If a fault occurs, the error number appears on the welcome screen.
To obtain the error's designation, select it using the knob.
15:23
12°
24,0°
--,-
OFF
7 September 2017
Error XXX
In the event of an error originating in the outdoor unit, the user interface displays
error code "370: Thermodynamic Generator" followed by the outdoor unit error.
Error
138: No control sensor HP
Validate
The error log can be viewed in the "System Status" >
"Errors history", page 60.
►
Faults in the Hydraulic Unit
Error
Designation
Probable causes
Proposed actions
10
Outside sensor
Short-circuit.
Unplugged or disconnected sensor.
Faulty sensor.
Other fault.
Check the sensor's wiring.
Replace the sensor.
32
Flow sensor 2
33
Flow sensor HP
44
Return sensor HP
50
DHW sensor 1
60
Room sensor 1
65
Room sensor 2
83
BSB, short circuit
Wiring problem (between the sensor
or remote control, display and
controller).
Check the wiring.
127
Legionella temp
Anti-legionella temp setpoint not
reached.
Check the wiring of the DHW backup /
boiler connection.
212
Internal comm failure
Unplugged or disconnected sensor.
Check the sensor's wiring.
356
Flowmeter
Insufficient flow.
Check the opening of the valves of the
installation.
Check the flowmeter's wiring.
Replace the flowmeter.
369
External
External safety triggered EX3.
-
370
Thermodynamic source
See details in
"Faults in the Outdoor
Unit".
-
441
BX31 no function
Short-circuit.
Unplugged or disconnected sensor.
Faulty sensor.
Other fault.
Check the sensor's wiring.
Replace the sensor.
442
BX24 no function
443
BX33 no function
444
BX34 no function
516
Heat pump missing
Loss of connection between
controller and HP.
Check the wiring between X60 and the
interface board.
Fault Diagnosis
Before any maintenance operation,
ensure that the general power supply is switched off.
Frost protection is not available when the heat pump is not powered up.
OFF
ON
1
2
U0629273-A
- 76 -
alfea Excellia HP Duo A.I. / Installation / 1945 - EN
