Panasonic Urban Multi MX1R Series Service Manual

Troubleshooting (OP: Central Remote Controller) PACD011001C2546 Troubleshooting UM Combination “MA1R Series” Using R-407C6.4 Improper Combination of Optional Controllers for Centralised ControlRemote ControllerDisplayMASupposed Causes Ñ Improper combination of optional controllers for centralised controlÑ More than one master controller is connectedÑ Defect of PC board of optional controller for centralised controlTroubleshooting(VF073)NONONOCannot be used in combinationwith a "BMS interface adaptor forindividual and unified control, forunified group". Remove them andreset the power supply for alloptional controllers for centralisedcontrol simultaneously.Schedule timer and data stationcannot be used in combination.Disconnect either the scheduletimer or data station and reset thepower supply for all optionalcontrollers for centralised controlsimultaneously.Schedule timer and parallelinterface cannot be used incombination. Disconnect eitherthe schedule timer or parallelinterface and reset the powersupply for all optional controllersfor centralised controlsimultaneously.Disconnect the schedule timer'sindividual / combined connectorand reset the power supply for alloptional controllers for centralisedcontrol simultaneously.Arrange so that the connector forsetting master control isconnected to one controller forcentralised control and reset thepower supply for all optionalcontrollers for centralised controlsimultaneously.Disconnect the connector forsetting master control from themaster controller, connect toanother optional controller forcentralized control andsimultaneously reset all optionalcontrollers for centralised controlagain. The controller connectedby the connector for settingmaster control when themalfunction is cleared is defectiveand must be replaced.Reset the power supply for alloptional controllers for centralisedcontrol simultaneously.YESYESIs the "BMSinterface adaptor forindividual and unified control,for unified group"connected?YESIs a schedule timerconnected?Arethere twoor more optionalcontrollers for centralisedcontrol connected with theconnector for settingmastercontrol?YESIs a parallel interfaceconnected?NOYESIsthe schedule timer'sindividual/combined connectorconnected?YESIs a data station connected?NONOIf the malfunction is still not cleared:CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.