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ENGLISH
Error No. of Compressor
Error No.
Error No. of Unit
Repeat
Display
Title
Cause of Error
Indoor unit related error
0
1
-
Air temperature sensor of indoor unit
Air temperature sensor of indoor unit is open or short
0
2
-
Inlet pipe temperature sensor of indoor unit
Inlet pipe temperature sensor of indoor unit is open or short
0
3
-
Communication error : wired remote controller
↔
indoor unit
Failing to receive wired remote controller signal in indoor unit PCB
0
4
-
Drain pump
Malfunction of drain pump
0
5
-
Communication error : outside unit
↔
indoor unit
Failing to receive outside unit signal in indoor unit PCB
0
6
-
Outlet pipe temperature sensor of indoor unit
Outlet pipe temperature sensor of indoor unit is open or short
0
9
-
Indoor EEPROM Error
In case when the serial number marked on EEPROM of Indoor unit is 0 or
FFFFFF
1
0
-
Poor fan motor operation
Disconnecting the fan motor connector/Failure of indoor fan motor lock
Outside unit
related error
2
1
1
Outdoor Unit Inverter Compressor IPM Fault
Outdoor Unit Inverter Compressor Drive IPM Fault
2
2
1
Inverter Board Input Over Current(RMS) of Outdoor
Unit
Outdoor Unit Inverter Board Input Current excess (RMS)
2
3
1
Outdoor Unit Inverter Compressor DC link Low Voltage
DC charging is not performed at Outdoor Unit after starting relay turn on.
2
4
1
Outdoor Unit High Pressure Switch
System is turned off by Outdoor Unit high pressure switch.
2
5
1
Outdoor Unit Input Voltage High/ Low Voltage
Outdoor Unit input voltage is over 487V or below 270V
2
6
1
Outdoor Unit Inverter Compressor Start Failure
The First Start Failure by Outdoor Unit Inverter Compressor Abnormality
2
9
1
Outdoor Unit Inverter Compressor Over Current
Outdoor Unit Inverter Compressor Fault OR Drive Fault
3
2
1
Outdoor Unit Inverter Compressor1 High Discharge
Temperature
Outdoor Unit Inverter Compressor1 High Discharge Temperature
3
4
1
High Pressure of Outdoor Unit
High Pressure of Outdoor Unit
3
5
1
Low Pressure of Outdoor Unit
Low Pressure of Outdoor Unit
3
6
1
Outdoor Unit Low Compression Ratio Limited
Outdoor Unit Low Compression Ratio Limited
4
0
1
Outdoor Unit Inverter Compressor CT Sensor Fault
Outdoor Unit Inverter Compressor CT Sensor open or short
4
1
1
Outdoor Unit Inverter Compressor1 Discharge
Temperature Sensor Fault
Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or
short
4
2
1
Outdoor Unit Low Pressure Sensor Fault
Outdoor Unit Low Pressure Sensor open or short
4
3
1
Outdoor Unit High Pressure Sensor Fault
Outdoor Unit High Pressure Sensor open or short
4
4
1
Outdoor Unit Air Temperature Sensor Fault
Outdoor Unit Air Temperature Sensor open or short
4
5
1
Outdoor Unit Heat Exchanger Temperature Sensor
(Front side) Fault
Outdoor Unit Heat Exchanger Temperature Sensor(Front side) open or
short
4
6
1
Outdoor Unit Suction Temperature Sensor Fault
Outdoor Unit Suction Temperature Sensor open or short
* Refer to the Indoor manual for some Indoor Error code.
Self-Diagnosis Function
Error Indicator
- This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.
- Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outside unit control board as shown
in the table.
- If more than two troubles occur simultaneously, lower number of error code is first displayed.
- After error occurrence, if error is released, error LED is also released simultaneously.
Error Display
1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number.
Ex)
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