Rf4287hars Manual de Servicio Nevera Samsung 4 Puertas
Rf4287hars Manual de Servicio Nevera Samsung 4 Puertas
Rf4287hars Manual de Servicio Nevera Samsung 4 Puertas
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REFRIGERATOR
BOTTOM MOUNT FREEZER
REFRIGERATOR CONTENTS
1. PRECAUTIONS(SAFETY WARNINGS) h6
4. TROUBLESHOOTING hhhhhhhh56
7. WIRING DIAGRAMhhhhhhhhh127
8. SCHEMATIC DIAGRAM hhhhhh131
For the latest parts information, Please access to our service web site
( North America : http://service.samsungportal.com)
WARNING
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)hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh6
4. TROUBLESHOOTING hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh56
4-1) Function for failure diagnosis hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh57
4-1-1. Test mode (manual operation / manual defrost function) hhhhhhhhhhhhhhhhhhhh57
4-1-2. Display function of Communication error hhhhhhhhhhhhhhhhhhhhhhhhhh58
4-1-3. Self-diagnostic function hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh59
4-1-4. Display function of Load condition hhhhhhhhhhhhhhhhhhhhhhhhhhhhh62
4-1-5. Exhibition mode setting function hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh63
4-1-6. Option setting function hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh64
4-1-7. Option TABLE hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh66
4-2) Diagnostic method according to the trouble symptom(Flow Chart) hhhhhhhhhhhhhhhhhh67
4-2-1. If the trouble is detected by self-diagnosis hhhhhhhhhhhhhhhhhhhhhhhhhh69
4-2-2. If FAN does not operate hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh80
Contents
4-2-3. If ICE Room Fan does not operate hhhhhhhhhhhhhhhhhhhhhhhhhhhhh81
4-2-4. If FAN does not operate (Flex Room - FAN) hhhhhhhhhhhhhhhhhhhhhhhhh82
4-2-5. If Ice Maker does not operate hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh83
4-2-6. If defrost does not operate (F,R DEF Heater) hhhhhhhhhhhhhhhhhhhhhhhh84
4-2-7. If Power is not supplied hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh85
4-2-8. If compressor does not operate hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh86
4-2-9. When alarm sounds continuously without stop(related with buzzer sound) hhhhhhhhhhhh88
4-2-10. If Mid Drawer Panel PCB does not work normally hhhhhhhhhhhhhhhhhhhhhh90
4-2-11. When refrigerator ROOM Lamp does not light up hhhhhhhhhhhhhhhhhhhhhh91
4-2-12. If ICE Water is not suppliedhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh92
4-2-13. If Cubed or Crushed Ice is not supplied hhhhhhhhhhhhhhhhhhhhhhhhhh93
4-2-14. If Cover Ice Route Motor(Geard Motor) is not working normally hhhhhhhhhhhhhhhh94
4-2-15. If Inverter PCB Power is not supplied hhhhhhhhhhhhhhhhhhhhhhhhhhh95
4-2-16. LED blinking frequency depending on protecting functions hhhhhhhhhhhhhhhhhh96
Spm internal diode voltage hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh97
Inverter controller board connector location hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh98
Inverter pcb circuit diagram hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh99
4-3-1. inrush current protecting circuit hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh100
4-3-2. power source(hybrid ic) hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh100
4-3-3. location sensing resistance area hhhhhhhhhhhhhhhhhhhhhhhhhhhhh101
4-3-4. sensing current areahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh101
4-3-5. comp operating signal area hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh102
4-3-6. bootstrap charging area hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh102
1. PRECAUTIONS(SAFETY WARNINGS)
Unplug the appliance before the changing or repairing the electric parts.
ª Be careful the electric shock.
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.
Unplug
On repair, remove completely dust or other After repair, check the Check if there is any trace indic
things of housing parts, harness parts, and assembled state of components. permeation of water.
check parts. It must be in the same assembled state when compared If there is that kind of trace, change th
Cleaning may prevent the possible fire by tracking or with the state before disassembly. components or do the
short. necessary treatment
using the insulating
PRECAUTIONS(SAFETY WARNINGS)
❈ Please let users know following warnings & cautions in detail.
