Installation
54
54
Display
Error item
Root cause of error
number
Master outside unit inverter compressor current detection (CT) sensor discon-
nection or short circuit
Slave1 outside unit inverter compressor current detection (CT) sensor discon-
nection or short circuit
Slave2 outside unit inverter compressor current detection (CT) sensor discon-
nection or short circuit
Master outside unit inverter compressor discharge temperature sensor discon-
nection or short circuit
Slave1 outside unit inverter compressor discharge temperature sensor discon-
nection or short circuit
Slave2 outside unit inverter compressor discharge temperature sensor discon-
nection or short circuit
Master outside unit under-vlotage sensor disconnection or short circuit
Slave1 outside unit under-vlotage sensor disconnection or short circuit
Slave2 outside unit under-vlotage sensor disconnection or short circuit
Master outside unit over-vlotage sensor disconnection or short circuit
Slave1 outside unit over-vlotage sensor disconnection or short circuit
Slave2 outside unit over-vlotage sensor disconnection or short circuit
Master outside unit air temperature sensor disconnection or short circuit
Slave1 outside unit air temperature sensor disconnection or short circuit
Slave2 outside unit air temperature sensor disconnection or short circuit
Master Outdoor Unit Heat Exchanger Temperature Sensor(A) Open or Short
Slave1 Outdoor Unit Heat Exchanger Temperature Sensor(A) Open or Short
Slave2 Outdoor Unit Heat Exchanger Temperature Sensor(A) Open or Short
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 Outdoor Unit Heat Exchanger Temperature Sensor(B) Open or Short
Slave1 Outdoor Unit Heat Exchanger Temperature Sensor(B) Open or Short
Slave2 Outdoor Unit Heat Exchanger Temperature Sensor(B) Open or Short
1
Master outside unit inverter compressor CT sen-
sor error
4
0
2
Slave1 outside unit inverter compressor CT sen-
sor error
3
Slave2 outside unit inverter compressor CT sen-
sor error
1
Master outside unit inverter compressor discharge
temperature sensor error
4
1
2
Slave1 outside unit inverter compressor discharge
temperature sensor error
3
Slave2 outside unit inverter compressor discharge
temperature sensor error
1 Master outside unit under-voltage sensor error
4
2
2 Slave1 outside unit under-voltage sensor error
3 Slave2 outside unit under-voltage sensor error
1 Master outside unit over-voltage sensor error
4
3
2 Slave1 outside unit over-voltage sensor error
3 Slave2 outside unit over-voltage sensor error
1 Master outside unit air temperature sensor error
4
4
2 Slave1 outside unit air temperature sensor error
3 Slave2 outside unit air temperature sensor error
1
Master Outdoor Unit Heat Exchanger
Temperature Sensor(A) Fault
4
5
2
Slave1 Outdoor Unit Heat Exchanger
Temperature Sensor(A) Fault
3
Slave2 Outdoor Unit Heat Exchanger
Temperature Sensor(A) Fault
1
Master outside unit suction temperature sensor
error
4
6
2
Slave1 outside unit suction temperature sensor
error
3
Slave2 outside unit suction temperature sensor
error
1
Master outside unit static speed compressor
discharge temperature sensor error
4
7
2
Slave1 outside unit static speed compressor
discharge temperature sensor error
3
Slave2 outside unit static speed compressor
discharge temperature sensor error
1
Master Outdoor Unit Heat Exchanger
Temperature Sensor(B) Fault
4
8
2
Slave1 Outdoor Unit Heat Exchanger
Temperature Sensor(B) Fault
3
Slave2 Outdoor Unit Heat Exchanger
Temperature Sensor(B) Fault
Outside unit