LG ARUB115BT2 Installation Manual - Page 76

Test Run Outdoor unit related error Display Title Cause of Error 1 Master Outdoor Unit Input Voltage Master Outdoor Unit input voltage is over 487V or 25 High/ Low Voltage below 270V 2 slave Outdoor Unit Input Voltage slave Outdoor Unit input voltage is over 487V or below High/ Low Voltage 270V 1 Master Outdoor Unit Inverter 26 Compressor Start Failure 2 slave Outdoor Unit Inverter Compressor Start Failure The First Start Failure by Master Outdoor Unit Inverter Compressor Abnormality The First Start Failure by slave Outdoor Unit Inverter Compressor Abnormality 1 Master Outdoor Unit Inverter DC 28 link High Voltage 2 slave Outdoor Unit Inverter DC link High Voltage System is turned off by Master outdoor unit DC Voltage Over Charging System is turned off by slave Outdoor unit DC Voltage Over Charging 1 Master Outdoor Unit Inverter 29 Compressor Over Current 2 slave Outdoor Unit Inverter Compressor Over Current Master Outdoor Unit Inverter Compressor Fault OR Drive Fault slave Outdoor Unit Inverter Compressor Fault OR Drive Fault 1 Master Outdoor Unit Inverter Compressor High Discharge 32 Temperature slave Outdoor Unit Inverter 2 Compressor High Discharge Temperature System is turned off by Master outdoor unit Inverter Compressor High Discharge Temperature System is turned off by slave Outdoor unit Inverter Compressor High Discharge Temperature Master Outdoor Unit Constant 1 Speed Compressor High 33 Discharge Temperature slave Outdoor Unit Constant 2 Speed Compressor High Discharge Temperature System is turned off by Master Outdoor Uunit Constant Speed High Discharge Temperature System is turned off by slave Outdoor Unit Constant Speed High Discharge Temperature High Pressure of Master Outdoor System is turned off by excessive increase of high 1 Unit pressure of Master outdoor unit 34 High Pressure of slave Outdoor 2 Unit System is turned off by excessive increase of high pressure of slave outdoor unit 1 Low Pressure of Master Outdoor Unit 35 2 Low Pressure of slave Outdoor Unit System is turned off by excessive decrease of low pressure of Master outdoor unit System is turned off by excessive decrease of low pressure of slave outdoor unit 1 Master Outdoor Unit Inverter Compressor CT Sensor Fault 40 2 slave Outdoor Unit Inverter Compressor CT Sensor Fault Master Outdoor Unit Inverter Compressor CT Sensor open or short slave Outdoor Unit Inverter Compressor CT Sensor open or short Master Outdoor Unit Inverter 1 Compressor Discharge Temperature Sensor Fault 41 slave Outdoor Unit Inverter 2 Compressor Discharge Temperature Sensor Fault Master Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or short slave Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or short 1 Master Outdoor Unit Low Pressure Master Outdoor Unit Low Pressure Sensor open or Sensor Fault short 42 2 slave Outdoor Unit Low Pressure Sensor Fault slave Outdoor Unit Low Pressure Sensor open or short 76 Outdoor Unit