Do not allow users to plug Do not allow users to Do not allow users to bend the
several appliances into the disassemble, repair or alter. power cord with excessive
same power receptable. It may cause fire or abnormal force or do not have the power
May cause abnormal generation operation which leads to cord pressed by heavy article.
May cause fire.
of heat or fire. injury.
Prohibition
Do not
disassembl
e
Do not allow users to Do not allow users to install the Make sure of the earth.
store articles on the refrigerator in the wet place or
product. the place where water Be sure the product is properly grounded.
Opening or closing the door may splashes.
cause things to fall down, which Deterioration of insulation of
may cause injury. electric parts may cause electric
shock or fire.
Prohibition
Earth
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.
2. PRODUCT SPECIFICATIONS
10
2. PRODUCT SPECIFICATIONS
Flex Zone
The Flex Zone is a full-width independent mid drawer with adjus
control.
11
2. PRODUCT SPECIFICATIONS
Ü Changing Items
NO Item Details New Model
Ez-Open The freezer door and Mid drawer (Flex zone) are
1 Handle more user-friendly. So, They come as much
System convenient.
12
PRODUCT SPECIFICATIONS
2-2) Specifications
ELECTRICAL SPECIFICATIONS
REFRIGERATOR
Defrost Control hhhhhhhhhhhhhhFrom 12 to 22 hrs(comp.run time) Thermo
Bimetal Protector hhhhhhhhhh140°F(60)(off) 104°F(40)(on) Defrost
Thermistor(502AT) hhhhhhhhhh F: 50°F(10)(off)
3 59°F(15)(off)
Electrical RatingAC115V 60Hz hhhhhhhhhhh11.6 Amps Maximum
Current Leakage hhhhhhhhhhhhhh0.25 mA Maximum Ground
Path Resistance hhhhhhhhhh0.1 Ohm Energy Consumption
hhhhhhhhhhhhhh562kWh/year
NO LOAD PERFORMANCE
Ambient Temperature hhhhhhhh70×(21) 90×(32)
Refrigeratorhhhhhhhhhhhhhhh34×(1)q46×(7)
34×(1)q46×(7)
Flex Zonehhhhhhhhhhhhhhhh29×(-1)~42×(5)
29×(-1)~42×(5)
Freezer hhhhhhhhhhhhhhh -8×(-22)q8×(-14)
-8×(-22)q8×(-14)
Run Time,%hhhhhhhhhhhhhh 䡽 60 䡽 80 FLEX ZONE
REFRIGERATION SYSTEM
Refrigerant Charge (R134a) hhhhhhhhhhh5.64 oz(160g)
MKV190C-L2B hhhhhhhhhhhhh1314 Btu/hr(0.385kw) Compressor
oil hhhhhhhhhhhhhhhhh Freol ǯ15c R Capillary tube(Dia, Length)
hhhhhhhhhh0.032ĉ,118ĉ NN NN F Capillary tube(Dia, Length)
hhhhhhhhhh0.032ĉ,118ĉ NN NN FREEZER
Dryer C-Fan
INSTALLATION
Clearance must be provided for air
circulation
AT TOP hhhhhhhhhhhhhhhhhhhhh2" (50mm) AT SIDES
hhhhhhhhhhhhhhhhhhh 3˰"(95mm) AT REAR hhhhhhhhhhhhhhhhhhhh
2" (50mm)
13
PRODUCT SPECIFICATIONS
Refrigerator
Interlocking switch Light Door Closer
FF Ice-Maker
Cover Eva (Light)
Right Door Bins
Dis Door Bins
Tempered
Cap Chute glass shelves
Vertical Hinged
Section Light
Slide-Shelf Quick-Space
Mid Door Bins Glass Shelf
Vegetable & Fruit Cover Veg
Drawers
Light
Water Filter
Light
Freezer
Freezer Drawer
Tilting Pocket GUARD
14
PRODUCT SPECIFICATIONS
RF4287HA **
ITEM Model
Ice & Water Dispenser with Pantry
W 35 3/4 inch (908mm)
On Cabinet 29 7/8 inch (760mm)
D W/O Handle 33 3/4 inch (858mm)
External size
With Handle 36 1/4 inch (920mm)
W/O Hinge Cap 68 1/2 inch (1740mm)
H
With Hinge Cap 69 7/8 inch (1774mm)
Total 27.98 Cu.ft (792Ɏ)
COLOR
Cabinet (Both Side) Door M
Black All Black Empire Black I
Real STS Noble STS Versailles Stainless Creamy S
White Snow White Snow White Snow Wh
Platinum STS Noble STS Stainless Platinum Creamy S
15
