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