Table of faults
Table 10- List of faults
Fault code
Fault
A01
No burner ignition
Flame present signal with bur-
A02
ner off
A05
Fan fault
No flame after the ignition
A06
phase
F07 - F14
High fume temperature
F15 - A07
F08
Overtemperature protection
A08
intervention
F09
Overtemperature protection
A09
intervention
F10
Delivery sensor fault
A10
F11
Return sensor fault
A11
F12
DHW sensor fault
246
BLUEHELIX TOP RRT K 50
Possible cause
No gas
Ignition/detection electrode
fault
Faulty gas valve
Insufficient gas supply pres-
sure
Trap blocked
Air/fume ducts obstructed
Electrode fault
Card fault
No 230V power supply
Tachometric signal interrupted
Fan damaged
Ionization electrode fault
Flame unstable
air/fume ducts obstructed
Trap blocked
The fume probe detects an
excessive temperature
Heating sensor damaged
No water circulation in the sys-
tem
Air in the system
Return sensor damaged
No water circulation in the sys-
tem
Air in the system
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
cod. 3541Q281 - Rev. 02 - 10/2020
Cure
Check the regular gas flow to the boiler and
that the air has been eliminated from the pipes
Check the wiring of the electrode and that it is
correctly positioned and free of any deposits;
replace the electrode if necessary.
Check the gas valve and replace it if necessary
Check the gas supply pressure
Check the trap and clean it if necessary
Remove the obstruction from the flue, fume
extraction ducts, air inlet and terminals.
Check the ionization electrode wiring
Check the condition of the electrode
Electrode to earth
Cable to earth
Check the trap and clean it if necessary
Check the card
Check the 5-pin connector wiring
Check the fan
Check the position of the ionization electrode
and replace it if necessary
Check the burner
Remove the obstruction from the flue, fume
extraction ducts, air inlet and terminals
Check the trap and clean it if necessary
Check the exchanger
Check the flue gas probe
Check the flue material parameter
Check the correct positioning and operation of
the heating sensor and replace it if necessary
Check the circulating pump
Vent the system
Check the correct positioning and operation of
the return sensor and replace it if necessary
Check the circulating pump
Vent the system
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the sensor
EN