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List of Outdoor Unit Anomalies.
Error
Code
Anomaly signalled
Cause
Boiler status / Solution
1006
Return probe anomaly
Inlet water temperature sensor anomaly
(1)
1008
Storage tank probe
flow
Outlet water temperature sensor anomaly
(1)
1015
Abnormal flow tempe-
rature increase (during
DHW heating)
Abnormal flow water temperature increase in the outdoor unit
during the DHW heating phase
(1)
1016
Abnormal flow tempe-
rature increase
Abnormal flow water temperature increase in the outdoor unit (1)
1019
System water overtem-
perature
Water circuit overheating
(1)
1020
Power supply voltage
anomaly
Anomaly on the supply voltage of the outdoor unit
(power supply displacement)
(1)
1021
High pressure anomaly
Outdoor unit evaporator/condenser anomaly (evaporator
temperature below 0°C or condenser temperature greater equal
to 59.5 °C)
(1)
1022
Overtemperature
Outdoor unit sensors overtemperature anomaly
(1)
1024
Overtemperature
DHW accumulation
High temperature on the DHW storage tank
(1)
1026
DHW accumulation
heating
DHW heating time greater than 6 hours
(1)
1032
Liquid probe anomaly
Liquid phase temperature sensor anomaly
(1)
1036
Board anomaly
check
EEPROM control board anomaly
(1)
1039
High pressure switch
fault
High pressure switch intervention
(1)
1040
High pressure switch
fault
The pressure sensor has detected a value close to the interven-
tion of the pressure switch for 16 times in 300 minutes
(1)
1043
Overload
compressor
Compressor inverter overtemperature detected
(1)
1044
Compressor start anomaly
Compressor motor rotation anomaly
(1)
1045
Fan anomaly
Fan stopped on start up
(1)
1046
Fan anomaly
Fan rotation anomaly
(1)
1050
Compressor overcurrent
anomaly
Compressor power supply voltage too high
(1)
1053
Summer/winter switch
fault
Summer/winter switch fault
(1)
1054
DHW accumulation
temperature anomaly
Abnormal domestic hot water temperature increase
(1)
1057
Power supply voltage
compressor
Compressor power supply voltage out of range before ignition
(1)
1060
High pressure switch
error
High pressure switch fault
(1)
1064
Compressor start anomaly
The compressor does not start up properly
(1)
1065
Compressor anomaly
Compressor power supply BUS not coherent
(1)
1066
Storage tank probe
external temperature
Outdoor air temperature sensor anomaly
(1)
1072
High discharge tempe-
rature
Compressor discharge temperature too high
(1)
1077
High external coil tem-
perature
High temperature on external coil
(1)
1078
High pressure on
external coil
Temperature too high on external coil
(1)
(1) If the block or anomaly persists, contact an authorised company (e.g. Authorised After-Sales Centre).
(2) The anomaly can only be verified in the list of errors in the “Information” menu
