LG Multi V Water IV ARNU07GTU 2 Series Service Manual page 61

Display
Communication error between Master out-
1
side unit inverter controller
Communication error between Slave1 out-
2
side unit inverter controller
5 7
Communication error between Slave2 out-
3
side unit inverter controller
Communication error between Slave3 out-
4
side unit inverter controller
5 9 1
Mixing Installation of Sub Outdoor Unit
Master outside unit inverter PCB EEPROM
1
error
Slave1 outside unit inverter PCB EEPROM
2
error
6 0
Slave2 outside unit inverter PCB EEPROM
3
error
Slave3 outside unit inverter PCB EEPROM
4
error
Master outside unit inverter IGBT over-rise
1
error
Slave1 outside unit inverter IGBT over-rise
2
error
6 2
Slave2 outside unit inverter IGBT over-rise
3
error
Slave3 outside unit inverter IGBT over-rise
4
error
Master outside unit inverter IGBT tempera-
1
ture sensor error
Slave1 outside unit inverter IGBT tempera-
2
ture sensor error
6 5
Slave2 outside unit inverter IGBT tempera-
3
ture sensor error
Slave3 outside unit inverter IGBT tempera-
4
ture sensor error
PFC CT Sensor Error of Master Outdoor
1
Unit
PFC CT Sensor Error of Slave1 Outdoor
2
Unit
7 1
PFC CT Sensor Error of Slave2 Outdoor
3
Unit
PFC CT Sensor Error of Slave3 Outdoor
4
Unit
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Title
Failing to receive inverter contoroller signal at Master Outdoor
Unit controller
Failing to receive inverter contoroller signal at Slave1 Outdoor
Unit controller
Failing to receive inverter contoroller signal at Slave2 Outdoor
Unit controller
Failing to receive inverter contoroller signal at Slave3 Outdoor
Unit controller
Mixing Installation of Old Sub Outdoor Unit and New Slave
Outdoor Unit
Master outside unit inverter PCB EEPROM ACCESS error
Slave1 outside unit inverter PCB EEPROM ACCESS error
Slave2 outside unit inverter PCB EEPROM ACCESS error
Slave3 outside unit inverter PCB EEPROM ACCESS error
Master outside unit inverter IGBT when the temperature rises
above 110 ℃
Slave1 outside unit inverter IGBT when the temperature rises
above 110 ℃
Slave2 outside unit inverter IGBT when the temperature rises
above 110 ℃
Slave3 outside unit inverter IGBT when the temperature rises
above 110 ℃
Master outside unit inverter IGBT temperature sensor discon-
nection or short circuit
Slave1 outside unit inverter IGBT temperature sensor discon-
nection or short circuit
Slave2 outside unit inverter IGBT temperature sensor discon-
nection or short circuit
Slave3 outside unit inverter IGBT temperature sensor discon-
nection or short circuit
Master Outdoor Unit PFC CT Sensor open or short
Slave1 Outdoor Unit PFC CT Sensor open or short
Slave2 Outdoor Unit PFC CT Sensor open or short
Slave3 Outdoor Unit PFC CT Sensor open or short
- 61 -
Self-diagnosis function
Cause of Error
LGE Internal Use Only