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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
E
5
E6
E
3
E3
defrost
E5
F
2
E
5
E5
E9
E9
F0
F1
F3
F2
F4
E3
F5
Water spill protection
Indoor ambient temp. sensor malfunction
Wire controller
Failure Display
When there is failure in the unit operation, “ERROR” will
flash on the LCD of the wire controller and the code of fai-
lure will also be displayed. When there are multiple failures
at the same time, the codes of failures will be displayed
one after one on the wire controller. The first digit of the
code denotes the system number. When there is only one
system, the system number is not displayed. The last two
digits denote the detailed failure code. For example, the
code in Figure 13 means low pressure protection of com-
pressor.
• The “EH” failure is displayed, cut off the power supply of the unit immediately,
and only ask professional serviceman to repair the unit!
E5 Material Malfunction Will Be Showed By The Indicator Light On The Mother Board Of Outside Unit
9