Lamborghini Caloreclima ALHENA TECH H Serie Instrucciones De Uso, Instalación Y Mantenimiento página 346

Fault code Fault
High fume temperature
F15 - A07
Card parameter fault
F19
System pressure slightly
high (visible only in the
F21
Alarm menu)
Pressure sensor fault
A23-A24-F51
Intervention of fault F40
more than 3 times in 24
A26
hours
Supply voltage under
F34
180V
Wrong supply frequency
F35
Incorrect system water
F37
pressure
External probe fault
F39
Pressure sensor fault
F40
Multiple requests error
A44
Pressure transducer no
F47
communication
Limit thermostat fault with
F50 - F53
parameter b06 = 1 or 4
Calibration required
F62
Maximum number of con-
secutive Resets
F64
exceeded
Specific combustion con-
A65 ÷ A97
trol errors
346
Possible cause
The fume probe detects an
excessive temperature
Wrong card parameter set-
ting
System water pressure too
high
Wrongly configured
parameter
System pressure problems
(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 wiring
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. 3541V622 - Rev 00 - 05/2022
ALHENA TECH H
Cure
Check the exchanger
Check the fume probe
Check the flue material parameter
Check and if necessary modify param-
eter 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
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 rein-
state 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.
2
If necessary, do the Calibration proce-
dure [AUTO SETUP].
EN