Self-Diagnosis Function - LG MULTI V 5 ARUM160LTE5 Installation Manual

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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.(* = 1: Master, 2: Slave 1, 3: Slave 2, 4: Slave 3)
Ex) 1051 : Error occurrence with error number 105 at No. 1 outdoor unit (=Master unit)
In case of indoor unit error occurrence, the error number is only shown at remote controller
without 7 segment LED of outdoor unit.
Ex) CH → 01 : Error occurrence with error number 01 (at remote controller)
In case of compressor error occurrence, 7 segment LED of outdoor unit control board
will display its error number alternately with compressor number.
Ex) 213 → C23 : It means that compressor error occurred with Error No. 21 at No. 3 Outdoor unit (=Slave2)
* Refer to the DX-Venitilation manual for DX-Venitilation error code.
Display
0 1 - Air temperature sensor of indoor unit
0 2 - Inlet pipe temperature sensor of indoor unit
Communication error : wired remote controller ÷
0 3 -
indoor unit
0 4 - Drain pump
Communication error : outdoor unit ÷ indoor unit
0 5 -
0 6 - Outlet pipe temperature sensor of indoor unit
Hydro Kit Hot water storage tank Temperature
0 8 -
sensor
0 9 - Indoor EEPROM Error
1 0 - Poor fan motor operation
Communication error : Hydro Kit Indoor unit ÷
1 1 -
Inv.PCB
1 2 - Hydro Kit Inv.PCB error
Hydro Kit Solar heat piping temperature sensor
1 3 -
error
1 4 - Hydro Kit Indoor unit Flow switch error
1 5 - Hydro Kit Liquid pipe Strange overheat Error
Hydro KitIndoor unit Inlet and Outlet pipe
1 6 -
Temperature sensor Error
Hydro Kit Indoor unit Inlet pipe Temperature
sensor Error
1 7 -
Outside air Introduction duct Inlet pipe
Temperature sensor Error
Hydro Kit Indoor unit Outlet pipe Temperature
1 8 -
sensor Error
2 1 * Outdoor Unit Inverter Compressor IPM Fault
Inverter PCB Input Over Current(RMS) of Master
2 2 *
Outdoor Unit
Outdoor Unit Inverter Compressor DC Link Low or
2 3 *
High Voltage
2 4 * Outdoor Unit High Pressure Switch
2 5 * Outdoor Unit Input Voltage High/ Low Voltage
• 1 : Master outdoor unit error, 2 : salve 1 outdoor unit error
• 3 : slave2 outdoor unit error, 4 : slave3 outdoor unit error
Title Cause of Error
Air temperature sensor of indoor unit is open or short
Inlet pipe temperature sensor of indoor unit is open or short
Failing to receive wired remote controller signal in indoor unit PCB
Malfunction of drain pump
Failing to receive outdoor unit signal in indoor unit PCB
Outlet pipe temperature sensor of indoor unit is open or short
Pipe temperature sensor is open or short
In case when the serial number marked on EEPROM of
Indoor unit is 0 or FFFFFF
Disconnecting the fan motor connector / Failure of indoor
fan motor lock
Failing to receive Inv. PCB signal in indoor unit
Hydro Kit Inv.PCB error
Pipe temperature sensor is open or short
Flow switch flow detection error
Temperature sensor defective or hot water inflow
Pipe temperature sensor is open or short
Pipe temperature sensor is open or short
Pipe temperature sensor is open or short
Outdoor Unit Inverter Compressor Drive IPM Fault
Outdoor Unit Inverter PCB Input Current excess (RMS)
System is turned off by Master Outdoor Unit DC Link Low/High
Voltage.
System is turned off by Master Outdoor Unit high pressure switch.
Over 537V or below 247V (ARUM***LTE5)
Over 310V or below 143V (ARUM***BTE5)
Over 598V or below 320V (ARUM***DTE5)
Repeat
Error No. of Unit
Error No. of Compressor
Error No.