Gree GRS-CQ8.0Pd/NaEK Service Manual page 5

4.1 Diagnosis Flowchart of Driving of Single-phase Unit and Three-phase Unit ............... 116
5 Daily Maintenance and Repair.............................................................................................. 121
5.1 Daily Maintenance ...................................................................................................... 121
5.2 Troubleshooting.......................................................................................................... 122
5.3 Repair ........................................................................................................................ 122
5.3.1 Key Components .............................................................................................. 122
5.3.2 Charging and Discharging of Refrigerant .......................................................... 124