DC Inverter U-match Series Duct Type Unit
28
5 Installation of Controllers
Refer to the Installation Manual of the controller for more details.
6 Test Running
6.1 Trial Operation and Testing
(1). The meaning of error codes as shown below:
Table 11
Number
Error code
Error
Remarks
1
E1
Compressor high pressure protection
2
E2
Indoor anti-freeze protection
3
E3
Compressor low pressure protection, refrigerant lack
protection and refrigerant colleting mode
4
E4
Compressor high discharge temperature protection
5
E6
Communication error
6
E8
Indoor fan motor error
7
E9
Full water protection
8
F0
Indoor ambient temperature sensor error
9
F1
Evaporator temperature sensor error
10
F2
Condenser temperature sensor error
11
F3
Outdoor ambient temperature sensor error
12
F4
Discharge temperature sensor error
13
F5
Temperature sensor error of wired controller
15
C5
Capacity code error
16
EE
Outdoor memory chip error
17
PF
Electric box sensor error
18
H3
Compressor overload protection
19
H4
Overloading
20
H5
IPM protection
21
H6
DC fan motor error
22
H7
Drive desynchronizing protection
23
Hc
Pfc protection
25
Lc
Activation failure
26
Ld
Compressor phase sequence protection
27
LE
Compressor stalling protection
28
LF
Power protection
29
Lp
Indoor and outdoor mismatch
30
U7
4-way valve direction changing protection
31
P0
Drive reset protection
32
P5
Over-current protection
33
P6
Communication error between main control and drive
34
P7
Drive module sensor error
35
P8
Drive module over temperature protection
36
P9
Zero passage protection
37
PA
AC current protection