LG MULTI V IV ARNU07GTU 2 Series User Manual

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Copyright ©2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. 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. Indicates unit number.
Ex) 211 : No.21 error of master unit
213 : No.21 error of slave2
1051 : No.105 error of master unit
h Refer to the DX-Venitilation manual for DX-Venitilation error code
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 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 7 - Inlet Air temperature sensor of FAU Air temperature sensor of indoor unit is open or short
Outdoor unit related error
2 1
1 Master Outdoor Unit Inverter Compressor IPM Fault Master Outdoor Unit Inverter Compressor Drive IPM Fault
2 Slave1 Outdoor Unit Inverter Compressor IPM Fault Slave1 Outdoor Unit Inverter Compressor Drive IPM Fault
3 Slave2 Outdoor Unit Inverter Compressor IPM Fault Slave2 Outdoor Unit Inverter Compressor Drive IPM Fault
4 Slave3 Outdoor Unit Inverter Compressor IPM Fault Slave3 Outdoor Unit Inverter Compressor Drive IPM Fault
2 2
1
Inverter Board Input Over Current(RMS) of
Master Outdoor Unit
Master Outdoor Unit Inverter Board Input Current excess (RMS)
2
Inverter Board Input Over Current(RMS) of
Slave1 Outdoor Unit
Slave1 Outdoor Unit Inverter Board Input Current excess (RMS)
3
Inverter Board Input Over Current(RMS) of
Slave2 Outdoor Unit
Slave2 Outdoor Unit Inverter Board Input Current excess (RMS)
4
Inverter Board Input Over Current(RMS) of
Slave3 Outdoor Unit
Slave3 Outdoor Unit Inverter Board Input Current excess (RMS)
(repetition)
Error Compressor
Error number
Unit (1 : Master, 2 : Slave1, 3 : Slave2, 4 : Slave3)
Self-diagnosis function

LG MULTI V IV ARNU07GTU 2 Series Specifications

General

Brand	LG
Model	MULTI V IV ARNU07GTU 2 Series
Category	Air Conditioner
Language	English