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SETTING & TEST
44
Display
Outdoor Unit Inverter Compressor
2
3
1
DC link Low Voltage
2
4
1
Outdoor Unit High Pressure Switch
Outdoor Unit Input Voltage High/
2
5
1
Low Voltage
Outdoor Unit Inverter Compressor
2
6
1
Start Failure
Outdoor Unit Inverter DC link High
2
8
1
Voltage
Outdoor Unit Inverter Compressor
2
9
1
Over Current
Outdoor Unit Inverter Compressor
3
2
1
High Discharge Temperature
3
4
1
High Pressure of Outdoor Unit
3
5
1
Low Pressure of Outdoor Unit
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 Sensor
4
2
1
Fault
Outdoor Unit High Pressure Sensor
4
3
1
Fault
Outdoor Unit Air Temperature
4
4
1
Sensor Fault
Outdoor Unit Heat Exchanger
4
5
1
Temperature Sensor (Front side)
Fault
Outdoor Unit Suction Temperature
4
6
1
Sensor Fault
Title
DC charging is not performed at Outdoor Unit
after starting relay turn on.
System is turned off by Outdoor Unit high pres-
sure switch.
Outdoor Unit input voltage is over 487V or below
270V
The First Start Failure by Outdoor Unit Inverter
Compressor Abnormality
System is turned off by Outdoor Unit DC Voltage
Over Charging
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
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 Heat Exchanger Temperature
Sensor(Front side) open or short
Outdoor Unit Suction Temperature Sensor open
or short
Cause of Error
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