BLUEHELIX TECH RRT 24 C
43EN
cod. 3541P250 - Rev. 01 - 07/2018
Fault code Table
Table. 8- List of faults
Fault code Fault Possible cause Cure
A01 No burner ignition
No gas
Check for correct gas flow & pressure to the
boiler and that the pipework has been purged.
Ignition/detection electrode fault
Check the wiring of the electrode and that it is
correctly positioned and free of any deposits;
replace / clean 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
Condense trap or pipes blocked Check the trap and pipes, clean it if necessary
Air/fume ducts obstructed
Remove the obstruction from the flue, extraction
ducts, air inlet and terminals.
A02 Flame signal present with burner off
Electrode fault
Check the ionisation electrode wiring
Check the condition of the electrode
Electrode to earth
Cable to earth
Check the condenser trap clean it if necessary
PCB fault Check the PCB
A05 Fan fault
No 230V power supply
Check the 5-pin connector wiring
Tachometric signal interrupted
Fan damaged or out of balance Check the fan, clean or replace
A06 No flame after the ignition phase
Ionisation electrode fault Check the position of the ionisation electrode and
replace it if necessary
Flame unstable Check the burner
air/flue ducts obstructed
Remove the obstruction from the flue, fume
extraction ducts, air inlet and terminals
Condense trap or pipes blocked Check the trap and pipes clean it if necessary
F07 - F14 -
A07
High flue gas temperature
The flue gas probe detects an exces-
sive temperature
Check the exchanger
Check the flue gas probe
F08
A08
Over temperature protection inter-
vention
Heating sensor damaged
Check the correct positioning and operation 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
F09
A09
Over temperature protection inter-
vention
Return sensor damaged
Check the correct positioning and operation 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
F10
A10
Flow sensor fault
Sensor damaged
Check the wiring or replace the sensorWiring shorted
Wiring disconnected
F11
A11
Return sensor fault
Sensor damaged
Check the wiring or replace the sensorWiring shorted
Wiring disconnected
F12 DHW sensor fault
Sensor damaged
Check the wiring or replace the sensorWiring shorted
Wiring disconnected
F13
A13
Flue probe fault
Probe damaged
Check the wiring or replace the flue probeWiring shorted
Wiring disconnected
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