Johnson Controls YICM012B21S User Manual

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SM-18003
- Table of Contents -
3. Troubleshooting.....................................................................................................................3-1
3.1 InitialTroubleshooting.....................................................................................................................3-2
3.1.1 CheckingElectricalWiringandPowerSupply.......................................................................3-2
3.1.2 LocationofPrintedCircuitBoards(PCBs).............................................................................3-6
3.1.3 CheckingRotarySwitchandDIPSwitchSettings.................................................................3-7
3.1.4 CheckingWiredController.....................................................................................................3-9
3.1.5 CheckingUsing7-SegmentDisplay.......................................................................................3-15
3.1.6 CheckingAlarmCodeHistory................................................................................................3-15
3.1.7 EmergencyOperation............................................................................................................3-15
3.2 TroubleshootingProcedures...........................................................................................................3-16
3.2.1 AlarmCodeTable...................................................................................................................3-17
3.2.2 TroubleshootingUsingAlarmCodes......................................................................................3-18
3.2.3 AbnormalitiesofDevices........................................................................................................3-33
3.3 ProceduresforChecking.................................................................................................................3-45
3.3.1 Self-CheckingofPCBsusingWiredController......................................................................3-45
3.3.2 Self-CheckingofWiredController..........................................................................................3-45
3.4 TestRun..........................................................................................................................................3-46
3.4.1 TestRunUsingWiredController............................................................................................3-47
3.4.2 TestRunfromOutdoorUnitSide...........................................................................................3-49
3.4.3 CheckingtheTestRun...........................................................................................................3-49
3.4.4 CheckListforRefrigerantSystem.........................................................................................3-50
3.4.5 ResetforAccumulatedOperationTimeofCompressor1-2(cUJ1-cUJ2).............................3-50

Johnson Controls YICM012B21S Specifications

General

Brand	Johnson Controls
Model	YICM012B21S
Category	Air Conditioner
Language	English