Display Title Cause of Error
Outdoor unit related error
2 9
1
Master outside unit inverter compressor
overcurrent
Master outside unit inverter compressor error or operating com-
ponent (IPM) error operation
2
Slave1 outside unit inverter compressor
overcurrent
Slave1 outside unit inverter compressor error or operating com-
ponent (IPM) error operation
3
Slave2 outside unit inverter compressor
overcurrent
Slave2 outside unit inverter compressor error or operating com-
ponent (IPM) error operation
4
Slave3 outside unit inverter compressor
overcurrent
Slave3 outside unit inverter compressor error or operating com-
ponent (IPM) error operation
3 2
1
Master outside unit inverter compressor dis-
charge temperature over-rise
Compressor turned off due to master outside unit inverter com-
pressor discharge temperature over-rise Flow rate insufficiency
or flow switch trouble of master outside unit
2
Slave1 outside unit inverter compressor dis-
charge temperature over-rise
Compressor turned off due to Slave1 outside unit inverter com-
pressor discharge temperature over-rise Flow rate insufficiency
or flow switch trouble of Slave1 outside unit
3
Slave2 outside unit inverter compressor dis-
charge temperature over-rise
Compressor turned off due to Slave2 outside unit inverter com-
pressor discharge temperature over-rise Flow rate insufficiency
or flow switch trouble of Slave2 outside unit
4
Slave3 outside unit inverter compressor dis-
charge temperature over-rise
Compressor turned off due to Slave3 outside unit inverter com-
pressor discharge temperature over-rise Flow rate insufficiency
or flow switch trouble of Slave3 outside unit
3 4
1
Master outside unit high pressure over-rise
Compressor turned off due to master outside unit high pressure
over-rise Flow rate insufficiency or flow switch trouble of master
outside unit
2
Slave1 outside unit high pressure over-rise
Compressor turned off due to Slave1 outside unit high pressure
over-rise Flow rate insufficiency or flow switch trouble of Slave1
outside unit
3
Slave2 outside unit high pressure over-rise
Compressor turned off due to Slave2 outside unit high pressure
over-rise Flow rate insufficiency or flow switch trouble of Slave2
outside unit
4
Slave3 outside unit high pressure over-rise
Compressor turned off due to Slave3 outside unit high pressure
over-rise Flow rate insufficiency or flow switch trouble of Slave3
outside unit
3 5
1
Master outside unit low pressure over-drop.
Compressor turned off due to master outside unit low pressure
overdrop.
2
Slave1 outside unit low pressure over-drop.
Compressor turned off due to Slave1 outside unit low pressure
overdrop.
3
Slave2 outside unit low pressure over-drop.
Compressor turned off due to Slave2 outside unit low pressure
overdrop.
4
Slave3 outside unit low pressure over-drop.
Compressor turned off due to Slave3 outside unit low pressure
overdrop.
3 6
1
Master Outside Unit Low Compression Ratio
Limited
Master Outside Unit stayed under low Compression limit for 3
minutes
2
Slave1 Outside Unit Low Compression Ratio
Limited
Slave1 Outside Unit stayed under low Compression limit for 3
minutes
3
Slave2 Outside Unit Low Compression Ratio
Limited
Slave2 Outside Unit stayed under low Compression limit for 3
minutes
4
Slave3 Outside Unit Low Compression Ratio
Limited
Slave3 Outside Unit stayed under low Compression limit for 3
minutes
Self-diagnosis function
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