Daikin VRV IV-S RXTQ-TAVJU Series Service Manual

Also see for VRV IV-S Series: Installation manual Engineering data Installation and operation manual Installation and operation manual Installer and user guide

Contents

Troubleshooting by Error Code SiUS331604E221 Service Diagnosis4.56 Central Control Indicator Lamp Blinks (Two blinks)Error Code -ApplicableModelsON/OFF controllerMethod of ErrorDetectionDIII-NET communication data is used to detect the error.Error DecisionConditionsThe indoor unit has no centralized control address setNo indoor unit within the control rangeSupposedCauses The indoor unit has no centralized control address set (Group No.) Control range setting switch set incorrectly Wiring connection errorTroubleshootingNOYESNOYESNOYESUse the remote controllerto set the centralizedcontrol address for all theindoor units connectedwith the centralizedcontroller.Correctly set the controlrange setting switchand concurrently resetthe power supply of allthe centralizedcontrollers.Correct the wiring.Replace the ON/OFFcontroller PCB.CautionBe sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.Is theindoor unit centralizedcontrol address (groupNo.) set?Is thecontrol range settingswitch correctlyset?Is theconnection wiringbroken or wrong?