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9.2.8 Inverter compressor drive error diagnosis and solution
Is the connection of compressor good?
Is the wiring sequence right? The
voltage range proper?
Yes
Replace the outdoor PCB
9.2.9 Zero crossing detection error
This is alarm signal when the main chip can't detect over-zero signal. When such failure occurs, the
main control board must have fault.
Appendix:
10
℃
F
48
17
℃
F
62
24
℃
F
76
℃
31
F
90
No
No
11
12
50
52
18
19
64
66
25
26
78
80
32
33
92
94
50
Reconnect and retry
Replace inverter compressor.
13
14
54
56
20
21
68
70
27
28
82
84
34
35
96
98
15
16
58
60
22
23
72
74
29
30
86
88
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