
Si04-402
Table of Contents iii
2.2 Names of Parts.......................................................................................43
2.3 Preparation before Operation.................................................................46
2.4 AUTO · DRY · COOL · HEAT · FAN Operation ......................................49
2.5 Adjusting the Air Flow Direction .............................................................51
2.6 POWERFUL Operation ..........................................................................53
2.7 OUTDOOR UNIT SILENT Operation .....................................................54
2.8 INTELLIGENT EYE Operation ...............................................................55
2.9 TIMER Operation ...................................................................................57
2.10 Care and Cleaning .................................................................................59
2.11 Troubleshooting......................................................................................62
Part 6 Service Diagnosis............................................................. 65
1. Caution for Diagnosis............................................................................66
2. Problem Symptoms and Measures .......................................................67
3. Service Check Function ........................................................................68
4. Troubleshooting ....................................................................................71
4.1 Error Codes and Description ..................................................................71
4.2 Indoor Unit PCB Abnormality .................................................................72
4.3 Freeze-up Protection Control or High Pressure Control.........................73
4.4 Fan Motor (DC Motor) or Related Abnormality.......................................75
4.5 Thermistor or Related Abnormality (Indoor Unit)....................................77
4.6 Front Panel Open / Close Fault..............................................................78
4.7 Signal Transmission Error (between Indoor and Outdoor Unit) .............79
4.8 Signal Transmission Error
(between Indoor Unit and Wired Remote Controller ) ............................80
4.9 Unspecified Voltage (between Indoor and Outdoor Units) .....................81
4.10 Outdoor Unit PCB Abnormality...............................................................82
4.11 OL Activation (Compressor Overload) ...................................................83
4.12 Compressor Lock ...................................................................................84
4.13 DC Fan Lock ..........................................................................................85
4.14 Input Over Current Detection .................................................................86
4.15 Four Way Valve Abnormality..................................................................87
4.16 Discharge Pipe Temperature Control.....................................................89
4.17 High Pressure Control in Cooling ...........................................................90
4.18 Sensor Abnormality around Compressor System ..................................92
4.19 Position Sensor Abnormality ..................................................................93
4.20 DC Voltage / Current Sensor Abnormality..............................................94
4.21 Thermistor or Related Abnormality (Outdoor Unit).................................95
4.22 Output Over Current Detection...............................................................97
4.23 Insufficient Gas.......................................................................................99
4.24 Over-voltage Detection.........................................................................101
5. Check ..................................................................................................102
5.1 How to Check .......................................................................................102
Part 7 Removal Procedure ........................................................ 109
1. Indoor Unit...........................................................................................110
1.1 Removal of Air Filter.............................................................................110
1.2 Removal of Front Grille ........................................................................112
1.3 Removal of Assembly of Open/Shut Mechanism .................................118
1.4 Removal of Lamp Cover.......................................................................122
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