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ENGLISH
Installation Manual 71
Test Run
Display
Error item Root cause of error
number
Excessive connection of indoor unit connection display value (Different
from outside unit)
When the inverter controller signal is not received from the master out-
side unit inverter controller
When the inverter controller signal is not received from the slave1 out-
side unit inverter controller
When the inverter controller signal is not received from the slave2 out-
side unit inverter controller
When the indoor unit control signal is not received from the master out-
side unit controller
Master outside unit 3 phase power reverse phase connection
Slave1 outside unit 3 phase power reverse phase connection
Slave2 outside unit 3 phase power reverse phase connection
Master Failing to receive inverter contoroller signal at Master Outdoor
Unit controller
Slave1 Failing to receive inverter contoroller signal at Master Outdoor
Unit controller
Slave2 Failing to receive inverter contoroller signal at Master Outdoor
Unit controller
When the dip switch(No.8) setting is different between master and
slave outside 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
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 ℃
Master outside unit inverter IGBT temperature sensor disconnection or
short circuit
Slave1 outside unit inverter IGBT temperature sensor disconnection or
short circuit
Slave2 outside unit inverter IGBT temperature sensor disconnection or
short circuit
Master outside unit static speed CT sensor disconnection or short cir-
cuit
Slave1 outside unit static speed CT sensor disconnection or short cir-
cuit
Slave2 outside unit static speed CT sensor disconnection or short cir-
cuit
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
Master outside unit inverter PCB input instant over-current (Peak)
exceeded
Slave1 outside unit inverter PCB input instant over-current (Peak)
exceeded
5 1 1
Over-capacity (Indoor unit capacity sum is
excessive) connection
5 2 1
Communication error with master outside unit
inverter controller
5 2 2
Communication error with slave1 outside unit
inverter controller
5 2 3
Communication error with slave2 outside unit
inverter controller
5 3 -
Communication error with master outside unit
controller and indoor unit
5 4 1
Master outside unit 3 phase power reverse
phase
5 4 2
Slave1 outside unit 3 phase power reverse
phase
5 4 3
Slave2 outside unit 3 phase power reverse
phase
5 7 1
Master Communication error between Master
outside unit inverter controller
5 7 2
Slave1 Communication error between Master
outside unit inverter controller
5 7 3
Slave2 Communication error between Master
outside unit inverter controller
5 9 -
Wrong setting between master and slave out-
side unit
6 0 1
Master outside unit inverter PCB EEPROM
error
6 0 2
Slave1 outside unit inverter PCB EEPROM
error
6 0 3
Slave2 outside unit inverter PCB EEPROM
error
6 2 1
Master outside unit inverter IGBT over-rise
error
6 2 2
Slave1 outside unit inverter IGBT over-rise
error
6 2 3
Slave2 outside unit inverter IGBT over-rise
error
6 5 1
Master outside unit inverter IGBT temperature
sensor error
6 5 2
Slave1 outside unit inverter IGBT temperature
sensor error
6 5 3
Slave2 outside unit inverter IGBT temperature
sensor error
7 0 1
Master outside unit static speed CT sensor
error
7 0 2
Slave1 outside unit static speed CT sensor
error
7 0 3
Slave2 outside unit static speed CT sensor
error
7 1 1
Master PFC CT Sensor Error of Master
Outdoor Unit
7 1 2
Slave1 PFC CT Sensor Error of Master
Outdoor Unit
7 1 3
Slave2 PFC CT Sensor Error of Master
Outdoor Unit
7 3 1
Master outside unit inverter PCB input instant
over-current (Peak)
7 3 2
Slave1 outside unit inverter PCB input instant
over-current (Peak)
Outside unit
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