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SERVICE MANUAL
Model: HA10TG20SW/S/B
2
Issue 2009-7-24
Rev. Ref0907S005V0
Contents
Chapter 1 General Information ....................................................................................................................... 3
1-1. General Guidelines .................................................................................................................................. 3
1-2. Insurance Test ......................................................................................................................................... 3
1-3. How to read this Service Manual ............................................................................................................. 4
Chapter 2 Product Feature ............................................................................................................................. 5
2-1. Specifications ........................................................................................................................................... 5
2-2.Compressor Parameter ............................................................................................................................ 6
2-3. Fan Parameter ......................................................................................................................................... 7
2-4.Defrosting Heater Parameter .................................................................................................................... 7
2-5. External views .......................................................................................................................................... 8
2-6. Function Schedule ................................................................................................................................... 8
Chapter 3 Disassembly ................................................................................................................................... 9
3-1. FRZ Air duct disassembly ........................................................................................................................ 9
3-2. REF air duct assembly disassembly ...................................................................................................... 10
3-3.Door disassembly ................................................................................................................................... 12
Chapter 4 System flow principle ................................................................................................................... 13
4-1. Refrigeration flow chart .......................................................................................................................... 13
4-2.Flow of cold air ........................................................................................................................................ 14
Chapter 5 Circuit diagram ............................................................................................................................. 15
5-1. Brief principle diagram ........................................................................................................................... 15
5-2. Control PCB diagram ............................................................................................................................. 16
5-3.Defrosting Principle ................................................................................................................................. 17
5-4. Sensor location ...................................................................................................................................... 17
5-5.PCB Test ................................................................................................................................................. 20
Chapter 6 Trouble shooting ........................................................................................................................... 21
6-1. Poor cooling ........................................................................................................................................... 21
6-2. No defrosting ......................................................................................................................................... 22
