SiENBE05-722_A
iii Table of Contents
Part 5 Operation Manual ............................................................. 49
1. System Configuration............................................................................50
2. Operation Manual..................................................................................51
2.1 Remote Control ......................................................................................51
2.2 Auto Dry Cool Heat Fan Operation ........................................................52
2.3 Adjusting the Airflow Direction................................................................54
2.4 POWERFUL Operation ..........................................................................56
2.5 OUTDOOR UNIT QUIET Operation.......................................................57
2.6 HOME LEAVE Operation .......................................................................58
2.7 TIMER Operation ...................................................................................60
Part 6 Service Diagnosis............................................................. 62
1. Caution for Diagnosis............................................................................63
1.1 Troubleshooting with LED ......................................................................63
2. Problem Symptoms and Measures .......................................................64
2.1 ARC433 Series.......................................................................................65
3. Troubleshooting ....................................................................................68
3.1 Error Codes and Description ..................................................................68
3.2 Indoor Unit PCB Abnormality .................................................................69
3.3 Freeze-up Protection Control or Heating Peak-cut Control....................70
3.4 Fan Motor (AC Motor) or Related Abnormality.......................................72
3.5 Thermistor or Related Abnormality (Indoor Unit)....................................73
3.6 Signal Transmission Error (between Indoor Unit and Outdoor Unit) ......74
3.7 Unspecified Voltage (between Indoor Unit and Outdoor Unit) ...............75
3.8 Outdoor Unit PCB Abnormality...............................................................76
3.9 OL Activation (Compressor Overload) ...................................................77
3.10 Compressor Lock ...................................................................................78
3.11 DC Fan Lock ..........................................................................................79
3.12 Input Overcurrent Detection ...................................................................80
3.13 Four Way Valve Abnormality..................................................................81
3.14 Discharge Pipe Temperature Control.....................................................83
3.15 High Pressure Control in Cooling ...........................................................84
3.16 Compressor System Sensor Abnormality ..............................................85
3.17 Position Sensor Abnormality ..................................................................86
3.18 DC Voltage / Current Sensor Abnormality..............................................88
3.19 Thermistor or Related Abnormality (Outdoor Unit).................................89
3.20 Electrical Box Temperature Rise............................................................91
3.21 Radiation Fin Temperature Rise ............................................................94
3.22 Output Overcurrent Detection ................................................................97
3.23 Refrigerant Shortage ..............................................................................99
3.24 Low-voltage Detection or Over-voltage Detection................................101
4. Check ..................................................................................................103
4.1 How to Check .......................................................................................103
Part 7 Removal Procedure ........................................................ 112
1. Indoor Unit...........................................................................................113
1.1 Removal of Air Filter / Front Grille ........................................................113
1.2 Removal of Front Panel........................................................................116
1.3 Removal of Horizontal Blade................................................................118
1.4 Removal of Signal Receiver Unit / Swing Motor...................................119
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