Daikin VRV RXYQ72XBYC Series Installation Manual

Also see for VRV RXYQ120XBYC Series: Operation manual

42EnglishMalfunction codeContents SolutionMaincodeSub codeMaster/sub 1/sub 2J7 01/02/03 Temperature sensor malfunction(R3T)-A1P (X30A)Check connection on printed circuit board or actuator.06/07/08 Temperature sensor malfunction(R7T)-A1P (X30A)Check connection on printed circuit board or actuator.18/19/20 Temperature sensor malfunction(R16T)-A7P (X15A)Check connection on printed circuit board or actuator.J8 01/02/03 Temperature sensor malfunction(R4T)-A1P (X30A)Check connection on printed circuit board or actuator.08/09/10 Temperature sensor malfunction(R5T)-A1P (X30A)Check connection on printed circuit board or actuator.J9 01/02/03 Temperature sensor malfunction(R6T)-A1P (X30A)Check connection on printed circuit board or actuator.11/12/13 Temperature sensor malfunction(R13T)-A7P (X17A)Check connection on printed circuit board or actuator.JA 06/08/10 High pressure sensor malfunction: open circuit(S1NPH)-A1P (X32A)Check connection on printed circuit board or actuator.07/09/11 High pressure sensor malfunction: short circuit(S1NPH)-A1P (X32A)Check connection on printed circuit board or actuator.JC 06/08/10 Low pressure sensor malfunction: open circuit(S1NPL)-A1P (X31A)Check connection on printed circuit board or actuator.07/09/11 Low pressure sensor malfunction: short circuit(S1NPL)-A1P (X31A)Check connection on printed circuit board or actuator.LC 14/15/16 Transmission trouble.A4P (X6A)-A1P (X28A)Check connection.19/20/21 Transmission trouble.A5P (X3A)-A4P (X41A)Check connection.24/25/26 Transmission trouble.A5P (X4A)-A6P (X3A)Check connection.33/34/35 Transmission trouble.A7P (X2A)-A1P (X20A)Check connection.P1 01/02/03 Unbalanced power supply voltage. Check if power supply is within the range.U2 01/08/11 Voltage power shortage or open power supply phase. • Check if power supply is within the range.• Correct phase order.02/09/12 Reversed or open power supply phase. • Check if power supply is within the range.• Correct phase order.U3 03 System test run not yet executed (system operationnot possible).Execute system test run.04 An error occurred during the test run. Check the piping and re-execute the test run.05 Test run aborted. Re-execute the test run.0607 Test run aborted due to communication issues. Check the communication wires and re-execute thetest run.08U4 01 Faulty wiring to Q1/Q2 or indoor- outdoor. Connect transmission wiring of indoor units to “TOIN/D UNIT (F1, F2)” and transmission wiring of otheroutdoor units to “TO OUT/D UNIT (F1, F2)”.03 Malfunction of connected indoor unit. Check the malfunction code of indoor unit and resolve it.