LG Multi V PRHR042A Installation Manual page 57

Display
Master Outdoor Unit Input Voltage High/ Low
2 5 *
Voltage
Master Outdoor Unit Inverter Compressor Start
2 6 *
Failure
Master Outdoor Unit Inverter Compressor Over
2 9 *
Current
Master Outdoor Unit Inverter Compressor1 High
3 2 *
Discharge Temperature
Master Outdoor Unit Inverter Compressor2 High
3 3 *
Discharge Temperature
3 4 * High Pressure of Master Outdoor Unit
3 5 * Low Pressure of Master Outdoor Unit
Master Outdoor Unit Inverter Compressor CT
4 0 *
Sensor Fault
Master Outdoor Unit Inverter Compressor1
4 1 *
Discharge Temperature Sensor Fault
4 2 * Master Outdoor Unit Low Pressure Sensor Fault
4 3 * Master Outdoor Unit High Pressure Sensor Fault
4 4 * Master Outdoor Unit Air Temperature Sensor Fault
Master Outdoor Unit Heat Exchanger Temperature
4 5 *
Sensor (Front side) Fault
Master Outdoor Unit Suction Temperature Sensor
4 6 *
Fault
Master Outdoor Unit Inverter Compressor2
4 7 *
Discharge Temperature Sensor Fault
Master Outdoor Unit Faulty IPM Temperature
4 9 *
Sensor
Omitting connection of R, S, T power of Master
5 0 *
Outdoor Unit
5 1 * Excessive capacity of indoor units
Communication error : inverter PCB ' Main PCB
5 2 *
Communication error : indoor unit ' Main PCB of
5 3 *
Outdoor Unit
Communication error : Main PCB ' inverter PCB
5 7 *
6 0 * Inverter PCB EEPROM Error of Master Outdoor Unit
Master Outdoor Unit Inverter Heatsink High
6 2 *
Temperature
Master Outdoor Unit Inverter Heatsink Temperature
6 5 *
Sensor Fault
6 7 * Master Outdoor Unit Fan Lock
7 1 * Inverter CT Sensor Error of Master Outdoor Unit
7 5 * Master Outdoor Unit Fan CT Sensor Error
7 7 * Master Outdoor Unit Fan Over Current Error
7 9 * Master Outdoor Unit Fan Start Failure Error
8 6 * Master Outdoor Unit Main PCB EEPROM Error
8 7 * Master Outdoor Unit Fan PCB EEPROM Error
Communication Error Between Master Outdoor
1 0 4 *
Unit and Other Outdoor Unit
1 0 5 * Outdoor Unit Fan PCB Communication Error
1 0 6 * Outdoor Unit Fan IPM Fault Error
Title Cause of Error
Master Outdoor Unit input voltage is over 537 V or below 247 V
(ARUM***LTE5)
Master Outdoor Unit input voltage is over 310 V or below 143 V
(ARUM***BTE5)
Master Outdoor Unit input voltage is over 598 V or below 320 V
(ARUM***DTE5)
Master Outdoor Unit input voltage is over 776 V or below 373 V
(ARUM***CTE5)
The first start failure by Master Outdoor Unit Inverter Compressor
abnormality or Compressor locked
Master Outdoor Unit Inverter Compressor Fault or some bits in
pipe.
Master Outdoor Unit Inverter Compressor1 High Discharge
Temperature
Master Outdoor Unit Inverter Compressor2 High Discharge
Temperature
High Pressure of Master Outdoor Unit
Low Pressure of Master Outdoor Unit
Master Outdoor Unit Inverter Compressor CT Sensor open or short
Master Outdoor Unit Inverter Compressor Discharge Temperature
Sensor open or short
Master Outdoor Unit Low Pressure Sensor open or short
Master Outdoor Unit High Pressure Sensor open or short
Master Outdoor Unit Air Temperature Sensor open or short
Master Outdoor Unit Heat Exchanger Temperature Sensor(Front
side) open or short
Master Outdoor Unit Suction Temperature Sensor open or short
Master Outdoor Unit Inverter Compressor2 Discharge Temperature
Sensor open or short
Master Outdoor Unit IPM Temperature Sensor short/open
Omitting connection of Master outdoor unit
Excessive connection of indoor units compared to capacity of
Outdoor Unit
Failing to receive inverter signal at main PCB of Master Outdoor
Unit
Failing to receive indoor unit signal at main PCB of Outdoor Unit.
Failing to receive signal main PCB at inverter PCB of Master
Outdoor Unit
Access Error of Inverter PCB of Master Outdoor Unit
System is turned off by Master Outdoor Unit Inverter Heatsink High
Temperature
Master Outdoor Unit Inverter Heatsink Temperature Sensor open
or short
Restriction of Master Outdoor Unit
Inverter CT Sensor open or short of Master Outdoor Unit
Master Outdoor Unit Fan CT Sensor open or short
Master Outdoor Unit Fan Current is over 6A
The first start failure by Master Outdoor Unit Fan abnormality or
Fan locked
Communication Fail Between Master Outdoor Unit Main MICOM
and EEPROM or omitting EEPROM
Communication Fail Between Master Outdoor Unit Fan MICOM
and EEPROM or omitting EEPROM
Failing to receive Slave Unit signal at main PCB of Master
Outdoor Unit
Failing to receive fan signal at main PCB of Outdoor unit
Instant Over Current at Outdoor Unit Fan IPM
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