Samsung AS12HPCN Service Manual

Alignment and AdjustmentsSamsung Electronics3-43-1-3 Indoor Unit Fan Motor Error1. Checklist :1) Is the indoor unit fan motor properly connected with the connector (CN72)?2) Is the AC voltage correct?3) Is HALL IC in indoor fan motor properly connected with the connector (CN44)?4) Is the running capacitor (CR71) properly connected with PCB board?2. Troubleshooting procedureAfter unplugging out the power cord shouldbe reconnected within 5 seconds.Does the OPERATION lamp blink?Does the Solid State Relay(SS71) work properly?Is the supply voltage of the fan motor sufficient?Test rod locationPCB CN72 ConditionAbout AC180VNormalvoltagepin #3 and #5 Fan operatingYesYesYesYesNoNoNo Check as in the procedure "No power".PCB isout of order. PCB should be replaced.Replace MotorFan-CapacitorFan motor should be replaced.Fan motor is out of order.Motor Fan-Capacitor is out of orderTest rod location+ -SS71-SS71- 12VNormalVoltageMicom isout of order. Micom should be replacedError Mode LAMP 7-segment DisplayIndoor Unit Fan Motor Malfunction