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 : 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 EEP-
ROM 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 7 -
Inlet Air temperature sensor of FAU
Air temperature sensor of indoor unit is open or short
Outdoor unit related error
2 1 *
Master Outdoor Unit Inverter Com-
pressor IPM Fault
Master Outdoor Unit Inverter Compressor Drive
IPM Fault
2 2 *
Inverter Board Input Over
Current(RMS) of Master Outdoor Unit
Master Outdoor Unit Inverter Board Input Current
excess (RMS)
2 3 *
Master Outdoor Unit Inverter Com-
pressor DC link Low Voltage
DC charging is not performed at Master Outdoor
Unit after starting relay turn on.
2 4 *
Master Outdoor Unit High Pressure Switch
System is turned off by Master Outdoor Unit high pressure switch
2 5 *
Master Outdoor Unit Input Voltage
High/Low Voltage
Master Outdoor Unit input voltage is over
776V or below 373V(ARUN***CTE4)
26*
Master Outdoor Unit Inverter Com-
pressor Start Failure
The First Start Failure by Master Outdoor Unit In-
verter Compressor Abnormality
29*
Master Outdoor Unit Inverter Compressor Over Current
Master Outdoor Unit Inverter Compressor Fault OR Drive Fault
32*
Master Outdoor Unit Inverter Com-
pressor1 High Discharge Temperature
Master Outdoor Unit Inverter Compressor1 High
Discharge Temperature
33*
Master Outdoor Unit Inverter Com-
pressor2 High Discharge Temperature
Master Outdoor Unit Inverter Compressor2 High
Discharge Temperature
Self-Diagnosis Function
Error Indicator
- This function indicates types of failure in self-diagnosis and occurrence of failure for air condi-
tion.
- 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.
(* = 1:Master, 2:Slave 1, 3:Slave2)
Ex)
* Refer to the DX-Venitilation manual for DX-Venitilation error code.
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