6 Troubleshooting
Depending on whether the fault comes from the
hydraulic circuit or refrigerant circuit, the fault may be
indicated by the digital display or the diode on the heat
pump.
6 1 Faults displayed on the control box
Faults or breakdowns on the hydraulic circuit are
indicated by the display on the user interface of the
control box.
The display shows the "Bell" symbol
.
Press the Info key for more details on the origin
of the fault.
When the error has been resolved, the faults are
re-initialised at zero automatically.
Control box
: Fault visible on the digital display
Error number Error contents
Error location
Heat pump operation
despite the error
-
No connection.
Failure to comply with
room thermostat's polarity.
No
10
Outdoor sensor.
B9
Yes with OT = 0 °C
33
Heat pump initial temperature sensor error.
B21
Yes
44
Heat pump return temperature sensor error.
B71
Yes
50
DHW temperature sensor.
B3
Yes
60
Ambient temperature sensor 1.
Yes
105
Maintenance message.
Yes
121
Flow temperature for (HC1) not reached.
Yes
127
Anti-legionella temperature not reached.
Yes
369
External fault (safety component).
No
370
Heat pump error
(Refer to the service manual of the heat pump).
No
6 2 Information display
Various data can be displayed by pressing the
info button
.
Depending on the type of unit, configuration and
operating state, some of the info lines listed below may
not appear.
-Possible error messages from the error code list.
-Possible service messages from the maintenance
code list.
-Possible special mode messages.
-Various data (see below).
Designation
Line
Floor drying current setpoint .
-
Current drying day.
-
Terminated drying days.
-
State heat pump.
8006
State supplementary source.
8022
State DHW.
8003
State swimming pool.
8011
State heating circuit 1.
8000
State cooling circuit 1.
8004
Outdoor temperature.
8700
Room temperature 1.
8740
Room setpoint 1.
Flow temperature 1.
8743
Flow temperature setpoint1.
DHW (domestic hot water) temperature.
8830
Heat pump return temperature.
8410
Setpoint (return) HP.
Heat pump flow temperature.
8412
Setpoint (flow) HP.
Swimming pool temperature.
8900
Swimming pool temperature setpoint.
"
Ensure that the general electrical power supply has been cut off before starting any repair work
"
When the HP is not under tension, protection frost-free is not assured
Installation and operating manual "1395 - EN"
- 35 -
Control Box
