DC Inverter U-match Series Cassette Type Unit
55
Number
Error
code
Error
17
H3 Compressor overload protection
18
H4 Overload
19
H5 IPM protection
20
H6 DC fan error
21
H7 Driver out-of-step protection
22
HC Pfc protection
23
Lc
Startup failure
24
Ld Compressor phase-sequence protection
25
LF Power protection
26
Lp IDU and ODU unmatched
27
U7 4
–way valve switch-over error
28
P0 Driver reset protection
29
P5 Over-current protection
30
P6 Master control and driver communication error
31
P7 Driver module sensor error
32
P8 Driver module high temperature protection
33
P9 Zero-crossing protection
34
PA AC current protection
35
Pc Driver current error
36
Pd Sensor connection protection
37
PE Temperature drift protection
38
PL Bus low-voltage protection
39
PH Bus high-voltage protection
40
PU Charge loop error
41
PP Input voltage error
42
ee Drive memory chip error
43
C4 ODU jumper cap error
44
dJ
Phase-loss and anti-phase protection
45
oE ODU error, for specific error please see the status of ODU indicator
46
EL Emergency Stop(Fire alarm)
Notice:
When the unit is connected with the wired controller, the error
code will be simultaneously shown on it.