PRODUCT SPECIFICATIONS
Items Specification
Model RF4287HA
Model MKV190C-L2B
Compressor Starting type BLDC
Components for Freezer
F/R Fuse
Operating temperature Off: 230×(110)
16
PRODUCT SPECIFICATIONS
Items Specification
Model RF4287HA
Defrost Heater(FRE) Heated at F Defrost AC 120V, 230W
Defrost Heater(REF) Heated at R Defrost AC120V, 120W
DISPENSER Heater Interlock with French Heater AC120V, 1.6W
FRENCH Heater - AC120V, 7W
ICE Duct Heater Interlock with Defrost Heater (FRE) AC120V, 7W
Damper - DC 12V, 1W
Model 4TM445PHBYY-82
Over Load Relay Temp.ON 257 41× 125 5
Temp.OFF 156.2 48.2× 69 9
Rated Voltage AC 115V/ 60Hz
Electric Components
17
PRODUCT SPECIFICATIONS
18
PRODUCT SPECIFICATIONS
FILTER WATER-
DA29-00020B
ASSY
ASSY- PACKING
DA99-00240S
SUB
LED LMAP
DA41-00519R
CONV(FRE)
19
PRODUCT SPECIFICATIONS
1. Compressor ª Condenser ª Hot Pipe ª Back Cluster Pipe ª Dryer ª Ref Capillary Tube ª Refrigerator
Evaporator ª Freezer Evaporator ª Suction Pipe ª Compressor
2. Compressor ª Condenser ª Hot Pipe ª Back Cluster Pipe ª Dryer ª Fre Capillary Tube ª Freezer
Evaporator ª Suction Pipe ª Compressor
20
PRODUCT SPECIFICATIONS
BACK CLUSTER-PIPE
21
PRODUCT SPECIFICATIONS
¥ Condenser
1) Role: A device which radiates heat to the outside (water/air) to make liquid state for the
high temperature / high pressure gas refrigerant discharged from compressor
2) Types
A. Air-cooling Type : Condense air by circulating naturally or manually.
1) Natural Convection Type : Used for the household refrigerator which has small
condensing capacity.
2) Manual Convection Type : Circulate air manually by FAN-Motor (Large capacity)
B. Water-cooling Type : Make cooling water pass through the pipe in the condenser
(Large capacity)
Location
˝ CLUSTER heat-radiating type : All Pipes effective for radiating heat are formed in
the right/left, and front side of refrigerator with hard urethanes and radiate heat
through the whole surfaces of cabinet to ambient air.
˞Install the condenser on the outside of the product. (An old model)
˟ Make them cluster at the lower part of product and radiate heat manually by fan.
ó Radiate condensed potential heat up to liquefy completely and make change the
state without changing the gas temperature itself.
Pipe thickness
˝ Low pressure: 6.3mm ˞High pressure : 4.7mm ˟ Capillary : About 0.4-0.8mm
Condenser length (Based on 300Ɏ): 26.5 M
˝ Assistance : 5 M ˞HOT-PIPE: 6.6 M ˟ CLUSTER-PIPE: 15 M
¥ Capillary
1. Role: A device which makes low temperature and pressure refrigerant by
reducing the pressure the normal temperature / high pressure liquid refrigerant
condensed from condenser, and supply it to the evaporator.
A. To evaporate more lower temperature in case of evaporation.
B. It flows to the evaporator without back flowing to condenser, if compressor stops,
and the difference of pressure between high pressure and low pressure is small so it
is easy to operate the compressor again.
2. Outline
A. Thickness : About 0.4-0.8ßÆ
B. Length : It is changeable to low temperature and pressure (10->5ß∏/ß≤) depends on the
2M of thin and long copper pipe wall resistance.
22
PRODUCT SPECIFICATIONS
¥ Evaporator
1. Role: As the low pressure liquid refrigerant flowed from capillary absorbs heat inside of
the refrigerator, it becomes low pressure gas and refrigerate the foods.
