Service manual

TROUBLE SHOOTING
HKD DCI 51 Version - 1
10. Troubleshooting
10.1 Indoor Unit Error Display
Operation lamp
Timer lamp
Display
LED STATUS
☆ 1 time
X
E0
Indoor unit EEPROM parameter error
☆ 2 times
X
E1
Indoor / outdoor units communication error
☆ 3 times
X
E2
Zero crossing signal detection error(only for AWSI-HKD009-N11
)
☆ 4 times
X
E3
Indoor fan speed has been out of control
☆ 5 times
X
E4
Open circuit or short circuit of indoor room temperature T1
sensor
☆ 6 times
X
E5
Open circuit or short circuit of evaporator coil temperature T2
sensor
☆ 7 times
X
EC
Refrigerant Leakage Detection
☆ 2 times
O
F1
Open circuit or short circuit of outdoor ambient T4 temperature
sensor
☆ 3 times
O
F2
Open circuit or short circuit of condenser coil temperature T3
sensor
☆ 4 times
O
F3
Open circuit or short circuit of compressor discharge T5
temperature sensor
☆ 5 times
O
F4
Outdoor unit EEPROM parameter error
☆ 6 times
O
F5
Outdoor fan speed has been out of control
☆ 1 times
☆
P0
IPM malfunction or IGBT over-strong current protection
☆ 2 times
☆
P1
Over voltage or over low voltage protection
☆ 3 times
☆
P2
High temperature protection of compressor top diagnosis and
solution(Only for AWSI-HKD024-N11 models)
☆ 5 times
☆
P4
Inverter compressor drive error
O（light） X（off） ☆（flash）