ELECTRICAL WIRING
63
ENGLISH
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.
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 in-
door 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 in-
door 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 in-
door fan motor lock
Outdoor unit related error
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 487V or below
270V
* Refer to the Indoor manual for some Indoor Error code.
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