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No. Code
1F4 module A L0 or L1 protection occursfor 3 times in 60 minutes
41
F4
2F4 module B L0 or L1 protection occursfor 3 times in 60 minutes
1F6 A system bus voltage error (PTC)
42
F6
2F6 B system bus voltage error (PTC)
43
Fb Low pressure sensor error(pressure sensor error for 90&180 model)
44
Fd Suction temperatrue sensor error
1FF DC fan A error
45
FF
2FF DC fan B error
46
FP DIP switch inconsistency of multiple water pumps
47
C7 If PL occurs 3 times in 100 minutes,the system reports the C7 failure
Compressor inverter module protection(x=1or 2,1 for Compressor A,2 for
48
xL0
Compressor B)
49
xL1 low-voltage protection(x=1or 2,1 for Compressor A,2 for Compressor B)
50
xL2 high-voltage protection(x=1or 2,1 for Compressor A,2 for Compressor B) Recovered upon error recovery
51
xL4 MCE error(x=1or 2,1 for Compressor A,2 for Compressor B)
52
xL5 zero-speed protection(x=1or 2,1 for Compressor A,2 for Compressor B)
53
xL7 phase loss(x=1or 2,1 for Compressor A,2 for Compressor B)
frequency change over 15Hz(x=1or 2,1 for Compressor A,2 for
54
xL8
Compressor B)
frequency phase difference 15Hz(x=1or 2,1 for Compressor A,2 for
55
xL9
Compressor B)
56
dF Defrosting prompt
L10 Overcurrent protection
57
L11 Transient phase current overcurrent protection
L12 Phase current overcurrent lasts 30s protection
58
L20 Module over temperature protection
L30 Low bus voltage error
L31 High bus voltage error
59
L32 Excessively high bus voltage error
L34 Phase loss error
L43 Phase current sampling bias abnormal
L45 Motor code not match
60
L46 IPM protection
L47 Module type not match
L50 Startup failure
61
L51 Out of step error
L52 Zero speed error
L60 Fan motor phase loss protection
L65 IPM short circuit error
L66 FCT detection error
L6A Open circuit of U-phase upper tube
62
L6B Open circuit of U-phase lower tube
L6C Open circuit of V-phase upper tube
L6D Open circuit of V-phase lower tube
L6E Open circuit of W-phase upper tube
L6F Open circuit of W-phase lower tube
Content
37
Note
Recovered by power off
Recovered by power off
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered by power off
Recovered by power off
Recovered by power off
Recovered by power off or Wired controller clear fault
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Flash when entering the defrosting
Overcurrent fault(Only for 75&140 Model )
Over temperature fault(Only for 75&140 Model )
Power fault(Only for 75&140 Model )
hardware fault(Only for 75&140 Model )
Control fault(Only for 75&140 Model )
Diagnostic fault(Only for 75&140 Model )
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