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Outdoor Unit Inverter Compressor
2
9
1
Over Current
Outdoor Unit Inverter Compressor
3
2
1
High Discharge Temperature
High Pressure of Outdoor Unit
3
4
1
Low Pressure of Outdoor Unit
3
5
1
3
6
1
Low pressure ratio
Outdoor Unit Inverter Compressor
4
0
1
CT Sensor Fault
Outdoor Unit Inverter Compressor
4
1
1
Discharge Temperature Sensor Fault
Outdoor Unit Low Pressure
4
2
1
Sensor Fault
Outdoor Unit High Pressure
4
3
1
Sensor Fault
Outdoor Unit Air Temperature
4
4
1
Sensor Fault
Outdoor Unit Suction Temperature
4
6
1
Sensor Fault
Defective IPM Temperature
4
9
1
Sensor
5
0
1
ODU 3phase power omission error
Excessive capacity of indoor units
5
1
1
Communication error : inverter
5
2
1
PCB ' Main PCB
Communication error : indoor unit
5
3
1
' main PCB of outdoor unit
Wrong connection of 3Φ power
supply cable (Reverse direction /
5
4
1
missing phase)
Communication error : inverter
5
7
1
PCB ' Main PCB
Inverter PCB EEPROM error
6
0
1
Outdoor Unit Fan Lock
6
7
1
PFC CT Sensor Error of Outdoor
7
1
1
Unit
Instant Over Current(Peak) of
7
3
1
Outdoor Unit PFC
Outdoor Unit Fan CT Sensor Error
7
5
1
Outdoor Unit Fan DC Link High
7
6
1
Voltage Error
Outdoor Unit Fan Over Current
7
7
1
Error
64
Outdoor Unit
Title
Outdoor Unit Inverter Compressor Fault OR Drive
Fault
System is turned off by outdoor unit Inverter
Compressor High Discharge Temperature
System is turned off by excessive increase of high
pressure of outdoor unit
System is turned off by excessive decrease of low
pressure of outdoor unit
Pressure ratio is under limit
Outdoor Unit Inverter Compressor CT Sensor open or
short
Outdoor Unit Inverter Compressor Discharge
Temperature Sensor open or short
Outdoor Unit Low Pressure Sensor open or short
Outdoor Unit High Pressure Sensor open or short
Outdoor Unit Air Temperature Sensor open or short
Outdoor Unit Suction Temperature Sensor open or
short
Disconnection or short circuit on IPM temperature sen-
sor of the outdoor unit
Omitting one or more of R, S, T input power
Excessive connection of indoor units compared to
capacity of outdoor unit
Failing to receive inverter signal at main PCB of
Outdoor Unit
Failing to receive indoor unit signal at main PCB of out-
door Unit.
Wrong connection of 3Φ power supply cable
(Reverse direction / missing phase)
Restriction of Outdoor Unit (Inverter PCB)
Check EEPROM checksum error when resetting power
Restriction of Outdoor Unit
Outdoor Unit PFC CT Sensor open or short
Instant Over Current(Peak) of Outdoor Unit PFC
Outdoor Unit Fan CT Sensor open or short
Outdoor Unit Fan DC Link High Voltage Error
Outdoor Unit Fan Current is over 5A
Cause of Error
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