Daikin VRV R-407C PLUS Series Service Manual

Contents

Daikin VRV R-407C PLUS Series Service Manual Manual pdf 136 page image

SiE 00-07 Troubleshooting by Remote ControllerTroubleshooting R-407C PLUS Series 1252.6 Remote Controller Self-Diagnosis FunctionThe remote controller switches are equipped with a self diagnosis function so that more appropriatemaintenance can be carried out. If a malfunction occurs during operation, the operation lamp, malfunctioncode and display of malfunctioning unit No. let you know the contents and location of the malfunction.When there is a stop due to malfunction, the contents of the malfunction given below can be diagnosed bya combination of operation lamp, INSPECTION display of the liquid crystal display and display ofmalfunction code. It also lets you know the unit No. during group control.Malfunctioncode Operationlamp Inspectiondisplay Unit No. Malfunction contents PageReferedIndoorUnit A0 9 9 9 Error of external protection device 128A1 9 9 9 PC board defect 128A1 8 7 9 PC board defect 128A3 9 9 9 Malfunction of drain level control system (33H) 129A6 9 9 9 Fan motor lock 130A7 8 7 9 Malfunction of swing flap motor (M1S) 131A9 9 9 9 Malfunction of moving part of electronic expansion valve(Y1E) 132AF 8 7 9 Drain level above limit 133AH 9 9 9 Malfunction of air filter maintenance —AJ 9 9 9 Malfunction of capacity determination device 134C4 9 9 9 Malfunction of thermistor (R2T) for liquid pipe (looseconnection, disconnection, short circuit, failure) 134C5 9 9 9 Malfunction of thermistor (R3T) for gas pipes (looseconnection, disconnection, short circuit, failure) 135C9 9 9 9 Malfunction of thermistor (R1T) for air inlet (looseconnection, disconnection, short circuit, failure) 135CJ 8 8 8 Malfunction of thermostat sensor in remote controller 136OutdoorUnit E0 9 9 9 Actuation of safety device 136E1 9 9 9 PC board defect 137E1 8 7 9 PC board defect 137E3 9 9 9 Actuation of high pressure switch 137E4 9 9 9 Actuation of low pressure sensor 138E9 9 9 9 Malfunction of moving part of electronic expansion valve(Y1E) 139F3 9 9 9 Abnormal discharge pipe temperature 140H3 8 7 9 High pressure switch failure —H4 9 9 9 Actuation of low pressure switch —H9 9 9 9 Malfunction of thermistor (R1T) for outdoor air (looseconnection, disconnection, short circuit, failure) 141H9 8 7 9 Malfunction of thermistor (R1T) for outdoor air (looseconnection, disconnection, short circuit, failure) 141J1 9 9 9 Malfunction of pressure sensor —J3 9 9 9 Malfunction of discharge pipe thermistor (R3T) (looseconnection, disconnection, short circuit, failure) 142J3 8 7 9 Malfunction of discharge pipe thermistor (R3T) (looseconnection, disconnection, short circuit, failure) 142J5 9 9 9 Malfunction of thermistor (R4T) for suction pipe (looseconnection, disconnection, short circuit, failure) 143