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26
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
÷
in-
door unit
Failing to receive wired remote controller signal in indoor unit PCB
0 4 -
Drain pump
Malfunction of drain pump
0 5 -
Communication error : outdoor unit
÷
indoor unit
Failing to receive outdoor 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
Outdoor 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
401
Outdoor Unit Inverter Compressor CT Sensor Fault
Outdoor Unit Inverter Compressor CT Sensor open or short
411
Outdoor Unit Inverter Compressor1 Discharge Temper-
ature Sensor Fault
Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or
short
421
Outdoor Unit Low Pressure Sensor Fault
Outdoor Unit Low Pressure Sensor open or short
431
Outdoor Unit High Pressure Sensor Fault
Outdoor Unit High Pressure Sensor open or short
441
Outdoor Unit Air Temperature Sensor Fault
Outdoor Unit Air Temperature Sensor open or short
451
Outdoor Unit Heat Exchanger Temperature Sensor
(Front side) Fault
Outdoor Unit Heat Exchanger Temperature Sensor(Front side) open or
short
461
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 outdoor 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)
1,MFL67798024,영영 18. 7. 19. 영영 2:14 Page 26
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