BLUEHELIX TOP RRT K 50
246
EN
cod. 3541Q281 - Rev. 02 - 10/2020
Table of faults
Table 10- 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 electrode
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 pres-
sure
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 terminals.
A02
Flame present signal with bur-
ner off
Electrode fault
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
Card fault
Check the card
A05
Fan fault
No 230V power supply
Check the 5-pin connector wiring
Tachometric signal interrupted
Fan damaged
Check the fan
A06
No flame after the ignition
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 terminals
Trap blocked
Check the trap and clean it if necessary
F07 - F14
F15 - A07
High fume temperature
The fume probe detects an
excessive temperature
Check the exchanger
Check the flue gas probe
Check the flue material parameter
F08
A08
Overtemperature protection
intervention
Heating sensor damaged
Check the correct positioning and operation of
the heating sensor and replace it if necessary
No water circulation in the sys-
tem
Check the circulating pump
Air in the system
Vent the system
F09
A09
Overtemperature protection
intervention
Return sensor damaged
Check the correct positioning and operation of
the return sensor and replace it if necessary
No water circulation in the sys-
tem
Check the circulating pump
Air in the system
Vent the system
F10
A10
Delivery sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
F11
A11
Return sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
F12
DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected