Gree U-match Series Owner's Manual page 59

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