16
EN
cod. 3540I815 - 07/2011 (Rev. 00)
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 intact, not warped by the high tempera-
ture, 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 out-
wards.
4.4 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 shutdowns (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 automat-
ically reset as soon as the value returns within the burner's normal working range.
Table. 3 - List of faults
5. TECHNICAL DATA AND CHARACTERISTICS
5.1 Dimensions
fig. 14 - Dimensional SUN P7
fig. 15 - Dimensional SUN P12
Code Fault Cause Cure
A01
No ignition shut-
down
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
A02
Shutdown for par-
asite flame
Photoresistance short circuit Replace the photoresistance
Extraneous light strikes the photoresist-
ance
Eliminate light source
A04
Auger safety ther-
mostat block
Incorrect ignition parameters
Check the transparent parameters 03=51
and 04=12
Boiler under pressure
Clean it and check correct minimum flue
draught (10Pa)
Faulty safety thermostat Replace it
F05
Faulty pipe pres-
sure adjustment
Pressure sensor connection tube
squashed
Replace
Fan motor damaged Replace
Fan dirty Clean it
F06
Pressure trans-
ducer fault (dis-
connected)
Wiring disconnected Check the wiring or replace the sensor
F10
Boiler shell probe
fault (if enabled)
Sensor damaged
Check the wiring or replace the sensorWiring shorted
Wiring disconnected
A03
Wiring fault Jumper of terminals 13-14 not connected Check the wiring
454253
315
218
288 162
Ø 139
Ø190
Ø 60
253
315
490
218
280 210
226
Ø 168
Ø225
Ø 60
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