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Fault diagnostic
Depending on whether the fault is on the heat pump or the hydraulic module, the fault may be indicated by the
hydraulic unit's digital display or the outdoor unit's display.
►
Faults displayed on the hydraulic unit
The faults or breakdowns of the hydraulic unit are reported on the display unit of the user interface.
The display shows the
symbol.
Press the
button to obtain the details of the origin of the fault.
When the error has been resolved, the faults are re-initialised at zero automatically.
■
Hydraulic module:
Error codes visible on the digital display
Error number Error contents
Error position
HP operation
despite the error
-
No connection.
The polarity of the ambient
sensor has not been respected.
No
10
Outdoor sensor.
B9
Yes
33
Heat pump start sensor temperature error.
B21
Yes
44
Heat pump start sensor temperature error.
B71
Yes
50
DHW temperature sensor.
B3
Yes
60
Ambient sensor 1.
Yes
65
Ambient sensor 2.
Yes
105
Maintenance message.
Yes
121
Heating circuit 1 start temperature not reached.
Yes
122
Heating circuit 2 start temperature not reached.
Yes
127
Anti-legionella temperature not reached.
Yes
369
External fault (safety device)
No
370
Outdoor unit error
(during a start-up phase, see § "Commissioning").
see below
.
No
441
2e zone sensor not configured (if 2nd circuits kit) BX31; Set the parameter 5700
to 2
No
516
Heat pump missing
Loss of connection between
controller and HP.
No
Aurea M / Installation / 1883 - EN
Summary of Contents for AEYC-0639U-AT
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