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REFRIGERATOR
BOTTOM MOUNT FREEZER
MODEL NAME : RF4287HARS
RF4287HAPN
RF4287HAWP
RF4287HABP
MODEL CODE : RF4287HARS/XAA
RF4287HAPN/XAA
RF4287HAWP/XAA
RF4287HABP/XAA
RF4287HARS/XAC
REFRIGERATOR CONTENTS
1. PRECAUTIONS(SAFETY WARNINGS) 6
2. PRODUCT SPECIFICATIONS 10
3. DISASSEMBLY AND REASSEMBLY 27
4. TROUBLESHOOTING 56
5. EXPLODED VIEW & PARTS LIST 105
6. PCB DIAGRAM 122
7. WIRING DIAGRAM 127
8. SCHEMATIC DIAGRAM 131
For the latest parts information, Please access to our service web site
( North America : http://service.samsungportal.com)
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) 6
2. Product Specifications 10
2-1) Introduction of main function 11
2-2) Specifications 13
2-3) Interior Views 14
2-4) Model Specification &Specification Chart 15
2-5) Dimensions of Refrigerator (Inches) 18
2-6) Optional Material Specification 19
2-7) Refrigerant Route in Refrigeration cycle 20
2-7-1.Principle of freezeer 21
2-7-2.Operation theory of refrigeration cycle components 22
2-7-3.Refrigeration Cycle Type 25
2-8) Cooling Air Circulation 26
3. Disassembly and Reassembly 27
3-1) PRECAUTION 28
3-2) Refrigerator Door 29
3-3) Door Handle Freezer 31
3-4) Door Handle Freezer & Flex zone 32
3-5) Refrigerator Light 33
3-6) Cover-Display & Water-Dispenser 33
3-7) Water-Dispenser 34
3-8) Glass Shelf 35
3-9) Foldable Glass Shelf 36
3-10) Vegetable & Fruit Drawers Shelf 36
3-11) Case Water 37
3-12) Case Water Filter 38
3-13) Water Tank 39
3-14) Motor Damper 41
3-15) Water Filter (Assembly & Disassembly) 42
3-16) Vertical Hinged Section 43
3-17) Evaporator Cover In Refrigerator 44
3-18) Evaporator In Refrigerator 45
3-19) Freezer Door 46
3-20) Convertible Door 47
3-21) Flex Zone Door 48
3-22) Ice-Maker 49
3-23) Flex Zone Light 50
3-24) Freezer Light 50
3-25) Side Light 51
3-26) Door Switch In Freezer 51
3-27) Evaporator Cover In Freezer 52
3-28) Evaporator In Freezer 52
3-29) Machine Compartment 53
3-30) Electric Box 55
4. TROUBLESHOOTING 56
4-1) Function for failure diagnosis 57
4-1-1. Test mode (manual operation / manual defrost function) 57
4-1-2. Display function of Communication error 58
4-1-3. Self-diagnostic function 59
4-1-4. Display function of Load condition 62
4-1-5. Exhibition mode setting function 63
4-1-6. Option setting function 64
4-1-7. Option TABLE 66
4-2) Diagnostic method according to the trouble symptom(Flow Chart) 67
4-2-1. If the trouble is detected by self-diagnosis 69
4-2-2. If FAN does not operate 80
Contents
4-2-3. If ICE Room Fan does not operate 81
4-2-4. If FAN does not operate (Flex Room - FAN) 82
4-2-5. If Ice Maker does not operate 83
4-2-6. If defrost does not operate (F,R DEF Heater) 84
4-2-7. If Power is not supplied 85
4-2-8. If compressor does not operate 86
4-2-9. When alarm sounds continuously without stop(related with buzzer sound) 88
4-2-10. If Mid Drawer Panel PCB does not work normally 90
4-2-11. When refrigerator ROOM Lamp does not light up 91
4-2-12. If ICE Water is not supplied 92
4-2-13. If Cubed or Crushed Ice is not supplied 93
4-2-14. If Cover Ice Route Motor(Geard Motor) is not working normally 94
4-2-15. If Inverter PCB Power is not supplied 95
4-2-16. LED blinking frequency depending on protecting functions 96
Spm internal diode voltage 97
Inverter controller board connector location 98
Inverter pcb circuit diagram 99
4-3-1. inrush current protecting circuit 100
4-3-2. power source(hybrid ic) 100
4-3-3. location sensing resistance area 101
4-3-4. sensing current area 101
4-3-5. comp operating signal area 102
4-3-6. bootstrap charging area 102
5. Exploded View & PARTS LIST 103
5-1) Freezer 104
5-2) Refrigerator 106
5-3) Cabinet 109
5-4) Disassembly of Door Refrigerator L 112
5-5) Disassembly of Door Refrigerator R 113
