RAGGIO C
201
EN
cod. 3541V280 - Rev. 01 - 04/2021
Table of faults
Table 8- List of faults
Fault code
Fault
Possible cause
Cure
A01
No burner ignition
No gas
Check the regular gas flow to the boiler
and that the air has been eliminated
from the pipes
Ignition/detection elec-
trode fault
Check the wiring of the electrode and
that it is correctly positioned and free of
any deposits; replace the electrode if
necessary.
Faulty gas valve
Check the gas valve and replace it if
necessary
Insufficient gas supply
pressure
Check the gas supply pressure
Trap blocked
Check the trap and clean it if necessary
Air/fume ducts obstructed
Remove the obstruction from the flue,
fume extraction ducts, air inlet and ter-
minals.
A02
Flame present signal with
burner off
Electrode fault
Check the ionization electrode wiring
Check the condition of the electrode
Electrode to ground
Cable to ground
Check the trap and clean it if necessary
Card fault
Check the card
A05
Fan fault
No 230V power supply
Check the 5-pin connector wiring
Tachometric signal inter-
rupted
Fan damaged
Check the fan
A06
No flame after the igni-
tion phase
Ionization electrode fault
Check the position of the ionization
electrode and replace it if necessary
Flame unstable
Check the burner
air/fume ducts obstructed
Remove the obstruction from the flue,
fume extraction ducts, air inlet and ter-
minals
Trap blocked
Check the trap and clean it if necessary
F03
F15
F18
A07
High fume temperature
The fume probe detects an
excessive temperature
Check the exchanger
Check the flue gas probe
Check the flue material parameter
F04
A08
Overtemperature protec-
tion intervention
Heating sensor damaged
Check the correct positioning and oper-
ation of the heating sensor and replace
it if necessary
No water circulation in the
system
Check the circulating pump
Air in the system
Vent the system
F16
A09
Overtemperature protec-
tion intervention
Return sensor damaged
Check the correct positioning and oper-
ation of the return sensor and replace it
if necessary
No water circulation in the
system
Check the circulating pump
Air in the system
Vent the system