
Cod. 3540I810 - 03/2009 (Rev. 00)
EN
Checks on parts and components
Fan
Make sure no dust has accumulated inside the fan and on the blades: it reduces the air flow, thus causing
pollutant combustion.
Combustion head
Make sure all parts of the combustion head are integral, not buckled by the high temperature, free of
impurities coming from the room, and correctly positioned.
Photoresistance
Remove any dust on the glass. The photoresistance is press-on; to remove, pull it outwards.
3.4 Troubleshooting
The burner is equipped with an advanced self-diagnosis system. In case of a burner anomaly, the display
(detail 7 - fig. 1) flashes indicating the fault code.
There are faults that cause permanent shutdown (marked with the letter “A”): to restore operation,
press the button "P" (detail 5 - fig. 1) for 1 second; if the burner fails to start, 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 working range.
Fault list
Code Fault Cause Cure
A01
no ignition shutdown
- pellet container empty
- auger cable broken or disconnected
- faulty igniter resistance
- combustion head dirty
- pellet feed duct blocked
- fi ll the container with pellets
- restore the connection
- replace and empty the head of pellets
- empty and clean it
- free it, make sure the combustion head is not
clogged and empty it if necessary
F02
Parasite fl ame elimi-
nation
- The demand for heat has ended, but
the burner detects fl ame.
- Wait for end of post-ventilation
A02
Shutdown for parasite
fl ame
- photoresistance short circuit
- extraneous light strikes the photore-
sistance
- replace the photoresistance
- eliminate the light source
A04
Auger safety thermo-
stat shutdown
- incorrect ignition parameters
- boiler under pressure
- faulty safety thermostat
- check the transparent parameters 03=51 and
04=12
- clean it and check correct minimum fl ue
draught (10Pa)
- replace
F05
Incorrect pipe pressure
adjustment
- pressure sensor connection tube
squashed
- fan motor damaged
- fan dirty
- replace
- replace
- clean it
F06
Pressure transducer
fault (disconnected)
- wiring disconnected - Check the wiring or replace the sensor
F10
Boiler shell probe fault
(if enabled)
- sensor damaged
- wiring shorted
- wiring disconnected
- Check the wiring or replace the sensor