2. Theory: The low pressure refrigerant flowed to evaporator operates cooling which
takes ambient evaporated potential heat with maintaining the evaporation up to
evaporate completely.
3.Types of Evaporator
A. ROLL-BOND Evaporator ª Direct Cooling ONE-DOOR Type
ó Rolled and adhere the 2 aluminum plate and then make refrigerant
passage. B. PIN-PIPE Type ª Indirect cooling TWO-DOOR Type
ó a small aluminum plate on the aluminum pipe to increase the cooling effect.
¥ Compressor
1. Role: It operates same as pump which pull out the subterranean water. It inhales the
low temperature and pressure refrigerant gas (flowed out) from evaporator and make
high temperature and pressure refrigerant liquid in the compressor and send it to the
condenser.
2. Type of Condenser
a. Back-and-forth motion type: A method that pistol makes back-and-forth motion
through shaft and cylinder of motor rotation and compresses. Used for household
refrigerant
b. Rotary Type: A method that inhales the refrigerant gas through the gap between the
outside of rotor electric attached on the shaft and the inside of cylinder and
compresses.
c. Centrifugal Type
3. Please insert the explanation of inverter comp operation theory.
¥ Dryer
1. Role: Absorb the moisture from the refrigerant that refrigeration cycle circulates
and eliminate the foreign substance.
2. Structure: If even some moisture is included refrigerant is impossible to circulate by
freezing the small capillary outlet, so silica gel or molecular sieve is (included and)
sealed to absorb the internal moisture, and install a minute net to eliminate the foreign
substance.
23
PRODUCT SPECIFICATIONS
.Influence of moisture
˝ Moisture precipitation m Blocked by ice
˞Refrigerant and reaction
˟ Life reduction of oil
ˠ Acceleration of oxidization
ˡ Copper plating phenomenon
ˢ Gas dissolution by the interaction of synthetic insulating material (insulator)
¥ Accumulator
1. Role : To send a pure refrigerant gas to compressor by removing completely the
refrigerant liquid from evaporator.
24
PRODUCT SPECIFICATIONS
TDM Cycle
Compressor Condenser Fre Hot-Pipe Flex Hot-Pipe
Ref Hot-Pipe Back Cluster
Connected Pipe
25
PRODUCT SPECIFICATIONS
Refrigerator
Flex Zone
Freezer
26
3-1) PRECAUTIONhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh28
3-2) Refrigerator Door hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh29
3-3) Door Handle Freezer hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh31
3-4) Door Handle Freezer & Flex zone hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh32
3-5) Refrigerator Light hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh33
3-6) Cover-Display & Water-Dispenser hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh33
3-7) Water-Dispenserhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh34
3-8) Glass Shelf hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh35
3-9) Foldable Glass Shelf hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh36
3-10) Vegetable & Fruit Drawers Shelf hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh36
3-11) Case Water hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh37
3-12) Case Water Filter hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh38
3-13) Water Tank hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh39
3-14) Motor Damper hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh41
3-15) Water Filter (Assembly & Disassembly) hhhhhhhhhhhhhhhhhhhhhhhhhhhhh42
3-16) Vertical Hinged Section hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh43
3-17) Evaporator Cover In Refrigerator hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh44
3-18) Evaporator In Refrigerator hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh45
3-19) Freezer Door hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh46
3-20) Convertible Door hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh47
3-21) Flex Zone Door hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh48
3-22) Ice-Maker hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh49
3-23) Flex Zone Light hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh50
3-24) Freezer Light hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh50
3-25) Side Light hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh51
3-26) Door Switch In Freezer hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh51
3-27) Evaporator Cover In Freezer hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh52
3-28) Evaporator In Freezer hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh52
3-29) Machine Compartment hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh53
3-30) Electric Box hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh55
27
3-1) PRECAUTION
- Required Tools
IMAGE ITEM USE
ʡ
28
29
⁰
ⁱ
Refrigerator
Door
7. With a Philips head screwdriver, remove the two
screws () attatched to the lower left and right door ⁴
hinges.
With a wrench(10mm), remove the 2 flat head screws
() attatched to the lower left and right door hinges.
