York HIDS006B21S - Page 12

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SM-18001-rev.1
- 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.....................................................................................................3-10
3.1.5 CheckingUsing7-SegmentDisplay.......................................................................................3-16
3.1.6 CheckingAlarmCodeHistory................................................................................................3-16
3.1.7 EmergencyOperation............................................................................................................3-16
3.2 TroubleshootingProcedures...........................................................................................................3-17
3.2.1 AlarmCodeTable...................................................................................................................3-18
3.2.2 TroubleshootingUsingAlarmCodes......................................................................................3-19
3.2.3 AbnormalitiesofDevices........................................................................................................3-35
3.3 ProceduresforChecking.................................................................................................................3-47
3.3.1 Self-CheckingofPCBsusingWiredController......................................................................3-47
3.3.2 Self-CheckingofWiredController..........................................................................................3-47
3.4 TestRun..........................................................................................................................................3-48
3.4.1 TestRunUsingWiredController............................................................................................3-49
3.4.2 TestRunfromOutdoorUnitSide...........................................................................................3-51
3.4.3 CheckingtheTestRun...........................................................................................................3-51
3.4.4 CheckListforRefrigerantSystem.........................................................................................3-52
3.4.5 ResetforAccumulatedOperationTimeofCompressor1-2(cUJ1-cUJ2).............................3-52