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
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