SiBE12-712 TroubleshootingService Diagnosis 1994. Troubleshooting4.1 Error Codes and Description+: Displayed only when system-down occurs.Code Indication Description ReferencePageSystem 00 Normal —U0+ Insufficient gas 230U2 Over-voltage detection / low-voltage detection 232U4 Outdoor unit PCB abnormality or signal transmission circuit abnormality 234UA Unspecified voltage (between indoor and outdoor units) 233UH Anti-icing function in other rooms 233IndoorUnit A1 Indoor unit PCB abnormality 200A5 Freeze-up protection control or high pressure control 201A6 Fan motor or relatedabnormalityAC motor (Wall : FTK(X)S-C, ATK(X)S-D series, Duct, Floor /Ceiling) 203DC motor (Wall : FTK(X)S-D, ATK(X)S-E series, FTXG-E,ATXG-E series, Floor) 204C4 Heat exchanger temperature thermistor abnormality 206C7 Front Panel Open / Close Fault 207C9 Room temperature thermistor abnormality 206OutdoorUnit A5 Anti-icing function 208E5+ OL activation (compressor overload) 210E6+ Compressor lock 211E7 DC fan lock 212E8 Input over current detection 213F3 Discharge pipe temperature control 215F6 High pressure control in cooling 216H0 Compressor sensor system abnormality 218H6 Position sensor abnormality 218H8 DC voltage / DC current sensor abnormality 221H9 Outdoor air thermistor or related abnormality 222J3 Discharge pipe temperature thermistor or related abnormality 222J6 Heat exchanger temperature thermistor or related abnormality 222J8 Liquid pipe temperature thermistor or related abnormality 222J9 Gas pipe temperature thermistor or related abnormality 222L3 Electrical box temperature rise 224L4 Radiation fin temperature rise 226L5 Output over current detection 228P4 Radiation fin thermistor or related abnormality 222
