DC Inverter U-match Series Duct Type Unit
62
Number Error code
Error
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.