Remove the lower left and right door hinges (⁴).
30
Door Handle
Fridge
31
2.Remove 4 screws
3. Lift up the handle to have the
Slider Handle () pushed back.
Door Handle
Freezer 4. After having the Slider Handle
() pushed back, screw up at the hole.
& Flex zone
32
Cover-Display
33
Cover-Display
3-7) Water-Dispenser
34
hose
Water-Dispenser
35
36
compressor cover.
1. Remove the water valve fixed by the screw.
Water Valve
37
33--1122))CCaasseeWWaatteerrFFilitlteerr
1. Remove 2 screws.
38
33--1122))CCaasseeWWaatteerrFFilitlteerr
Before disassembling the Water Tank take the
water filter() and water tray() out.
39
Water Tank
40
41
Water Filter
42
2. Unscrew 2 screws.
Vertical Hinged
Section
43
2. Unscrew 4 screws.
44
1. Remove the the housing cover by pushing
both lateral sides of the housing cover () and
pulling it out.
(Refer to the picture)
<< lllelele
eefffttt >>
<< rriiigigig
gghhtt >>
45
4. Unscrew 4 bolts.
(2 bolts each on the both sides)
46
Freezer
Door
47
4. Unscrew 4 bolts.
(2 bolts each on the both sides)
Mid drawer
48
3-22) Ice-Maker
Ice Maker
49
Freezer Light
50
Door Switch In
Freezer
51
Evaporator Cover
In 2. Lift up the evaporator cover.
Freezer
Evaporator In
Freezer
52
53
Step Valve
54
55
4. TROUBLESHOOTING
56
TROUBLESHOOTING
˝
˝
˝ Energy Saver Key + Power Cool Key are pressed simultaneously for
8 seconds, (displays are all off)
It will be changed to the test mode (manual operation) by pressing any
key
1-1) If any key is pressed once in test mode, blinks "FF-1" on the display and it indicates the
refrigerator has entered the manual operation. At this moment, buzzer beeps as an alarm.
1-2) If any key is pressed once at the manual operation1 status, FF-2 will be displayed.
And if any key is pressed one more time, FF-3 will be displayed. FF-2 and FF-3 means
manual operation2 and 3 separately. These 3 functions operate with different RPM of COMP.
1-3) If manual operation is selected, compressor will run at once without 7 minutes delay in any mode. If
the refrigerator is on the defrost cycle at the moment, defrost will be finished and manual operation
will begin.
(Be careful if manual operation get started at the moment of compressor off, over load could
be occurred)
Compulsion working 1 : 3600RPM Compulsion working 2 : 2450RPM Compulsion working 3 : 2200RPM
1-4) If manual operation works, compressor & f-fan operate continuously for 24 hours and fresh
food compartment will be controlled by the setting temperature.
1-5) When the manual operation runs, setting temperature will be selected automatically as below:
freezer compartment -8×(-22), fresh food compartment 34×(1).
1-6) During manual operation, Power Freeze & Power Cool function will not be worked.
If a function is selected, the power function icon of the selected function will be off automatically after
10 seconds.
1-7) Manual operation can be canceled by turning on the appliance after power off(reset) or choosing
the step 3) test cancel mode.
1-8) Alarm(0.25 sec ON/ 0.75 sec OFF) will beep continuously until manual operation is completed and
there is no function to make the sound stop.
57
TROUBLESHOOTING
2-1) If any key is pressed one more time during manual operation(Fresh food and freezerpartment), "Fd"
shows in the display and then manual operation will be canceled at once and fresh food
compartment will be defrosted.
2-2) At this moment, alarm beeps for 3 seconds (0.1 sec ON/ 1 sec OFF) during manual defrost function
of fresh food and freezer compartment.
