SiBE121135Table of Contents iv4.1 RA Indoor Unit - FTXG, FTXS, CTXS, FVXG, FVXS, FLXS,FDXS Series.........................................................................................2674.2 SA Indoor Unit - FCQG, FFQ, FHQ, FDBQ, FBQ Series .....................2674.3 Sub Codes for SA Indoor Unit ..............................................................2684.4 Outdoor Unit .........................................................................................2695. Troubleshooting for RA Indoor Unit - FTXG, FTXS, CTXS, FVXG, FVXS,FLXS, FDXS Series ............................................................................2705.1 Indoor Unit PCB Abnormality ...............................................................2705.2 Freeze-up Protection Control or Heating Peak-cut Control..................2725.3 Fan Motor or Related Abnormality .......................................................2745.4 Radiant Panel Temperature Rise, Indoor Electronic Expansion Valve(Motor Operated Valve) Abnormality, Freeze-up Protection Control(FVXG Series Only)..............................................................................2785.5 Thermistor or Related Abnormality (RA Indoor Unit)............................2805.6 Front Panel Open / Close Fault (FTXG Series Only) ...........................2815.7 Signal Transmission Error (between Indoor Unit and Outdoor Unit) ....2825.8 Unspecified Voltage (between Indoor Unit and Outdoor Unit) .............2836. Troubleshooting for SA Indoor Unit - FCQG, FFQ, FHQ, FDBQ,FBQ Series..........................................................................................2846.1 Indoor Unit PCB Abnormality ...............................................................2846.2 Drain Water Level System Abnormality................................................2856.3 Fan Motor or Related Abnormality .......................................................2876.4 Swing Motor Lock (FHQ Series Only) ..................................................2896.5 Drain System Abnormality....................................................................2906.6 Thermistor or Related Abnormality (SA Indoor Unit)............................2916.7 Remote Controller Thermistor Abnormality ..........................................2926.8 Signal Transmission Error(between Indoor Unit and Remote Controller)......................................2936.9 Signal Transmission Error(between MAIN Remote Controller and SUB Remote Controller)........2946.10 Field Setting Abnormality .....................................................................2957. Troubleshooting for Outdoor Unit........................................................2967.1 Refrigerant Shortage ............................................................................2967.2 Low-voltage Detection or Over-voltage Detection................................2987.3 Signal Transmission Error (on Outdoor Unit PCB)...............................3007.4 Unspecified Voltage (between Indoor Unit and Outdoor Unit) /Anti-icing Function in Other Rooms......................................................3017.5 Anti-icing Function................................................................................3027.6 Outdoor Unit PCB Abnormality.............................................................3047.7 OL Activation (Compressor Overload) .................................................3057.8 Compressor Lock .................................................................................3067.9 DC Fan Lock ........................................................................................3077.10 Input Overcurrent Detection .................................................................3087.11 Discharge Pipe Temperature Control...................................................3097.12 High Pressure Control in Cooling .........................................................3107.13 Compressor Sensor System Abnormality ............................................3117.14 Position Sensor Abnormality ................................................................3137.15 CT or Related Abnormality ...................................................................3157.16 Thermistor or Related Abnormality (Outdoor Unit)...............................3177.17 Electrical Box Temperature Rise..........................................................3197.18 Radiation Fin Temperature Rise ..........................................................3217.19 Output Overcurrent Detection ..............................................................323
