Panasonic R410A Service Manual

Also see for R410A: Installation instructions Service manual Installation instructions Installation instructions

Contents

Panasonic R410A Service Manual Manual pdf 78 page image

Mini VRF SYSTEMTrouble Diagnosis5 - 21235461. Contents of Remote Controller Switch Alarm DisplayRemote controller isdetecting error signal fromindoor unit.Indoor unit is detecting errorsignal from outdoor unit.Improper setting of indoor unitor remote controller.During auto address setting,number of connected unitsdoes not correspond tonumber set.When turning on the powersupply, number of connectedunits does not correspond tonumber set.(Except R.C. address is “0.”)Indoor unit communicationerror of group control wiring.Improper setting.<>E04E08<>E12E15E16E20E25E18L04L05L06L07L08<>Indoor unit is detecting error signal from remote controller (and system controller).Error in receiving serial communication signal.(Signal from main indoor unit in case of group control)Ex: Auto address is not completed.Error in transmitting serial communication signal.Error in receiving serial communication signal.When turning on the power supply, the number of connectedindoor units does not correspond to the number set. (Except R.C.address is “0.”)Indoor unit address setting is duplicated.Remote controller address connector (RCU. ADR) is duplicated.(Duplication of main remote controller)Starting auto address setting is prohibited.Error in auto address setting. (Number of connected indoor unitsis less than the number set)Error in auto address setting. (Number of connected indoor unitsis more than the number set)Error of outdoor unit address setting.Error of main indoor unit in receiving serial communication signalfrom sub indoor units.Duplication of main indoor unit address setting in group control.Duplication of outdoor R.C. address setting.Group control wiring is connected to individual control indoor unit.Indoor unit address is not set.Capacity code of indoor unit is not set.There are 2 or more indoor unitscontrollers which have operationmode priority in 1 refrigerant circuit.Priority set remote controllerNon-priority set remote controllerError of the outdoor unit in receiving serial communication signalfrom the indoor unit.This alarm message shows that the auto address connector CN100is shorted while other RC line is executing auto address operation.No indoor unit is connected during auto address setting.SerialcommunicationerrorsMis-settingProtective device in indoorunit is activated.<><><>Thermal protector in indoor unit fan motor is activated.Improper wiring connections of ceiling panel.Float switch is activated.Activation ofprotectivedeviceContinuedThis alarm message shows when the indoor unit for multiple-use isnot connected to the outdoor unit.Capacity code of outdoor unit is not set.L02L10L184-way valve operation failureON:OperationStandbyfor heatingBlinking: OFF:Possible cause of malfunctionWirelessremote controllerreceiver displayWiredremotecontroldisplayTimer