5-6) Disassembly of Door freezert 116
5-7) Disassembly of Flex Zone Door 118
6. PCB DIAGRAM 120
6-1) PCB Layout with part position 121
6-2) PCB Layout with part position (Inverter Board) 122
6-3) Connector Layout with part position (Main Board) 123
6-3-1. RF4287HA** 123
6-4) Connector Layout with part position (Inverter Board) 124
6-4-1. RF4287HA** 124
7. WIRING DIAGRAM 125
7-1) Model : RFG295AA**[BETTER] 125
7-2) Model : RF4287AA**[BEST] 126
7-3) Model : RFG299AA**[7" LCD] 127
7-4) Model : RFG294AA**[SEARS] 128
8. SCHEMATIC DIAGRAM 129
8-1) Whole block diagram 129
8-1-1. MAIN BLOCK(RF4287**) 129
8-1-2. INVERTER BLOCK(RF4287***) 130
8-2) CIRCUIT DIAGRAM 131
8-2-1. MAIN 131
8-2-2. INVERTER 132
1. PRECAUTIONS(SAFETY WARNINGS)
Unplug the appliance before the changing or repairing the electric parts.
Be careful the electric shock.
When exchanging the parts, use the correct parts.
Check the model name, rating voltage, rating current, running
temperature symbols.
When troubleshooting, connect firmly the types of harness.
Make not to be separated when some power is imposed.
Check the traces of water infiltration at the electric parts.
If there is a trace of water infiltration, exchange or tape the parts.
Check the assemble status of parts after troubleshooting.
It must be in the same assembled state when compared with the state before
disassembly.
Check the use circumstance of refrigerator.
If the refrigerator is installed at the place that is damp or wet, or
status of installation is unstable, change the installation place.
Ground the refrigerator properly
Particularly, Be sure to earth when there is a risk of an electric
leakage by humidity or wetness.
Do not use multi plugs in a plug socket at the same time.
Check if the power cord and socket is damaged, pressed, squeezed,
or fired.
If the plug or plug socket is damaged, repair or exchange it
immediately.
Do not allow consumers to repair the appliance by themselves.
Do not store other materials except the foods.
Drugs or scientific materials : difficult to keep precise temperature.
The inflammables(alcohol, benzene, ether, LP gas, butane gas etc.):
have risk of explosion.
6
PRECAUTIONS(SAFETY WARNINGS)
Read all instructions before repairing the product and follow the instructions
in order to prevent danger or property damage.
Plug out and remove all the items in regrigerator prior to repair.
CAUTION/WARNING SYMBOLS DISPLAYED SYMBOLS
means "Prohibited".
Indicates that a
danger of death
Warning or serious injury
means "Do not disassemble".
exists.
means "No contact".
means "Warning or Caution".
Indicates that a risk
of personal injury means "Unplug the unit before
Caution or material damage preforming service"
exists.
means "Earth or Ground".
Warning & Caution
Plug out to exchange the interior Use the rated components On repair, make sure that the
lamp. on the replacement. wires such as harness are
Check the correct model, rated bundled tightly.
It may cause electric shock. voltage, rated current, operating Bundle tightly wires in order not to be
temperature and so on. detached by the external force and then not
to be wetted.
comRated
pone
nts
Unplug
On repair, remove completely dust After repair, check the Check if there is any trace
or other things of housing parts, assembled state of components. indicating the permeation
harness parts, and check parts. It must be in the same assembled state of water.
Cleaning may prevent the possible fire by when compared with the state before If there is that kind of trace, change
tracking or short. disassembly. the related components or do the
necessary treatment
such as taping
using the
insulating tape.
7
PRECAUTIONS(SAFETY WARNINGS)
Please let users know following warnings & cautions in detail.
