SAMSUNG

REFRIGERATOR

FRENCH DOOR SHOWCASE

REFRIGERATOR

MODEL NAME : RF28R

MODLE CODE : RF28R7351**/AA

RF28R7351**/EM

RF28R7351**/AP

RF28R7351**/CO

RF28R7351**/ED

RF28R7351**/PE

RF28R7351**/ZS

SERVICE Manual

REFRIGERATOR

CONTENTS

1. PRECAUTIONS(SAFETY WARNINGS) ..... 5
2. PRODUCT SPECIFICATIONS ..... 9
3. DISASSEMBLY AND REASSEMBLY ..... 18
4. TROUBLESHOOTING ..... 53
5. PCB DIAGRAM ..... 99
6. WIRING DIAGRAM ..... 102
7. BLOCK DIAGRAM ..... 103
8. MODEL CODE TABLE ..... 104

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WARNING

IMPORTANT SAFETY NOTICE

The service guide is for service men with adequate backgrounds of electrical, electronic, and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or dealer cannot be responsible for the interpretation of this information.

SAMSUNG ELECTRONICS AMERICA, INC. Technical Service Guide Copyright ©2010

All rights reserved. This service guide may not be reproduced in whole or in part in any form without written permission from the SAMSUNG ELECTRONICS Company.

Contents

1. Precautions(Safety Warnings) ..... 5
2. Product Specifications ..... 9
   2-1) Introduction of Main Function ..... 9
   2-2) Specifications ..... 11
   2-3) Interior Views ..... 12
   2-4) Model Specification & Specification Chart ..... 13
   2-5) Dimensions of Refrigerator (Inches) ..... 16
   2-6) Optional Material Specification ..... 17
3. Disassembly and Reassembly ..... 18
   3-1) PRECAUTION ..... 18
   3-2) Refrigerator Door ..... 19
   3-3) Door Handle Refrigerator ..... 21
   3-4) Door Handle Freezer & Flex zone ..... 22
   3-5) Lever and Water-Dispenser ..... 23
   3-6) Glass Shelf ..... 25
   3-7) Foldable Glass Shelf ..... 25
   3-8) Vegetable & Fruit Drawers Shelf ..... 26
   3-9) Case Water Filter ..... 27
   3-10) Motor Damper ..... 29
   3-11) Water Filter (Assembly & Disassembly) ..... 30
   3-12) Auto Fill ..... 31
   3-13) Vertical Hinged Section ..... 33
   3-14) Evaporator Cover In Refrigerator ..... 35
   3-15) Evaporator In Refrigerator ..... 36
   3-16) Freezer Door ..... 37
   3-17) Convertible Door ..... 38
   3-18) Flex Zone Door ..... 39
   3-19) Ice-Maker ..... 40
   3-20) Flex Zone Light ..... 43
   3-21) Freezer Light ..... 43
   3-22) Door Switch In Freezer ..... 44
   3-23) Evaporator Cover In Freezer ..... 45
   3-24) Evaporator In Freezer ..... 46
   3-25) Comp tCooling Fan ..... 47
   3-26) COMPRESSOR ..... 49
   3-27) Machine Compartment ..... 51
   3-28) Electric Box ..... 52
4. TROUBLESHOOTING ..... 53
   4-1) Function for failure diagnosis ..... 53
   4-1-1. Test mode (manual operation / manual defrost function) ..... 53
   4-1-2. Self-diagnostic function ..... 56
   4-1-3. Display function of Load condition ..... 64
   4-1-4. DEMO MODE 1: Cooling OFF Mode setting function (North America model) ..... 67
   DEMO MODE 2: Exhibition Mode setting function (All regions except for North America) ..... 68
   4-1-5. Option setting function ..... 69
   4-1-6. Option TABLE ..... 73
   4-2) Diagnostic method according to the trouble symptom(Flow Chart) ..... 77

Contents

4-2-1. If the trouble is detected by self-diagnosis ..... 79
4-2-2. If FAN does not operate ..... 84
4-2-3. If ICE Room Fan does not operate ..... 85
4-2-4. When ICE MAKER(FF) does not operate ..... 86
4-2-5. If defrost does not operate (F,R DEF Heater) ..... 87
4-2-6. When Power is not applied ..... 88
4-2-7. When Compressor does not run (Inverter COMP) ..... 89
4-2-8. When alarm sounds continuously without stop(related with buzzer sound) ..... 90
4-2-9. When the Panel PBA does not operate normally ..... 92
4-2-10. When the Dispenser Panel PBA does not operate normally ..... 93
4-2-11. When refrigerator ROOM Lamp does not light up ..... 94
4-2-12. If ICE Water is not supplied ..... 95
4-2-13. If Cubed or Crushed Ice is not supplied ..... 96
4-2-14. If Cover Ice Route Motor(Geard Motor) is not working normally ..... 97
4-2-15. IR Sensor Trouble-Shooting ..... 98
4-2-16. LED blinking frequency depending on protecting functions ..... 99
5. PCB DIAGRAM ..... 100
5-1) PBA Layout with part position ..... 100
5-2) Connector Layout with part position (Main Board) ..... 102
6. Wiring Diagram ..... 103
7. Block Diagram ..... 104
7-1) Whole block diagram ..... 104
7-1-1. MAIN BLOCK ..... 104
8. Model code table ..... 105

1. PRECAUTIONS(SAFETY WARNINGS)

• Unplug the appliance before the changing or repairing the electric parts.

→ Be careful the electric shock.

• When exchanging the parts,