Samsung AF28FVSDA N Series Service Manual

TroubleshootingSamsung Electronics 4-334-4-25 Radiator overheating errorIndoor unit displayOutdoor unit display ◎(YEL) ●(GRN) ●(RED)1. Cause of malfunction1) Faulty IPM/PFCM screw connection condition2) Problematic fan speed3) Replace ass'y control out2. Check procedureNoNoReconnect screwRe-check item E458YesYesPull out power cords for the indoor unitAnd the outdoor unitReplace ass’y control out(A new EEPROM IC must be inserted)Is the iPM/PFCM screwConnection condition satisfactory?Is the fan speed satisfactory?Detach ass’y control out coverAfter assembling the ass’y control outcover plug in the power cords of the indoor unitAnd outdoor unit and turn power onS Equipment claims must be made at a service center for the EEPROM ic.Please refer to page 4-33 for equipment code.