Ferroli BlueHelix HiTech RRT C Instructions For Use, Installation & Maintenance page 377

BlueHelix HiTech RRT C
Fault
Fault
code
A23-A24-
Pressure sensor fault
F51
Intervention of fault F40 more
A26
than 3 times in 24 hours
F34 Supply voltage under 180V
F35 Wrong supply frequency
Incorrect system water pres-
F37
sure
F39 External probe fault
F40 Pressure sensor fault
A44 Multiple requests error
Pressure transducer no com-
F47
munication
Limit thermostat fault with
F50 - F53
parameter b06 = 1 or 4
F62 Calibration required
Maximum number of consecu-
F64
tive Resets exceeded
Specific combustion control
A65 - A97
errors
EN
Possible cause
Wrongly configured
parameter
System pressure prob-
lems (transducer)
b06 set to 3
System water pressure
too high
Expansion vessel dis-
charged or damaged
Electric mains trouble
Electric mains trouble
Pressure too low
Pressure transducer not
connected or damaged
Probe damaged or wir-
ing shorted
Probe disconnected after
activating the sliding tem-
perature
System water pressure
too high and parameter
P58 not set to default
Expansion vessel dis-
charged 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 con-
secutive Resets
exceeded
Fume ducts obstructed.
Low gas pressure (A78 -
A84).
Condensate trap
blocked.
Fumes recirculation or
combustion problem
cod. 3541V304 - Rev. 00 - 03/2024
Cure
Check if the parameter b04 is correctly
configured
System pressure value outside set lim-
its (transducer)
Partially drain the system to a pressure
(shown on the display) of 1÷1.5 bar
Charge or replace the expansion ves-
sel
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 disa-
ble the sliding temperature
Partially drain the system to a pressure
(shown on the display) of 1÷1.5 bar
Charge or replace the expansion ves-
sel
Check if there are pressure peaks in
the DHW circuit. If necessary, modify
parameter b11.
Check the electrical connection, trans-
ducer connector and wiring.
Replace the pressure transducer
Check the circulating pump and heat-
ing 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 reins-
tate the boiler
Check that the fume ducts and the
condensate trap are not blocked.
Check the correct gas supply pressure.
Do the CO adjustment in TEST mode.
2
If necessary, do the Calibration proce-
dure [AUTO SETUP].
377