1-2) “Pc - Er” display on the Flex Zone Temp. Display will be ON/OFF alternately until the
communication error is canceled. (0.5 sec ALL ON, 0.5 sec ALL OFF alternately)
58
TROUBLESHOOTING
˝ ˝
˝ ˝
59
TROUBLESHOOTING
Display error : separation of sensor The voltage of MAIN PCB CN30- “6”®
FF-Sensor Error
housing part, contact error, disconnection, shall be between 4.5V~1.0V
short circuit. The voltage of MAIN PCB CN30- “5”®
FZ-DEF-Sensor Error
Display error of detecting temperature shall be between 4.5V~1.0V
of sensor : The voltage of MAIN PCB CN30- “8”®
FF-DEF-Sensor Error more than 149⁜F(+65) or less than -58⁜F(- shall be between 4.5V~1.0V
50)
The voltage of MAIN PCB CN78- “8”®
Ambient-Sensor Error
”12”: shall be between 4.5V~1.0V
Separation of freezer compartment defrost heater After separating MAIN PCB CN70 wir
housing part, contact error, disconnection, short between CN70 Brown ® CN70
circuit or temperature fuse error. Gray shall be 63(230) ohm 7%.(Res
Display error : the defrosting does not finish though fresh value is varied by input power)
FZ-DEF Error 0 ohm : heater short, ohm : wire/bim
food compartment defrost is heating continuously for
more than 70 minutes. (Must power off)
60
TROUBLESHOOTING
Display error when open error is detected by damper After separating MAIN PCB CN77 wi
Flex Zone-Damper- heater : separation of Damper Heater housing part, between Black ® Brown wire shall be
Heater Error contact error, disconnection, short circuit 0 ohm : heater short, Ohm : wire / b
Display error when open error is detected by Heater : After changing the Ice Maker(R), plug
Ice Maker(FF) separation of Ice Pipe Heater housing part, contact error, again, and check the operation.
Function Error disconnection, short circuit.
Display error when the Ice Maker(FZ) kit operate moving The voltage of MAIN PCB CN76-”2”(
Ice Room- ice over 3 times or it is not leveled. CN76-”1” (Gray): shall be between 7V
FAN Error
Display “41 - E” in the panel with alarm : MICOM MAIN ® Actually, If there is not a problem, it is
Panel ® Main PANEL communication error. OP-Er is displayed when the Panel PCB With the oscilloscope afte
Communication Error Option is not equivalent with the right value.
F R
61
TROUBLESHOOTING
˝ ˝
˝ If Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds, ALL ON/OFF will
blink with 0.5interval for 2 seconds.
˞If take the finger off from above keys and press Power Cool Key, load condition mode will be started.
1) If Power Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds during normal
operation, the temperature setting display of fresh food and freezer compartments will blink ALL
ON/OFF with 0.5 for 2 seconds.
2) At this moment, If Power Cool Key after Energy Saver Key + Lighting Key is pressed, load
condition display mode will be returned with alarm.
3) Load condition display mode shows the load that micom signal is outputting.
However, It means that micom signal is outputting, it does not mean whether load is operating or not.
That is to say that though load operation is displayed, load could not be operated by actual load error
or PCB relay error etc. (This function would be applied at A/S.)
4) Load condition display function will maintain for 30 seconds and then normal condition will be
returned automatically.
5) Load condition display is as below. Only the load control LED will blink with 0.5interval in "Display LED"
F- R-
10 10
F-1 R-1
62
TROUBLESHOOTING
˝ If Energy Saver Key + Power freeze Key are pressed for 3 seconds, Cooling Off mode will be started.
1) If Energy Saver Key + Power freeze are pressed simultaneously for 3 seconds during normal
operation, Cooling Off mode will be started with buzzer sound(ding-dong).
2) If above Energy Saver Key + Power freeze Key are pressed one more time, Cooling Off mode will
be canceled.
3) If Cooling Off mode is selected, blinks "OF-OF" on the temperature setting display of the panel and
it indicates the refrigerator has entered the Cooling Off mode.
4) During Cooling Off mode, if fresh food and freezer compartments sensors are higher than
149×(65) Cooling Off mode will be canceled automatically and freezing operation will be returned.
(There is no buzzer sound when the Cooling Off mode is canceled by the temperature)
5) Operation contents of Cooling Off mode
- Display, Fan motor and etc operate normally, not to operate compressor only.
- Defrost is not operated. (including french heater)
- Display function of the initial real temperature is finished.
- Under the condition of Cooling Off mode, Cooling Off mode will be operated when Power On after
Power OFF.
63
TROUBLESHOOTING
˝
˝
˝ If Freezer Key+ lighting Key are pressed simultaneously for 12 seconds, option setting mode will be
started.
