12
2.9 Failure indication
A
．
Failure indication for outdoor unit
：
The red light will flash when there is any failure happened.Otherwise, no red light is on.
The green light will be on when outdoor unit is with electricity.
B
．
Failure indication for indoor unit
：
1.PG motor failure---F0
2.Indoor temperature sensor failure---F1
3.Outdoor temperature sensor failure---F2(The red light on outdoor PCB will flash twice)
4.Indoor pipe coil temperature sensor failure---F3
5.Outdoor pipe coil temperature sensor failure---F4(The red light on outdoor PCB will flash
one time)
6.Exhausting temperature sensor failure---F5(The red light on outdoor PCB will flash 4
times)
7.Indoor communications can not be accepted---F6(The red light on outdoor PCB will flash 6
times)
8.Outdoor unit and IPDU communications failure---F8(The red light on outdoor PCB will
flash 14 times)
9.IPM module protection---F9(The red light on outdoor PCB will flash 7 times)
10.Indoor EEPROM on PCB failure---FD
11.Outdoor EEPROM on PCB failure---FE(The red light on outdoor PCB will flash 5 time)
12.Compressor overhead protection----E0(The red light on outdoor PCB will flash 11 times)
13.IPM over current protection---E3(The red light on outdoor PCB will flash 12 times)
14
．
IPDU current sensor (no or failure)---E3(The red light on outdoor PCB will flash 12 times)
15.IPDU position circuit failure ---E6(The red light on outdoor PCB will flash 19 times)
16.Compressor speed up abnormally---E7(The red light on outdoor PCB will flash 18 times)
17.Compressor is stemmed ---E7(The red light on outdoor PCB will flash 15 times)
18.Compressor desynchronizing while running---E7(The red light on outdoor PCB will flash
17 times)
19.Compressor failure ---E8(The red light on outdoor PCB will flash 16 or 20 times)
20.Board temperature too high---E9(The red light on outdoor PCB will flash 13 times)
C.Failure indication for indoor unit
：：
1. Protection for compressor exhausting temperature----P1(The red light on outdoor PCB
will flash 25 times)
2.Defrosting----P3
3.Heating overload----P4(The red light on outdoor PCB will flash 27 times)
4.Freeze-prevention----P5(The red light on outdoor PCB will flash 28 times)
5.Cooling overload----P6(The red light on outdoor PCB will flash 26 times)
