Table of Contents
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Part 5 Operation Manual ............................................................. 50
1. System Configuration............................................................................51
2. Operation Manual..................................................................................52
Part 6 Service Diagnosis............................................................. 63
1. Troubleshooting with LED .....................................................................64
2. Problem Symptoms and Measures .......................................................65
3. Service Check Function ........................................................................66
4. Troubleshooting ....................................................................................69
5. Check ..................................................................................................104
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2.1 Remote Controller ..................................................................................52
2.2 AUTO · DRY · COOL · HEAT · FAN Operation ......................................53
2.3 Adjusting the Airflow Direction................................................................55
2.4 POWERFUL Operation ..........................................................................57
2.5 OUTDOOR UNIT QUIET Operation.......................................................58
2.6 HOME LEAVE Operation .......................................................................59
2.7 TIMER Operation ...................................................................................61
1.1 Indoor Unit..............................................................................................64
1.2 Outdoor Unit ...........................................................................................64
3.1 ARC433 Series.......................................................................................66
4.1 Error Codes and Description ..................................................................69
4.2 Indoor Unit PCB Abnormality .................................................................70
4.3 Freeze-up Protection Control or Heating Peak-cut Control....................71
4.4 Fan Motor (AC Motor) or Related Abnormality.......................................73
4.5 Thermistor or Related Abnormality (Indoor Unit)....................................74
4.7 Unspecified Voltage (between Indoor Unit and Outdoor Unit) ...............76
4.8 Outdoor Unit PCB Abnormality...............................................................77
4.9 OL Activation (Compressor Overload) ...................................................78
4.10 Compressor Lock ...................................................................................79
4.11 DC Fan Lock ..........................................................................................80
4.12 Input Overcurrent Detection ...................................................................81
4.13 Four Way Valve Abnormality..................................................................82
4.14 Discharge Pipe Temperature Control.....................................................84
4.15 High Pressure Control in Cooling ...........................................................85
4.16 Compressor System Sensor Abnormality ..............................................86
4.17 Position Sensor Abnormality ..................................................................87
4.18 DC Voltage / Current Sensor Abnormality..............................................89
4.19 Thermistor or Related Abnormality (Outdoor Unit).................................90
4.20 Electrical Box Temperature Rise............................................................92
4.21 Radiation Fin Temperature Rise ............................................................95
4.22 Output Overcurrent Detection ................................................................98
4.23 Refrigerant Shortage ............................................................................100
4.24 Low-voltage Detection or Over-voltage Detection................................102
5.1 Electronic Expansion Valve Check.......................................................104
5.2 Four Way Valve Performance Check ...................................................105
5.3 Thermistor Resistance Check ..............................................................106
5.4 Installation Condition Check.................................................................107
5.5 Discharge Pressure Check...................................................................107
5.6 Outdoor Fan System Check .................................................................108
SiBE05-722_B
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Table of Contents
Troubleshooting
