Installation
55
55
Display
Error item
Root cause of error
number
Master oudoor unit power line phase missing
Slave1 oudoor unit power line phase missing
Slave2 oudoor unit power line phase missing
Excessive connection f indoor unit connection display value
(Different from outside unit)
When the inverter controller signal is not received from the master outside unit
inverter controller
When the inverter controller signal is not received from the slave1 outside unit
inverter controller
When the inverter controller signal is not received from the slave2 outside unit
inverter controller
When the indoor uint control signal is not received from the master outside unit
inverter 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 oudoor unit inverter PCB EEPROM ACCESS error
Slave1 oudoor unit inverter PCB EEPROM ACCESS error
Slave2 oudoor unit inverter PCB EEPROM ACCESS error
Master outside unit static speed CT sensor disconnection or short circuit
Slave1 outside unit static speed CT sensor disconnection or short circuit
Slave2 outside unit static speed CT sensor disconnection or short circuit
Master outside unit inverter PCB input instant over-current (Peak) exceeded
Slave1 outside unit inverter PCB input instant over-current (Peak) exceeded
Slave2 outside unit inverter PCB input instant over-current (Peak) exceeded
When the master outside unit inverter PCB input current is different
When the slave1 outside unit inverter PCB input current is different
When the slave2 outside unit inverter PCB input current is different
Communication error between master outside unit master MICOM and EEP-
ROM or EEPROM missing
Communication error between slave1 outside unit master MICOM and EEP-
ROM or EEPROM missing
Communication error between slave2 outside unit master MICOM and EEP-
ROM or EEPROM missing
When signal from slave outside unit is not received from master outside unit
master MICOM
When signal from slave outside unit is not received from slave1 outside unit
master MICOM
When signal from slave outside unit is not received from slave2 outside unit
master MICOM
1 Master outside unit 3 phase power missing
5
0
2 Slave1 outside unit 3 phase power missing
3 Slave2 outside unit 3 phase power missing
5
1
-
Over-capacity
(Indoor unit capacity sum is excessive) connection
1
Communication error with master outside unit
inverter contrller
5
2
2
Communication error with Slave1 outside unit
inverter contrller
3
Communication error with slave2 outside unit
inverter contrller
5
3
-
Communication error with master outside unit con-
trller and indoor unit
1 Master outside unit 3 phase power reverse phase
5
4
2 Slave1 outside unit 3 phase power reverse phase
3 Slave2 outside unit 3 phase power reverse phase
1 Master outside unit inverter PCB EEPROM error
6
0
2 Slave1 outside unit inverter PCB EEPROM error
3 Slave2 outside unit inverter PCB EEPROM error
1 Master outside unit static speed CT sensor error
7
0
2 Slave1 outside unit static speed CT sensor error
3 Slave2 outside unit static speed CT sensor error
1
Master outside unit inverter PCB input instant
over-current (Peak)
7
3
2
Slave1 outside unit inverter PCB input instant
over-current (Peak)
3
Slave2 outside unit inverter PCB input instant
over-current (Peak)
1
Master outside unit inverter PCB phase imbalance
7
4
2
Slave1 outside unit inverter PCB phase imbalance
3
Slave2 outside unit inverter PCB phase imbalance
1 Master outside unit master PCB EEPROM error
8
6
2 Slave1 outside unit master PCB EEPROM error
3 Slave2 outside unit master PCB EEPROM error
1
Communication error between master outside unit
and outside unit
1 0 4 2
Communication error between slave1 outside unit
and outside unit
3
Communication error between slave2 outside unit
and outside unit
Outside unit
