Troubleshooting by Remote Controller382.5.2 Outdoor UnitErrorcodeTroubleshootingDescription of error Description of diagnosisE3 - 01E3 - 02High pressure switchactivated (Master)Refer to the “E3” flow chart ofeach manual and make adiagnosis of the relevant unitbased on the Error code shownto the left.E3 - 03E3 - 04High pressure switchactivated (Slave 1)E3 - 05E3 - 06High pressure switchactivated (Slave 2)E3 - 07 High pressure switchactivated (Batch)E4 - 01 Low pressure error (Master) Refer to the “E4” flow chart ofeach manual and make adiagnosis of the relevant unitbased on the Error code shownto the left.E4 - 02 Low pressure error (Slave 1)E4 - 03 Low pressure error (Slave 2)E5 - 01 INV. compressor lock(Master)Refer to the “E5” flow chart ofeach manual and make adiagnosis of the relevant unitbased on the Error code shownto the left.E5 - 02 INV. compressor lock (Slave 1)E5 - 03 INV. compressor lock (Slave 2)E6 - 01 STD compressor 1 OCactivated (Master)Refer to the “E6” flow chart ofeach manual and make adiagnosis of the relevantcompressor of the relevant unitbased on the Error code shownto the left.E6 - 02 STD compressor 2 OCactivated (Master)E6 - 03 STD compressor 1 OCactivated (Slave 1)E6 - 04 STD compressor 2 OCactivated (Slave 1)E6 - 05 STD compressor 1 OCactivated (Slave 2)E6 - 06 STD compressor 2 OCactivated (Slave 2)