| Name of Malfunction
|
Display of indoor unit
|
State of the lamps on the outdoor unit PCB
|
|
| Error Code
|
Yellow
|
Red
|
Green
|
Reasons
|
| Compressor running (normal)
|
|
blink 1 time
|
|
|
Part of normal operation
|
| Automatic defrosting (normal)
|
H1
|
blink 2 times
|
|
|
Part of normal operation
|
| Anti-freezing protection
|
E2
|
blink 3 times
|
|
|
Refrigerant leakage / indoor unit airflow blocked up / filter duty
|
| Stop for IPM module protection (over current)
|
H5
|
blink 4 times
|
|
|
IPM model over current / outdoor unit air flow blocked up
|
| Stop for over current protection
|
E5
|
blink 5 times
|
|
|
Outdoor unit over current / ambient temperature is abominable
|
| Overload protection
|
H4
|
blink 6 times
|
|
|
Ambient temperature is abominable / heat exchanger is blocked up
|
| Stop for exhaust protection
|
E4
|
blink 7 times
|
|
|
low refrigerant / capillary blocked up / ambient temperature is abominable
|
| Stop for compressor overload protection
|
H3
|
blink 8 times
|
|
|
Compressor shell overheat / low refrigerant / capillary blocked up
|
| Stop for overpower protection
|
L9
|
blink 9 times
|
|
|
Ambient temperature is abominable
|
| Stop for IPM module protection (overheat)
|
H5
|
blink 10 times
|
|
|
IPM module overheat / outdoor unit airflow blocked up
|
| Stop for EEPROM read-write function
|
EE
|
blink 11 times
|
|
|
The EEPROM on the outdoor PCB mainboard cannot read or write
|
| Stop for low voltage protection
|
PL
|
blink 12 times
|
|
|
DC voltage is too low
|
| Stop for high voltage protection
|
PH
|
blink 13 times
|
|
|
DC voltage is too high
|
| Stop for PFC circuit over current protection
|
HC
|
blink 14 times
|
|
|
The PFC circuit over current
|
| No feedback of indoor fan motor
|
H6
|
/
|
/
|
/
|
Indoor fan is abnormal
|
| Stop for ID and OD doesn't match
|
LP
|
blink 16 times
|
|
|
The indoor unit and outdoor unit does not match
|
| Compressor frequence limit by over current protection
|
|
|
blink 1 time
|
|
Outdoor unit over current / ambient temperature is abominable
|
| Compressor frequence limit by exhaust protection
|
|
|
blink 2 times
|
|
low refrigerant / capillary blocked up / ambient temperature is abominable
|
| Compressor frequence limit by overload protection
|
|
|
blink 3 times
|
|
Ambient temperature is abominable / heat exchanger is blocked up
|
| Compressor frequence limit by anti-freezing protection
|
|
|
blink 4 times
|
|
Refrigerant leakage / indoor unit airflow blocked up / filter duty
|
| Outdoor pipe temperature sensor malfunction
|
F4
|
|
blink 5 times
|
|
Open circuit or short circuit for outdoor condenser pipe temp. sensor
|
| Outdoor ambient temperature sensor malfunction
|
F3
|
|
blink 6 times
|
|
Open circuit or short circuit for outdoor environment temp. sensor
|
| Outdoor exhaust temperature sensor malfunction
|
F5
|
|
blink 7 times
|
|
Open circuit or short circuit for outdoor gas-discharge pipe temp. sensor
|
| The indoor temp. reach to operate compressor (normal)
|
|
|
blink 8 times
|
|
Part of normal operation / Compressor preparing to run
|
| Compressor frequence limit by IPM protection
|
|
|
blink 11 times
|
|
IPM module overheat / outdoor unit airflow blocked up
|
| Compressor frequence limit by over power protection
|
|
|
blink 13 times
|
|
Ambient temperature is abominable
|
| Indoor ambient temperature sensor malfunction
|
F1
|
|
|
|
Open circuit or short circuit for indoor environment temp. sensor
|
| Indoor tube temperature sensor malfunction
|
F2
|
|
|
|
Open circuit or short circuit for indoor environment pipe temp. sensor
|
| Stop for communication malfunction
|
E6
|
|
|
off
|
Communication line failure / main PCB failure / interfere source / connect line wrong
|
| Communication is normal
|
|
|
|
blink 1 time
|
Communication is normal
|
| Jumper cap malfunction protection
|
C5
|
|
|
|
The jumper misfit the main board
|
| No feedback from outdoor fan motor
|
|
|
blink 14 times
|
|
|
| High pressure protection
|
E1
|
|
blink 16 times
|
|
|
| Note: The lamps blink 0.5s on, 0.5s off. There is a 2s off interval between error codes.
|
