Daikin FTKN09NMVJU Service Manual

Also see for FTK09NMVJU: Engineering data Installation manual Installation manual Service manual Operation manual

Contents

Daikin FTKN09NMVJU Service Manual Manual pdf 81 page image

SiUS041501E TroubleshootingService Diagnosis 704.8 Unspecified Voltage (Between Indoor Unit and OutdoorUnit)Error Code UAMethod of ErrorDetectionThe supply power is detected for its requirements (pair type is different from multi type) by theindoor / outdoor transmission signal.Error DecisionConditionsThe pair type and multi type are interconnected.SupposedCauses Wrong models interconnected Wrong wiring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCBTroubleshooting(R20435)CautionNOYESYESNOMatch the compatible models.OK?Correct the connection.Check the code numbers(2P012345, for example) of theindoor and outdoor unit PCBwith the Parts List.If not matched, change for thecorrect PCB.Are theconnecting wires connectedproperty?Check the combination of theindoor and outdoor unit.Be sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.