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