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Faults in the outdoor unit
■ Hydraulic unit: Flashing of the diode visible on the interface board.
Interface Board
Error
LED
LED
Green
Red
11
1
1
23
2
3
32
3
2
42
4
2
62
6
2
63
6
3
65
6
5
71
7
1
72
7
2
73
7
3
74
7
4
77
7
7
78
7
8
84
8
4
86
8
6
94
9
4
95
9
5
97
9
7
A1
10
1
A3
10
3
A5
10
5
AC
10
12
- 68 -
Error designation (models 5, 6 and 8)
Hydraulic unit heat-exchange thermistor error
-
-
Heat-exchange thermistor error (outlet)
-
Pressure sensor error / Pressure switch error
Current tripped (permanent stoppage)
Detection of compressor position error
(permanent stoppage)
Discharge temperature protection (permanent stoppage)
Compressor temperature protection (permanent stoppage)
Low pressure abnormal
-
Waterstage Split Comfort DHW Serie / INSTALLATION / 2125 - EN
Error designation (model 10)
Serial communication error
Combination Error
UART communications error
Outdoor unit main PCB error
Outdoor unit IPM error
Discharge thermistor error
Compressor thermistor error
Heat-exchange thermistor error (centre)
Heat-exchange thermistor error (outlet)
Outdoor thermistor error
Heat sink thermistor error (P.F.C.)
Expansion valve thermistor error
Current sensor error
Compressor motor control error (permanent
Outdoor unit fan motor error
Outdoor unit radiator temperature error
Inverter error
stoppage)
Pressure error
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