BARD 

1. PG motor failure---F0
2. Indoor temperature sensor failure---F1
3. Outdoor temperature sensor failure---F2
4. Indoor pipe coil temperature sensor failure---F3
5. Outdoor pipe coil temperature sensor failure---F4
6. Exhausting temperature sensor failure---F5
7. Indoor communications can not be accepted ---F6
8. Outdoor communications can not be accepted ---F7
9. Outdoor unit and IPDU communications failure---F8
10. IPM module protection---F9
11. Compressor overhead protection----E0
12. IPM overcurrent protection---E1
13. IPM-EEPROM failure---E2
14. IPDU current sensor (no)---E3
15. IPM DC low voltage protection---E4
16. Abnormal communication between IPM and CDB---E5
17. IPDU synchronization failure---E6
18. IPDU desynchronizing while running---E7
19. Compressor speed up abnormally---E8
20. Board temperature too high---E9
C . ??????????)
1. Protection for compressor exhausting temperature----P1
2. Overcurrent protection----P2
3. Defrosting----P3
4. Heating overload----P4
5. Freeze-prevention----P5
Appendix:Usage for test code of remote controller
Press “Air Refresh” button on the remote controller KK23 for 5 seconds to enter test code
emitting condition of remote controller. Users can change test code
by the temperature up or down button and emit the code by pressing “air conditioner ” button
Press “Air Refresh” button on the remote controller KK23 for 5 seconds again to exist test code condition.
When electricity comes again after power failure, 
the former test code becomes ineffective.
1------Test run
2------Time saving
3------Self check
4------Cancel the function of“1”?“2”?
??????
20
“3”
6------Frequency locking rated cooling point;Frequency locking rated heating point;
7------ Frequency locking rated cooling point;Frequency locking middle cooling point; Frequency locking middle heating point;
8------ Cancel the function of “6”?“7”
11-----Display indoor temperature
12-----Display indoor pipe coil
13----- Display outdoor temperature
14----- Display outdoor pipe coil
15-----Display compressor exhausting temperature
16-----Display running current
17----Indoor unit protection display