SERVICE MANUAL
Mod
el: HF50CM23NW/HF71CM33NW
2
Issue 2014-04-12
Rev.
Ref1404S005V0
Contents
Chapter 1 General Information ............................................................................................................. 3
1-1. General Guidelines ........................................................................................................................ 3
1-2. Insulation Test ................................................................................................................................ 3
1-3. How to read this Service Manual ................................................................................................... 4
Chapter 2 Product Feature ................................................................................................................... 5
2-1. Specification .................................................................................................................................. 5
2-2. External views ............................................................................................................................... 6
Chapter 3 Installation, adjustments and maintenance .......................................................................... 7
3-1. Installation ..................................................................................................................................... 7
3-2 Defrosting and Draining .................................................................................................................. 7
3-3 Cleaning the Freezer ...................................................................................................................... 8
Chapter 4 Disassembly ......................................................................................................................... 9
4-1. Door assembly (Door, hinge, hinge cover) .................................................................................... 9
4-2. Compartment grill assembly .......................................................................................................... 9
4-3. Control panel assembly (Panel, cover board, knob, indicator light) ............................................. 10
4-4. Thermostat assembly .................................................................................................................. 11
Chapter 5 Control and display system ................................................................................................ 12
5-1. Control panel ............................................................................................................................... 12
5-2. Starting the Freezer ..................................................................................................................... 12
Chapter 6 System flow principle ......................................................................................................... 13
6-1. Refrigeration flow chart ................................................................................................................ 13
6-2. Refrigeration flow scenograph ..................................................................................................... 14
Chapter 7 Circuit diagram ................................................................................................................... 15
7-1. Brief principle diagram ................................................................................................................. 15
Chapter 8 Trouble shooting ................................................................................................................ 16
8-1. Normal phenomena ..................................................................................................................... 16
8-2. Abnormal phenomena.................................................................................................................. 18
