Samsung AS07A5MA Service Manual

Also see for AS07A5MA: Service manual Owner's instructions Owner's instructions Owner's instructions Owner's instructions

Contents

16Troubleshooting (cont’d)ΙΙΙΙΙΙ2. When the Indoor Unit Fan Does Not Operate - Initial Diagnosis2. When the Indoor Unit Fan Does Not Operate - Initial Diagnosis1) 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 the indoor fan motor properly connected with the connector (CN42)?(4) Is the running capacitor (CR71) properly connected with PCB board?2) Troubleshooting procedureAfter unplugging out, the power cord shouldbe reconnected within five seconds.Does the STD lamp(Green) blink?Does the Solid State Relay(SS71) workproperly?Is the supply voltage of the fanmotor sufficient?Test rod locationPCB CN72 ConditionFan operate about AC180VNormalvoltagepin #3 and #5YESYESYESNONONOCheck as the procedure “No power”Refer to page 14Micom is abnormalPCB isabnormal Replace PCBReplace MFCReplace Fan motorFan motoris abnormal.MFC is abnormalYES-Test rod location+SS71- SS71- 12VNormalVoltage