资源描述：
《空调器控制器电路故障检修思路（Troubleshooting method for controller circuit of air conditioner）》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、空调器控制器电路故障检修思路（Troubleshootingmethodforcontrollercircuitofairconditioner）Firstpower,afterload,firststrongcurrent,weakcurrent,Firstindoors,thenoutdoors,firstatbothends,theninthecenter,Ifthecircuitcanbeseparatedfromtheoutdoorcircuit,themaincircuitandthecontrolcircuit,itwillmakethecircuittrouble
2、shootingsimpleandconcrete.Howtojudgeindoorandoutdoorcircuitfault:1,theairconditionerhasinputandoutputsignalline,canbeusedtojudgetheshortcircuitmethod.Suchasthemethodofairconditionercanreturntonormal,thefaultintheoutdoormachine;ifnoteliminatethefault,thefaultintheindoormachine.2,theoutdoorterm
3、inalwiringmeasurementhasnoACvoltageorDCvoltagetodeterminethefaultposition.IftheACorDCvoltagemeasurementoutsidetheterminal,thefaultintheoutdoormachine;suchasmeasurementofACorDCvoltageandthefaultintheindoorcircuit.3,thelargerpowerofthecabinetairconditionercanobservetheoutdoorcontactorwhethertop
4、ullintodeterminethefaultlocation,suchascontactorpullin,indicatingthatthefaultintheoutdoormachine;ifthereisnopull,thatthefaultintheindoormachine4.Forfaultydisplayairconditioners,faultlocationcanbeidentifiedbyobservingindoorandoutdoorfailurecodes5,fortheuseofserialcommunicationcircuitoftheairco
5、nditioner,oscilloscopecanbeusedtomeasurethewaveformofthesignallinetodeterminethelocationofthefault6,fortheheatpumptypeairconditionerisnotdefrostordefrostfrequently,mostlyforoutdoormaincontrolcircuitboardfault7,conditionscanalsobereplacedbychangingthecircuitboardtodistinguishtheoutdoormachinef
6、aultHowtojudgethefaultofcontrolandmaincircuit:1,forthecompressorfrequentswitchfault,judgefaultlocationbymeasuringtheairconditioningloadcurrentandvoltage.Suchascompressorcompressorcurrentistoolarge,thefaultinthemaincircuit;ifthecompressorcurrentisnormal,thefaultinthecontrolcircuit2,forthefault
7、offancompressordoesnotstartbyobservingtheoutdoorACcontactorisattractedtodeterminethefaultlocation.Suchasthecontactorandthecompressordoesnotwork,thefaultinthemaincircuit;ifthecontactordoesnotpullthefaultinthecontrolcircuit.Fortheinverteraircon
