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Display
Error item
number
Master outside unit inverter compressor CT
4 0 1
sensor error
Slave1 outside unit inverter compressor CT
4 0 2
sensor error
Slave2 outside unit inverter compressor CT
4 0 3
sensor error
Master outside unit inverter compressor dis-
4 1 1
charge temperature sensor error
Slave1 outside unit inverter compressor dis-
4 1 2
charge temperature sensor error
Slave2 outside unit inverter compressor dis-
4 1 3
charge temperature sensor error
4 2 1 Master outside unit under-voltage sensor error
4 2 2 Slave1 outside unit under-voltage sensor error
4 2 3 Slave2 outside unit under-voltage sensor error
4 3 1 Master outside unit over-voltage sensor error
4 3 2 Slave1 outside unit over-voltage sensor error
4 3 3 Slave2 outside unit over-voltage sensor error
Master outside unit air temperature sensor
4 4 1
error
Slave1 outside unit air temperature sensor
4 4 2
error
Slave2 outside unit air temperature sensor
4 4 3
error
Master outside unit heat exchange temperature
4 5 1
sensor (A) error
Slave1 outside unit heat exchange temperature
4 5 2
sensor (A) error
Slave2 outside unit heat exchange temperature
4 5 3
sensor (A) error
Master outside unit suction temperature sensor
4 6 1
error
Slave1 outside unit suction temperature sensor
4 6 2
error
Slave2 outside unit suction temperature sensor
4 6 3
error
Master outside unit static speed compressor
4 7 1
discharge temperature sensor error
Slave1 outside unit static speed compressor
4 7 2
discharge temperature sensor error
Slave2 outside unit static speed compressor
4 7 3
discharge temperature sensor error
Master outside unit Plate type heat exchanger
4 8 1
temperature sensor error
Slave1 outside unit Plate type heat exchanger
4 8 2
temperature sensor error
Slave2 outside unit Plate type heat exchanger
4 8 3
temperature sensor error
Master outside unit IGBT temperature sensor
4 9 1
error
Slave1 outside unit IGBT temperature sensor
4 9 2
error
Slave2 outside unit IGBT temperature sensor
4 9 3
error
5 0 1 Master outside unit 3 phase power missing
5 0 2 Slave1 outside unit 3 phase power missing
Root cause of error
Master outside unit inverter compressor current detection (CT) sensor
disconnection or short circuit
Slave1 outside unit inverter compressor current detection (CT) sensor
disconnection or short circuit
Slave2 outside unit inverter compressor current detection (CT) sensor
disconnection or short circuit
Master outside unit inverter compressor discharge temperature sensor
disconnection or short circuit
Slave1 outside unit inverter compressor discharge temperature sensor
disconnection or short circuit
Slave2 outside unit inverter compressor discharge temperature sensor
disconnection or short circuit
Master outside unit under-voltage sensor disconnection or short circuit
Slave1 outside unit under-voltage sensor disconnection or short circuit
Slave2 outside unit under-voltage sensor disconnection or short circuit
Master outside unit over-voltage sensor disconnection or short circuit
Slave1 outside unit over-voltage sensor disconnection or short circuit
Slave2 outside unit over-voltage sensor disconnection or short circuit
Master outside unit air temperature sensor disconnection or short cir-
cuit
Slave1 outside unit air temperature sensor disconnection or short cir-
cuit
Slave2 outside unit air temperature sensor disconnection or short cir-
cuit
Master outside unit heat exchange temperature sensor (A) disconnec-
tion or short circuit
Slave1 outside unit heat exchange temperature sensor (A) disconnec-
tion or short circuit
Slave2 outside unit heat exchange temperature sensor (A) disconnec-
tion or short circuit
Master outside unit suction temperature sensor disconnection or short
circuit
Slave1 outside unit suction temperature sensor disconnection or short
circuit
Slave2 outside unit suction temperature sensor disconnection or short
circuit
Master outside unit static speed compressor discharge temperature
sensor disconnection or short circuit
Slave1 outside unit static speed compressor discharge temperature
sensor disconnection or short circuit
Slave2 outside unit static speed compressor discharge temperature
sensor disconnection or short circuit
Master outside unit Plate type heat exchanger temperature sensor dis-
connection or short circuit
Slave1 outside unit Plate type heat exchanger temperature sensor dis-
connection or short circuit
Slave2 outside unit Plate type heat exchanger temperature sensor dis-
connection or short circuit
Master out side unit IGBT temperature sensor disconnection or short
circuit
Slave1 out side unit IGBT temperature sensor disconnection or short
circuit
Slave2 out side unit IGBT temperature sensor disconnection or short
circuit
Master outside unit power line phase missing
Slave1 outside unit power line phase missing
Test Run
Installation Manual 73
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