Table 7.5 Check code for compressor
Check code
1L01
1L1* or 1L2* protection occurs 3 times in 60 minutes
1L11
Instantaneous overcurrent protection for phase current
1L12
Overcurrent protection for phase current continues for more than 30
1L1E
Electronic hardware overcurrent protection
seconds
1L2E
Inverter module over temperature protection
1L33
Bus voltage drop protection
1L43
The current sampling bias is abnormal
1L45
Compressor code mismatch
1L46
IPM protection
1L47
Inverter module type mismatch
1L4E
EEPROM error
1L51
Compressor motor stepping fault
1L52
Compressor lock protection
1L5E
Startup failure
1L65
IPM short circuit
1L66
FCT test fault
1L6E
Compressor motor phase loss protection
1L71
The upper switch in U-phase inverter circuit is open circuit
1L76
The lower switch in U-phase inverter circuit is open circuit
1Lb7
Pressure safety diagnostic module abnormal
1LbE
High pressure switch protection
1LbF
Software certification module failure
Table 7.6 Check code for fan motor
Check code
xJ01
xJ1* or xJ2* protection occurs 10 times in 60 minutes
xJ11
Instantaneous overcurrent protection for phase current
xJ12
Overcurrent protection for phase current continues for more than 30 seconds
xJ1E
Electronic hardware overcurrent protection
xJ2E
Inverter module overtemperature protection
xJ33
Bus voltage drop protection
xJ43
The current sampling bias is abnormal
xJ4E
EEPROM error
xJ51
Motor stepping fault
xJ52
Motor lock protection
xJ5E
Startup failed
xJ6E
Motor phase loss protection
xJBJ
Software certification module failure
Note: "x" is the outdoor unit address number or the motor number.
Table 7.7 Status code
Status code
d0
Oil return running
df
Defrost running
d11
Outdoor ambient temperature exceeds the upper limit in Heating mode
d12
Outdoor ambient temperature exceeds the lower limit in Heating mode
d13
Outdoor ambient temperature exceeds the upper limit in Cooling mode
d14
Outdoor ambient temperature exceeds the lower limit in Cooling mode
d31
Refrigerant amount judgment: no result
d32
Refrigerant amount judgment: significantly overcharge
d33
Refrigerant amount judgment: slightly overcharge
d34
Refrigerant amount judgment: normal
d35
Refrigerant amount judgment: slightly insufficient
d36
Refrigerant amount judgment: significantly insufficient
d37
Indoor unit connected to system is not common indoor unit
d38
Too low proportion of running indoor units
d39
Failed to detect refrigerant amount during backup
d41
Indoor unit power failure
d42
Communication error between the outdoor unit and the expansion function board
Indoor unit electronic expansion valve is controlled with HyperLink function
Description
Description
Description
Manual reset
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Manual reset
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Manual reset
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
V.1