Troubleshooting Guide

Air Conditioner Service Manual
2
Content
PART Ⅰ TECHNICAL INFORMATION ..................................................................................................................................... 3
1. IMPORTANT NOTICE ..................................................................................................................................................................... 3
2. SPECIFICATIONS ........................................................................................................................................................................... 4
2.1 Specifications table .......................................................................................................................................................... 4
2.2 The relation curve of CAPACITY-TEMPERATURE ............................................................................................................... 5
2.3 The relation curve of PRESSURE-TEMPERATURE .............................................................................................................. 5
3. ELECTRIC DIAGRAM ..................................................................................................................................................................... 6
3.1 Wiring diagram ................................................................................................................................................................ 6
3.2 PCB LAOUT ..................................................................................................................................................................... 10
4. ELECTRONIC CONTROLLER INTRODUCTION ...................................................................................................................................... 12
4.1 Remote controller ........................................................................................................................................................... 13
4.2 Electronic controller ....................................................................................................................................................... 15
4.2.1 Auto mode ................................................................................................................................................................... 15
4.2.2 Cooling mode .............................................................................................................................................................. 15
4.2.3 Dry mode ..................................................................................................................................................................... 16
4.2.4 Heating mode .............................................................................................................................................................. 16
4.2.5 Fan mode .................................................................................................................................................................... 19
4.2.6 Timer ........................................................................................................................................................................... 19
4.2.7 Sleeping mode ............................................................................................................................................................. 19
4.2.8 Emergency switch ........................................................................................................................................................ 19
4.2.9 Auto-restart function ................................................................................................................................................... 19
4.2.10 Protection .................................................................................................................................................................. 20
4.2.11 Complementary ......................................................................................................................................................... 21
PART Ⅱ INSTALLATION AND MAINTENANCE ...................................................................................................................... 22
1. NOTES FOR INSTALLATION AND MAINTENANCE ................................................................................................................................. 22
2 INSTALLATION ............................................................................................................................................................................ 30
2.1 Installation Dimension Diagram ..................................................................................................................................... 30
2.2 Accessory ........................................................................................................................................................................ 31
2.3 Tools ............................................................................................................................................................................... 31
2.4 Position ........................................................................................................................................................................... 32
2.5 Electricity and wiring ...................................................................................................................................................... 32
2.6 IDU Installation .............................................................................................................................................................. 32
2.7 ODU Installation ............................................................................................................................................................. 35
2.8 Vacuum and gas leakage test ......................................................................................................................................... 36
2.9 Final test ......................................................................................................................................................................... 36
3. MAINTENANCE ......................................................................................................................................................................... 37
3.1 Failure code .................................................................................................................................................................... 37
3.2 wifi code ......................................................................................................................................................................... 38
3.3 Trouble shooting ............................................................................................................................................................ 39
3.4 compressor inspection method ...................................................................................................................................... 62
3.5 indoor fan motor inspection method ............................................................................................................................. 62
3.6 Outdoor fan motor inspection method .......................................................................................................................... 62
4. DISASSEMBLY IDU & ODU ......................................................................................................................................................... 63
4.1. IDU Disassembly ............................................................................................................................................................ 63
4.2 ODU Assembly ................................................................................................................................................................ 67
APPENDIX ............................................................................................................................................................................ 72
APPENDIX 1 THE COMPARISON TABLE OF CELSIUS-FAHRENHEIT TEMPERATURE .......................................................................................... 72
APPENDIX 2 THE PIPE LENGTH AND GAS CHARGING ............................................................................................................................. 72
APPENDIX 3 PIPES FLARING ............................................................................................................................................................. 73
APPENDIX 4 THERMISTOR TEMPERATURE CHARACTERISTICS ..................................................................................................... 74