Si12-411A
Table of Contents iii
3.10 Defrost Control .......................................................................................97
3.11 Low Hz High Pressure Limit ...................................................................98
3.12 Electronic Expansion Valve Control .......................................................98
3.13 Malfunctions .........................................................................................103
3.14 Forced Operation Mode .......................................................................104
3.15 Wiring-Error Check...............................................................................105
3.16 Additional Function...............................................................................107
Part 5 System Configuration..................................................... 109
1. System Configuration..........................................................................110
1.1 Operation Instructions ..........................................................................110
2. Instruction............................................................................................111
2.1 Contents and Reference Page .............................................................111
2.2 Safety Precautions ...............................................................................112
2.3 Names of Parts.....................................................................................114
2.4 Preparation before Operation...............................................................126
2.5 AUTO · DRY · COOL · HEAT · FAN Operation ....................................129
2.6 Adjusting the Air Flow Direction ...........................................................131
2.7 POWERFUL Operation ........................................................................137
2.8 OUTDOOR UNIT SILENT Operation ...................................................138
2.9 HOME LEAVE Operation .....................................................................139
2.10 INTELLIGENT EYE Operation .............................................................141
2.11 TIMER Operation .................................................................................145
2.12 Note for Multi System ...........................................................................147
2.13 Care and Cleaning ...............................................................................149
2.14 Troubleshooting....................................................................................159
Part 6 Service Diagnosis........................................................... 163
1. Caution for Diagnosis..........................................................................164
1.1 Troubleshooting with the Operation Lamp ...........................................164
2. Problem Symptoms and Measures .....................................................166
3. Service Check Function ......................................................................167
4. Code Indication on the Remote Controller ..........................................168
4.1 Error Codes and Description of Fault ...................................................168
5. Troubleshooting ..................................................................................169
5.1 Indoor Units ..........................................................................................169
5.2 Outdoor Units .......................................................................................170
5.3 Indoor Unit PCB Abnormality ...............................................................171
5.4 Freeze-up Protection Control or High Pressure Control.......................172
5.5 Fan Motor or Related Abnormality .......................................................174
5.6 Thermistor or Related Abnormality (Indoor Unit)..................................177
5.7 Shutter Drive Motor / Shutter Limit Switch Abnormality .......................178
5.8 Signal Transmission Error (between Indoor and Outdoor Units)..........179
5.9 Unspecified Voltage (between Indoor and Outdoor Units) ...................180
5.10 Freeze-up Protection Control ...............................................................181
5.11 OL Activation (Compressor Overload) .................................................183
5.12 Compressor Lock .................................................................................184
5.13 DC Fan Lock ........................................................................................185
5.14 Input Over Current Detection ...............................................................186
5.15 Four Way Valve Abnormality................................................................188