
The Codes of Failure Definitions are as Follows:
Fault code
Meaning
Compressor high pressure protection unit stop
Indoor unit anti-freezing protection
Low-pressure protection unit stop
Air exhaust protection unit stop
Over current protection unit stop
Communication malfunction unit stop
Unit modes conflict
Jumper malfunction
Defrosting /Heating oil return
Compressor overload protection unit stop
System Unit malfunction
IPM modular protection unit stop
PFC protection unit stop
Compressor malfunction
Indoor pipe temp. sensor malfunction
Outdoor ambient temp. sensor malfunction
Outdoor pipe temp. sensor malfunction
Outdoor air exhaust temp. sensor malfunction
E2 PROM Error
Wire controller ambient temp. sensor malfunction
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
E1
E2
E3
E4
E5
E6
E3
E3
defrost
E5
F2
E5
E5
E9
E9
F0
F1
F3
F2
F4
E3
F5
Water spill protection
Indoor ambient temp. sensor malfunction
Wire controller
When the unit is running operated by wire controller
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