Warning & Caution
Do not allow users to put bottles or Do not allow users to store narrow Do not allow users to store
kinds of glass in the freezer. and lengthy bottles or foods in a pharmaceutical products, scientific
small multi-purpose room. materials, etc., in the refrigerator.
Freezing of the contents may inflict a wound. It may hurt you when refrigerator door is The products which need precise
opened and closed resulting in falling stuff temperature control should not be stored in
down. the refrigerator.
Do not allow users to plug Do not allow users to Do not allow users to bend the
several appliances into the same disassemble, repair or alter. power cord with excessive force
power receptable. It may cause fire or abnormal or do not have the power cord
May cause abnormal generation of operation which leads to injury. pressed by heavy article.
heat or fire. May cause fire.
Prohibition Do not
disassemble
Do not allow users to store Do not allow users to install the Make sure of the earth.
articles on the product. refrigerator in the wet place or
Opening or closing the door may cause
the place where water splashes. Be sure the product is properly grounded.
things to fall down, which may cause Deterioration of insulation of electric
injury. parts may cause electric shock or fire.
Prohibition
Earth
8
PRECAUTIONS(SAFETY WARNINGS)
FLOORING
For proper installation, this refrigerator must be
placed on a level surface of hard material that is
the same height as the rest of the flooring. This
surface should be strong enough to support a fully
loaded refrigerator, or approximately
660lbs(299kg).
MOVING
Protect the finish of the flooring. Cut a large
section of the cardboard carton and place
under the refrigerator where you are working.
When moving, be sure to pull the unit straight
out and push back in straight.
9
2. PRODUCT SPECIFICATIONS
2-1) Introduction of main function 11
2-2) Specifications 13
2-3) Interior Views 14
2-4) Model Specification &Specification Chart 15
2-5) Dimensions of Refrigerator (Inches) 18
2-6) Optional Material Specification 19
2-7) Refrigerant Route in Refrigeration cycle 20
2-7-1.Principle of freezeer 21
2-7-2.Operation theory of refrigeration cycle components 22
2-7-3.Refrigeration Cycle Type 25
2-8) Cooling Air Circulation 26
10
2. PRODUCT SPECIFICATIONS
2-1) Introduction of Main Function
A newly developed SAMSUNG bottom mount freezer in 2010 has the following
characteristics.
Surround Multi Flow
Uniform cooling for each shelf and even in corner in fresh
food compartment by centerpositioned fan and duct with
multiple flow effluences.
Twin Cooling System
The refrigerator and the freezer have two evaporators.
Given this independent system, the freezer and the
refrigerator are cooled individually as required and are,
therefore, more efficient.
Food odor from the refrigerator does not affect food in the
freezer due to separate air flow circulation.
Flex Zone
The Flex Zone is a full-width independent mid drawer with
adjustable temperature control.
Counter Height Design
The Independent Mid Drawer(Flex zone) is counter
Height to fit contemporary kitchen.
Two Lever Dispenser
Two lever dispenser can be get ice or water easily.
Secure Auto Close Door System
Secure Auto Close Door System
Cool tight doors
Energy saving
Preventing sweat on fridge doors
11
2. PRODUCT SPECIFICATIONS
Changing Items
NO Item Details New Model
Ez-Open The freezer door and Mid drawer
1 Handle (Flex zone) are more user-friendly.
System So, They come as much convenient.
The lighting helps you find groceries
Emotional
2 Easier by lighting down when you open
Lighting
Mid drawer(Flex zone) and freezer door.
- Easy rail partition can divide off 4
independent space easily.
Smart
3 - The rail partition allow you to divide
Divider
the space of the convertible room
easier.
Slim water filter is placed between
Slim Water
crispers for changing filter conveniently
4 Filtration
without removing items from
System
Refrigerator.
The display change more wider and
Touch
apply Blue LED lighting.
5 Sensor
And Touch Sensor Lighting make the
Lighting
refrigerator graceful.
12
PRODUCT SPECIFICATIONS
2-2) Specifications
ELECTRICAL SPECIFICATIONS REFRIGERATOR
Defrost Control From 12 to 22 hrs(comp.run time)
Thermo Bimetal Protector 140