msz-gc35va

10-3. Instruction of troubleshootingStartIndoor unitoperates.Outdoor unitdoesn'toperate.Indoor unit operates.Outdoor unit doesn'toperate normally.Indoor unitdoesn't receivethe signal fromremote controller.OPERATION INDICATORlamp on the indoor unit isflashing on and off.Outdoor unitoperates onlyin Test Runoperation.wOutdoor unitdoesn'toperateeven inTest Runoperation.wUnit doesn'toperatenormaloperation inCOOL orHEAT mode.Indoor unitoperates, whenEMERGENCYOPERATIONswitch is pressed.Indoor unitdoesn't operate,whenEMERGENCYOPERATIONswitch is pressed.If blinking of OPERATIONINDICATOR lamp cannot bechecked, it can be checked withfailure mode recall function.w"Test Run operation" means theoperation within 30 minutes afterEMERGENCY OPERATION switchis pressed.Check roomtemperaturethermistor.Refer to 10-7."Test pointdiagram andvoltage".Refer to"How to checkinverter/compressor".Refer to"Check ofR.V. coil".Refer to 10-6.B"Check ofremote controllerand indoorelectronic controlP.C. board".1. Check indoor / outdoorconnecting wire.(Check if the poweris supplied to theindoor unit.)2. Refer to 10-6.C"Check of indoorP.C. board and indoorfan motor".Refer to outdoor unit service manual.All lampsFlash on and offat 0.5-secondintervalsCause:Indoor unit• The horizontalvane is notinstalledcorrectly.Upper lampFlash on and offat 0.5-secondintervalsCause:Indoor/Outdoor unit• Mis-wiringor troubleof serial signalUpper lamp2-time flashCause:Indoor unit• Trouble ofroom temperature/indoor coilthermistorUpper lamp3-time flashCause:Indoor unit• Trouble ofindoor fanmotorUpper lamp4-time flashCause:Indoor unit• Trouble ofindoor unitcontrolsystemUpper lamp5-time flashCause:Outdoor unit• OutdoorpowersystemabnormalityUpper lamp6-time flashCause:Outdoor unit• Trouble ofthermistorin outdoorunitUpper lamp7-time flashCause:Outdoor unit• Trouble ofoutdoorcontrolsystemUpper lamp14-time flashCause:Outdoor unit• OtherabnormalityRefer to 10-6.E "Check ofinstallation ofthe horizontalvane".Refer to 10-6.D "How tocheck ofmis-wiringand serialsignal error".Check roomtemperaturethermistorand indoorcoil thermistor.Refer to 10-7."Test pointdiagram andvoltage".Refer to 10-6.A "Check ofindoor fanmotor".Replace theindoorelectroniccontrolP.C. board.Refer to"How to checkinverter/compressor".Refer to"Check ofoutdoorthermistors".Replace theinverter P.C.board orthe outdoorelectroniccontrol P.C.board.Check"Flow chart ofthe detailedoutdoor unitfailure moderecall function."17