Ferroli BlueHelix HiTech RRT C Instructions For Use, Installation & Maintenance page 48

Fault code Fault
Supply voltage under
F34
180V
F35 Wrong supply frequency
Incorrect system water
F37
pressure
F39 External probe fault
F40 Pressure sensor fault
A44 Multiple requests error
Pressure transducer no
F47
communication
Limit thermostat fault with
F50 - F53
parameter b06 = 1 or 4
F62 Calibration required
Maximum number of con-
F64
secutive Resets exceeded
Specific combustion con-
A65 ÷ A97
trol errors
Specific combustion con-
F65 ÷ F98
trol errors
Parasite flame signal after
A80
valve closing
Specific combustion con-
A88
trol errors or gas valve
48
BlueHelix HiTech RRT C
Possible cause
Electric mains trouble
Electric mains trouble
Pressure too low
Pressure transducer not
connected or damaged
Probe damaged or wiring
shorted
Probe disconnected after
activating the sliding tempe-
rature
System water pressure too
high and parameter P58 not
set to default
Expansion vessel dischar-
ged or damaged
Repeated short-term
requests
Pressure transducer not
electrically connected
Pressure transducer not
working
No/poor water circulation in
the system
Air in the system
Incorrect parameter
New card or boiler not yet
calibrated
Maximum number of conse-
cutive Resets exceeded
Fume ducts obstructed.
Low gas pressure (A78 -
A84).
Condensate trap blocked.
Fumes recirculation or com-
bustion problem
Fume ducts obstructed.
Low gas pressure.
Condensate trap blocked.
Fumes recirculation or com-
bustion problem
Electrode problem.
Gas valve problem.
PCB problem.
Calibration activation with
burner lit.
Combustion problem, faulty
gas valve or PCB
cod. 3541V691 - Rev. 00 - 04/2022
Cure
Check the electrical system
Check the electrical system
Fill the system
Check the pressure transducer
Check the wiring or replace the sensor
Reconnect the external probe or disable
the sliding temperature
Partially drain the system to a pressure
(shown on the display) of 1÷1.5 bar
Charge or replace the expansion vessel
Check if there are pressure peaks in the
DHW circuit. If necessary, modify para-
meter b11.
Check the electrical connection, transdu-
cer connector and wiring.
Replace the pressure transducer
Check the circulating pump and heating
system
Vent the system
Check the correct parameter setting
Do the Calibration procedure [AUTO
SETUP].
Disconnect the power supply to the boiler
for 60 seconds and then reinstate the
boiler
Check that the fume ducts and the con-
densate trap are not blocked. Check the
correct gas supply pressure.
Do the CO adjustment in TEST mode. If
2
necessary, do the Calibration procedure
[AUTO SETUP].
Check that the fume ducts and the con-
densate trap are not blocked. Check the
correct gas supply pressure.
Do the CO adjustment in TEST mode. If
2
necessary, do the Calibration procedure
[AUTO SETUP].
Check the correct position and condition
of the electrode.
Check the PCB.
Check the gas valve and replace it if
necessary.
Reset the fault and do the Calibration pro-
cedure [AUTO SETUP].
If necessary, replace the gas valve or
PCB.
EN