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ENGLISH
Error No. of Compressor
Error No.
Error No. of Unit
Repeat
* 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)
Display Title Cause of 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
1 1 -
Communication error, Indoor unit ↔ Outdoor unit
Failing to receive signal in indoor unit
2 1 * Outdoor Unit Inverter Compressor IPM Fault Outdoor Unit Inverter Compressor Drive IPM Fault
2 2 * Inverter Board Input Over Current(RMS) of Outdoor Unit Outdoor Unit Inverter Board Input Current excess (RMS)
2 3 * Outdoor Unit Inverter Compressor DC link Low Voltage
DC charging is not performed at Outdoor Unit after starting relay turn
on.
2 4 * Outdoor Unit High Pressure Switch System is turned off by Outdoor Unit high pressure switch.
2 5 * Outdoor Unit Input Voltage High/ Low Voltage
Outdoor Unit input voltage is over 289V or below 73V(ARUB***BTE4)
Outdoor Unit input voltage is over 506V or below 414V(ARUB***DTE4)
2 6 * Outdoor Unit Inverter Compressor Start Failure
The First Start Failure by Outdoor Unit Inverter Compressor Abnor-
mality
2 9 *
Outdoor Unit Inverter Compressor Over Current Outdoor Unit Inverter Compressor Fault or Drive Fault
3 2 *
Outdoor Unit Inverter Compressor1 High Discharge Tem-
perature
Outdoor Unit Inverter Compressor1 High Discharge Temperature
3 4 *
High Pressure of Outdoor Unit High Pressure of Outdoor Unit
3 5 *
Low Pressure of Outdoor Unit Low Pressure of Outdoor Unit
36*
Outdoor Unit Low Compression Ratio Limited Outdoor Unit Low Compression Ratio Limited
40*
Outdoor Unit Inverter Compressor CT Sensor Fault Outdoor Unit Inverter Compressor CT Sensor open or short
41*
Outdoor Unit Inverter Compressor1 Discharge Tempera-
ture Sensor Fault
Outdoor Unit Inverter Compressor Discharge Temperature Sensor open
or short
42*
Outdoor Unit Low Pressure Sensor Fault Outdoor Unit Low Pressure Sensor open or short
43*
Outdoor Unit High Pressure Sensor Fault Outdoor Unit High Pressure Sensor open or short
44*
Outdoor Unit Air Temperature Sensor Fault Outdoor Unit Air Temperature Sensor open or short
45*
Outdoor Unit Heat Exchanger Temperature Sensor (Front
side) Fault
Outdoor Unit Heat Exchanger Temperature Sensor(Front side) open or
short
46*
Outdoor Unit Suction Temperature Sensor Fault Outdoor Unit Suction Temperature Sensor open or short
50*
Omitting connection of R, S, T power of Outdoor Unit Omitting connection of outdoor unit
51*
Excessive capacity of indoor units
Excessive connection of indoor units compared to capacity of Outdoor
Unit
52*
Communication error : inverter PCB ’ Main PCB
Failing to receive inverter signal at main PCB of Outdoor Unit
53*
Communication error : indoor unit ’ Main PCB of Out-
door Unit
Failing to receive indoor unit signal at main PCB of Outdoor Unit .
57 -
Communication error : Main PCB ’ inverter PCB
Failing to receive signal main PCB at inverter PCB of Outdoor Unit
Outdoor unit related error
Indoor unit related error
1,MFL69717904,영영 18. 8. 29. 영영 2:50 Page 33
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