Table Of Contents - Gree GUD24W2/D-D(U) Service Manual

1 Product Introduction ...................................................................................................... 3
1.1 Lists of Units .......................................................................................................................... 3
1.2 Electrical Parameters ............................................................................................................. 5
2 Control ............................................................................................................................. 6
2.1 Operation Mode ..................................................................................................................... 6
2.2 Control Mode ......................................................................................................................... 7
2.3 Functions ............................................................................................................................. 10
3 Troubleshooting ............................................................................................................ 14
3.1 Wiring Diagrams .................................................................................................................. 14
3.2 PCB Layout .......................................................................................................................... 18
3.3 Error Code ........................................................................................................................... 25
3.4 Troubleshooting ................................................................................................................... 26
3.5 Failures Not Caused by Errors ............................................................................................. 60
4 Maintenance .................................................................................................................. 62
4.1 System Diagram .................................................................................................................. 62
4.2 Connection Pipe Vacuum Pumping ...................................................................................... 62
4.3 Refrigerant Charging ............................................................................................................ 65
4.4 Maintenance of Major Components ...................................................................................... 67
4.5 Removal of Major Components ............................................................................................ 79
4.6 Explosive View and Lists of Parts ....................................................................................... 112
Appendices .................................................................................................................... 130
1 Resistance/Temperature Lists of Temperature Sensors ......................................... 130
1.1 Voltage List of 15 KΩ Temperature Sensors ....................................................................... 130
1.2 Voltage List of 20 KΩ Pipeline Temperature Sensors ......................................................... 132
1.3 Voltage List of 50 KΩ Discharge Temperature Sensors ...................................................... 134
2 Temperature/Pressure List of Refrigerant ................................................................ 137
3 Operation Tools .......................................................................................................... 137
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