►
Faults in the Outdoor Unit
Error
Interface Board
Outdoor Unit
Board
Error designation
LED
Green
LED
Red
LED
11
1
1
Off
Serial communication error
1
32
3
2
-
UART communications error
42
4
2
22
Hydraulic unit heat-exchange thermistor error
63
6
3
18
Inverter error
64
6
4
19
Active filter error, PFC error
71
7
1
2
Discharge thermistor error
72
7
2
8
Compressor thermistor error
73
7
3
5
Heat-exchange thermistor error (centre)
4
Heat-exchange thermistor error (outlet)
74
7
4
7
Outdoor thermistor error
77
7
7
9
Heat sink thermistor error (Inverter)
10
Heat sink thermistor error (P.F.C.)
78
7
8
6
Expansion valve thermistor error
84
8
4
-
Current sensor error
86
8
6
3
Pressure sensor error / Pressure switch error
94
9
4
13
Current tripped
95
9
5
15
Compressor motor control error
97
9
7
16
Outdoor unit fan motor error
17
A1
10
1
11
Discharge temperature 1 protection
A3
10
3
12
Compressor temperature protection
A5
10
5
20
Low pressure abnormal
-
-
-
-
Outdoor unit error
- 77 -
alfea Excellia HP A.I. / Installation / 1944 - FR
Summary of Contents for 526651
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