Service manual

SiENBE12-522A
iv Table of Contents
Part 5
System Configuration121
1. System Configuration..........................................................................122
1.1 Operation Instructions ..........................................................................122
2. Instruction............................................................................................123
2.1 Manual Contents and Reference Page ................................................123
2.2 Safety Precautions ...............................................................................124
2.3 Names of Parts.....................................................................................126
2.4 Preparation before Operation...............................................................144
2.5 AUTO · DRY · COOL · HEAT · FAN Operation ....................................147
2.6 Adjusting the Air Flow Direction ...........................................................149
2.7 POWERFUL Operation ........................................................................159
2.8 OUTDOOR UNIT SILENT Operation ...................................................160
2.9 ECONO Operation ...............................................................................161
2.10 HOME LEAVE Operation .....................................................................162
2.11 INTELLIGENT EYE Operation .............................................................164
2.12 TIMER Operation .................................................................................170
2.13 Note for Multi System ...........................................................................172
2.14 Care and Cleaning ...............................................................................174
2.15 Troubleshooting ...................................................................................191
Part 6
Service Diagnosis197
1. Caution for Diagnosis..........................................................................198
1.1 Troubleshooting with Operation Lamp .................................................198
2. Problem Symptoms and Measures .....................................................200
3. Service Check Function ......................................................................201
4. Code Indication on the Remote Controller ..........................................204
4.1 Error Codes and Description of Fault ...................................................204
5. Troubleshooting ..................................................................................205
5.1 Indoor Units ..........................................................................................205
5.2 Outdoor Units .......................................................................................206
5.3 Indoor Unit PCB Abnormality ...............................................................207
5.4 Freeze-up Protection Control or High Pressure Control.......................208
5.5 Fan Motor or Related Abnormality .......................................................210
5.6 Thermistor or Related Abnormality (Indoor Unit)..................................213
5.7 Shutter Drive Motor / Shutter Limit Switch Abnormality .......................214
5.8 Signal Transmission Error (between Indoor and Outdoor Units)..........215
5.9 Unspecified Voltage (between Indoor and Outdoor Units) ...................216
5.10 Freeze-up Protection Control ...............................................................217
5.11 OL Activation (Compressor Overload) .................................................219
5.12 Compressor Lock .................................................................................220
5.13 DC Fan Lock ........................................................................................221
5.14 Input Over Current Detection ...............................................................222
5.15 Four Way Valve Abnormality................................................................224
5.16 Discharge Pipe Temperature Control...................................................226
5.17 High Pressure Control in Cooling .........................................................227
5.18 Position Sensor Abnormality ................................................................229
5.19 CT or Related Abnormality ...................................................................230