BlueHelix HiTech RRT C
47
EN
cod. 3541V691 - Rev. 00 - 04/2022
A09
Exchanger protection
intervention
No water circulation in the
system
Check the circulating pump and heating
system
Poor circulation and ano-
malous flow probe tempera-
ture increase
Vent the system
blocked exchanger
check the exchanger and system
F09
Overtemperature protec-
tion intervention
Flow sensor damaged
Check correct positioning and operation
of the flow sensor and replace it if neces-
sary
No water circulation in the
system
Check the circulating pump and heating
system
Air in the system
Vent the system
F10
Flow sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
A11
Gas valve connection
Gas valve connector not
inserted.
Insert the connector
Electrical connection bet-
ween control unit and gas
valve interrupted.
Check the wiring
Gas valve damaged.
Replace the gas valve
F11
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
F13
Fume probe fault
Probe damaged
Check the wiring or replace the fume
probe
Wiring shorted
Wiring disconnected
A14
Fume extraction duct
safety device intervention
Fault A07 generated 3
times in the last 24 hours
See fault A07
F15 - A07
High fume temperature
The fume probe detects an
excessive temperature
Check the exchanger
Check the fume probe
Check the flue material parameter
F19
Card parameter fault
Wrong card parameter set-
ting
Check and if necessary modify parameter
b15 to 3
F21
System pressure slightly
high (visible only in the
Alarm menu)
System water pressure too
high
Partially drain the system to a pressure
(shown on the display) of 1÷1.5 bar.
Check the expansion tank
A23-A24-F51
Pressure sensor fault
Wrongly configured para-
meter
Check if the parameter
b04
is correctly
configured
System pressure problems
(transducer)
System pressure value outside set limits
(transducer)
b06
set to 3
A26
Intervention of fault F40
more than 3 times in 24
hours
System water pressure too
high
Partially drain the system to a pressure
(shown on the display) of 1÷1.5 bar
Expansion vessel dischar-
ged or damaged
Charge or replace the expansion vessel
Fault code
Fault
Possible cause
Cure
Summary of Contents for 47-267-74
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