Lamborghini Caloreclima ALHENA TECH C Serie Instrucciones De Uso, Instalación Y Mantenimiento página 332

Fault code Fault
Overtemperature protection interven-
F09
tion
Flow sensor fault
F10
Gas valve connection
A11
Return sensor fault
F11
DHW sensor fault
F12
Fume probe fault
F13
Fume extraction duct safety device
A14
intervention
F15 - A07 High fume temperature
Card parameter fault
F19
System pressure slightly high (visible
F21
only in the Alarm menu)
A23-A24-
Pressure sensor fault
F51
Intervention of fault F40 more than 3
A26
times in 24 hours
Supply voltage under 180V
F34
Wrong supply frequency
F35
Incorrect system water pressure
F37
332
EN
Possible cause
Flow sensor damaged
No water circulation in the
system
Air in the system
Sensor damaged
Wiring shorted
Wiring disconnected
Gas valve connector not
inserted.
Electrical connection between
control unit and gas valve
interrupted.
Gas valve damaged.
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Probe damaged
Wiring shorted
Wiring disconnected
Fault A07 generated 3 times
in the last 24 hours
The fume probe detects an
excessive temperature
Wrong card parameter setting
System water pressure too
high
Wrongly configured parame-
ter
System pressure problems
(transducer)
b06 set to 3
System water pressure too
high
Expansion vessel discharged
or damaged
Electric mains trouble
Electric mains trouble
Pressure too low
Pressure transducer not con-
nected or damaged
cod. 3541V512 - Rev 00 - 07/2022
ALHENA TECH C
Cure
Check correct positioning and operation of the
flow sensor and replace it if necessary
Check the circulating pump and heating sys-
tem
Vent the system
Check the wiring or replace the sensor
Insert the connector
Check the wiring
Replace the gas valve
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the fume probe
See fault A07
Check the exchanger
Check the fume probe
Check the flue material parameter
Check and if necessary modify parameter b15
to 3
Partially drain the system to a pressure
(shown on the display) of 1÷1.5 bar.
Check the expansion tank
Check if the parameter b04 is correctly config-
ured
System pressure value outside set limits
(transducer)
Partially drain the system to a pressure
(shown on the display) of 1÷1.5 bar
Charge or replace the expansion vessel
Check the electrical system
Check the electrical system
Fill the system
Check the pressure transducer