Samsung AF28FVSDA N Series Service Manual

Troubleshooting4-8 Samsung ElectronicsError Indicator Cause MeasuresProduct’s state of operationat the time of malfunction(state of main component) Method ofDiagnosisIndoorFanOutdoorFan Comp.When outside temperature is above/below operation range allowed forcooling• Inspect outside air temperature andSET installation stateOperationOffOperationOffOperationOff Page 4-27Problematic Outdoor unitFAN MOTOR• Check connecting WIRE• Check FAN MOTOR• Check Outdoor unit PBAS Because the FAN MOTOR is aBLDC MOTOR, it may malfunctionif the CONNECTOR is detached orinserted while being supplied withpower. Please take measures 1~3minutes after switching the powerOFF.OperationOffOperationOffOperationOff Page 4-28Problematic compressor maneuveroperation• Inspect Outdoor unit PBA / Inspectcompressor condition / Inspect SETinstallation conditionOperationOffOperationOffOperationOff Page 4-29Problematic Outdoor unit incomingelectric current• Inspect compressor condition /Inspect SET installation conditionOperationOffOperationOffOperationOff Page 4-30Compressor temperature overload• Inspect compressor condition /Inspect SET installation condition /Check temperature sensor WIREOperationOffOperationOffOperationOff Page 4-26Problematic compressor incomingelectric current• Inspect compressor condition /Inspect SET installation conditionOperationOffOperationOffOperationOff Page 4-29Problematic compressor operation • Inspect compressor condition /Inspect SET installation conditionOperationOffOperationOffOperationOff Page 4-29Problematic Outdoor unit controllerinternal voltage• Inspect Outdoor unit PBA /Inspect power line connectionOperationOffOperationOffOperationOff Page 4-30Problematic compressor operation• Inspect compressor condition /Inspect SET installation condition /Inspect Outdoor unit PBAOperationOffOperationOffOperationOff Page 4-31Problematic compressor electriccurrent sensor • Inspect Outdoor unit PBA OperationOffOperationOffOperationOff Page 4-29Problematic Outdoor unit controllerinternal voltage sensor • Inspect Outdoor unit PBA OperationOffOperationOffOperationOff Page 4-30EEPROM error • EEPROM loading OperationOffOperationOffOperationOff Page 4-32Problematic Outdoor unit powerfrequency• Inspect Outdoor unit PBA /Inspect power line connectionOperationOffOperationOffOperationOff Page 4-30Error Display (cont.)