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108 Outdoor Unit
Display Title Cause of Error
Outdoor unit related error
4 2
1
Master Outdoor Unit Low Pressure
Sensor Fault
Master Outdoor Unit Low Pressure Sensor open or short
2
Slave1 Outdoor Unit Low Pressure
Sensor Fault
Slave1 Outdoor Unit Low Pressure Sensor open or short
3
Slave2 Outdoor Unit Low Pressure
Sensor Fault
Slave2 Outdoor Unit Low Pressure Sensor open or short
4 3
1
Master Outdoor Unit High Pressure
Sensor Fault
Master Outdoor Unit High Pressure Sensor open or short
2
Slave1 Outdoor Unit High Pressure
Sensor Fault
Slave1 Outdoor Unit High Pressure Sensor open or short
3
Slave2 Outdoor Unit High Pressure
Sensor Fault
Slave2 Outdoor Unit High Pressure Sensor open or short
4 4
1
Master Outdoor Unit Air Temperature
Sensor Fault
Master Outdoor Unit Air Temperature Sensor open or
short
2
Slave1 Outdoor Unit Air Temperature
Sensor Fault
Slave1 Outdoor Unit Air Temperature Sensor open or
short
3
Slave2 Outdoor Unit Air Temperature
Sensor Fault
Slave2 Outdoor Unit Air Temperature Sensor open or
short
4 5
1
Master Outdoor Unit Heat Exchanger
Temperature Sensor (Front side) Fault
Master Outdoor Unit Heat Exchanger Temperature
Sensor(Front side) open or short
2
Slave1 Outdoor Unit Heat Exchanger
Temperature Sensor (Front side) Fault
Slave1 Outdoor Unit Heat Exchanger Temperature
Sensor (Front side) open or short
3
Slave2 Outdoor Unit Heat Exchanger
Temperature Sensor (Front side) Fault
Slave2 Outdoor Unit Heat Exchanger Temperature
Sensor(Front side) open or short
4 6
1
Master Outdoor Unit Suction Temperature
Sensor Fault
Master Outdoor Unit Suction Temperature Sensor open
or short
2
Slave1 Outdoor Unit Suction Temperature
Sensor Fault
Slave1 Outdoor Unit Suction Temperature Sensor open
or short
3
Slave2 Outdoor Unit Suction Temperature
Sensor Fault
Slave2 Outdoor Unit Suction Temperature Sensor open
or short
4 7
1
Master Outdoor Unit Constant Speed Compressor1
Discharge Temperature Sensor Fault
Master Outdoor Unit Constant Speed Compressor1
Discharge Temperature Sensor open or short
2
Slave1 Outdoor Unit Constant Speed Compressor1
Discharge Temperature Sensor Fault
Slave1 Outdoor Unit Constant Speed Compressor1
Discharge Temperature Sensor open or short
3
Slave2 Outdoor Unit Constant Speed Compressor1
Discharge Temperature Sensor Fault
Slave2 Outdoor Unit Constant Speed Compressor1
Discharge Temperature Sensor open or short
4 8
1
Master Outdoor Unit Constant Speed Compressor2
Discharge Temperature Sensor Fault
Master Outdoor Unit Constant Speed Compressor 2
Discharge Temperature Sensor open or short
2
Slave1 Outdoor Unit Constant Speed Compressor2
Discharge Temperature Sensor Fault
Slave1 Outdoor Unit Constant Speed Compressor 2
Discharge Temperature Sensor open or short
3
Slave2 Outdoor Unit Constant Speed Compressor2
Discharge Temperature Sensor Fault
Slave2 Outdoor Unit Constant Speed Compressor 2
Discharge Temperature Sensor open or short
4 9
1
Master Outdoor Unit Faulty IPM
Temperature Sensor
Master Outdoor Unit IPM Temperature Sensor short/open
2
Slave1 Outdoor Unit Faulty IPM
Temperature Sensor
Slave1 Outdoor Unit IPM Temperature Sensor short/open
3
Slave2 Outdoor Unit Faulty IPM
Temperature Sensor
Slave2 Outdoor Unit IPM Temperature Sensor short/open
Test Run
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