31
No. Code
Content
Note
38
PL
Inverter module temperature
Tfin too high temperature protection
Occurs 3 times in 100 minutes
and the error can be recovered
by turning off the power supply
only
40
xPU
DC fan module protection
x=1 means Fan A,x=2 means
Fan B Recovered upon error
recovery
46
H5
Voltage too high or too low
Recovered by power off
50
xH9
Compressor inverter module is not matched
x=1 means compressor A, x=2
means compressor B
55
xHE
Not insert electronic expansion valve error
x=1 means valve A, x=2 means
valve B
61
xF0
IPM module communication failure
x=1 means system A, x=2 means
system B
63
F2
Superheat insufficient
Occurs 3 times in 240 minutes
and the error can be recovered
by turning off the power supply
only
65
xF4
L0 or L1 protection occurs 3 times in 60 minutes
x=1 means system A, x=2 means
system B
67
xF6
DC bus voltage error (PTC)
x=1 means system A, x=2 means
system B
68
F7
Not insert electronic expansion valve
Recovered by power off
70
xF9
Inverter module temperature sensor error
x=1 means Tfin1, x=2 means
Tfin2
72
Fb
Pressure sensor error
Recovered upon error recovery
74
Fd
Suction temperature sensor error
Recovered upon error recovery
76
xFF
DC fan failure
x=1 means fan A, x=2 means fan
B
79
FP
DIP inconsistency of multiple water pumps
Recovered by power off
88
C7
If PL occurs 3 times,the system reports the C7 failure
Recovered by power off
101
L0
Compressor inverter module protection
Recovered upon error recovery
102
L1
DC bus low voltage protection
Recovered upon error recovery
103
L2
DC bus high voltage protection
Recovered upon error recovery
105
L4
MCE error
Recovered upon error recovery
106
L5
Zero speed protection
Recovered upon error recovery
108
L7
Phase sequence lost protection
Recovered upon error recovery
109
L8
Compressor frequency change over 15Hz
Recovered upon error recovery
110
L9
Compressor frequency difference 15Hz
Recovered upon error recovery
146
dF
Defrosting prompt
Flash when entering the
defrosting