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Air to Water Heat Pump (Split integrated DHW type)
Hydraulic unit: Flashing of the LED visible on the interface card.
Outdoor unit
Error number
LED 2 (green)
11
1 Flash
23
2 Flashs
31
3 Flashs
32
3 Flashs
41
4 Flashes
42
4 Flashes
61
6 Flashs
62
6 Flashs
63
6 Flashes
64
6 Flashes
65
6 Flashs
67
6 Flashs
68
6 Flashs
71
7 Flashes
72
7 Flashes
73
7 Flashes
74
7 Flashes
77
7 Flashs
78
7 Flashes
84
8 Flashes
86
8 Flashes
94
9 Flashes
95
9 Flashes
97
9 Flashes
A1
10 Flashes
A3
10 Flashes
A4
10 Flashs
A5
10 Flashes
A9
10 Flashs
Continuous flashing
-
(1 sec On / 1 sec Off)
Continuous
-
lighting
Installation and operating manual "1768 - EN"
LED display
Error contents
LED 1 (red)
1 Flash
Communication error between Hydraulic unit and Outdoor unit.
3 Flashs
Connection forbidden (series error).
1 Flash
Indoor unit power supply abnormal.
2 Flashs
Serial communication error between Controller /Interface PCBs.
1 Flash
Heat pump capacity signal error (Open or short).
2 Flashes
Hydraulic unit heat-exchange thermistor Error.
1 Flash
Outdoor unit power supply abnormal.
2 Flashs
Outdoor unit main PCB error.
3 Flashes
Inverter error.
4 Flashes
Active filter error.
5 Flashs
Outdoor unit IPM error.
7 Flashs
Outdoor unit power short interruption error (protective operation).
8 Flashs
Outdoor unit magnetic relay error.
1 Flash
Discharge thermistor error.
2 Flashes
Compressor thermistor error.
3 Flashes
Heat-exchange thermistor (outlet / intermediate) error.
4 Flashes
Outdoor thermistor error.
7 Flashs
Outdoor unit heat sink temp. thermistor error.
8 Flashes
Expansion valve thermistor error.
4 Flashes
Current sensor error.
6 Flashes
Pressure sensor error / Pressure switch error.
4 Flashes
Current trip.
5 Flashes
Detection of compressor position error / Compressor start up error.
7 Flashes
Outdoor unit fan motor error.
1 Flash
Discharge temperature protection.
3 Flashes
Compressor temperature protection.
4 Flashs
Outdoor unit pressure error.
5 Flashes
Low pressure abnormal.
9 Flashs
Current overload error.
Pump down operation.
Off
Defrosting.
- 69 -
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