If the display changes to option setting mode, all displays will be off except freezer and
fridge compartments temperature display as below.
(Fresh food and freezer compartments case will be explained only because all options are operated with
the same method according to the option table.)
64
TROUBLESHOOTING
1) For example, if you want to change freezer compartment standard temperature to -4×(-2°C) by
operating option, do as below. This function is for changing the standard temperature.
In -2×(-19°C) of current temperature of freezer compartment, if you make the temperature lower to -4×
(-2°C) by the option, the standard temperature would be controlled -6×(-21°C)
Therefore, if you change the setting of temperature option to -2×(-19°C) on the panel, the appliance
will be operated with -6×(-21°C). It means that standard temperature is controlled -4×(-2°C) less than
setting temperature in the display.
Basically, all the data in option has cleared from the
factory. Therefore, almost all setting value are "0".
NOTE But, some setting values could be changed for the purpose of improving
performmance. You need to check the product manual and/or specification.
2) After changing to the option mode, fresh food compartment "0" , freezer compartment "0" will be
displayed. ( Basically fresh food compartment "0", freezer "0" would be set at shipping process,
but setting value could be changed for the purpose of improving product at mass producing
process.)
- If fresh food compartment "0" shows only, temperature reference value of freezer compartment will
be set and current freezer compartment temperature code will be displayed on the freezer
temperature display.
3) If freezer compartment "4" is set as below freezer compartment code after fresh food compartment "0
is set, standard temperature of freezer compartment will be lower than -4×(-2.0°C).
(Refer to the picture "changing the freezer compartment temperature")
: If you wait for 20 seconds after completing the setting, MICOM will save the setting value to the EEPROM
and normal display will be returned and the option setting mode will be canceled.
65
TROUBLESHOOTING
Setting value
FZ
compartment compensation
Code
0 0×(0.0)
1 -1×(-0.5)
2 -2×(-1.0)
3 -3×(-1.5)
4 -4×(-2.0)
5 -5×(-2.5)
6 -6×(-3.0)
7 -7×(-3.5)
8 +1×(+0.5)
9 +2×(+1.0)
10 +3×(+1.5)
11 +4×(+2.0)
12 +5×(+2.5)
13 +6×(+3.0) ex) If you want to change the freezer standard temperature to
14 +7×(+3.5) -4×(-2°C)
15 +8×(+4.0)
Setting value
FZ
compartment compensation
Code
0 0×(0.0)
1 -1×(-0.5)
2 -2×(-1.0)
3 -3×(-1.5) ex) If you want to change the freezer compartm
4 -4×(-2.0) 4×(2°C)
5 -5×(-2.5)
6 -6×(-3.0)
7 -7×(-3.5)
8 +1×(+0.5)
9 +2×(+1.0)
10 +3×(+1.5)
11 +4×(+2.0)
12 +5×(+2.5)
13 +6×(+3.0)
14 +7×(+3.5)
15 +8×(+4.0)
66
TROUBLESHOOTING
TROUBLESHOOTING
Output A/D (10 A/D (12 Output A/D (10 A/D (12 Output
RH(%) (mV) bit) bit) RH(%) (mV) bit) bit) RH(%) (mV) b
0 909 186 744 46 2246 460 1839 92 3452
1 943 193 772 47 2272 465 1861 93 3478
2 977 200 800 48 2298 470 1882 94 3504
3 1010 207 827 49 2324 475 1903 95 3530
4 1043 213 854 50 2350 481 1925 96 3566
5 1076 220 881 51 2376 486 1946 97 3595
6 1109 227 908 52 2402 491 1967 98 3624
7 1141 233 935 53 2428 497 1989 99 3653
8 1173 240 961 54 2454 502 2010 100 3683
9 1205 247 987 55 2480 507 2031
10 1235 253 1011 56 2505 513 2052
11 1266 259 1037 57 2530 518 2072
12 1297 265 1062 58 2555 523 2093
13 1328 272 1088 59 2580 528 2113
14 1359 278 1113 60 2605 533 2133
15 1390 284 1138 61 2630 538 2154
16 1420 291 1163 62 2655 543 2174
17 1450 297 1188 63 2680 548 2195
18 1480 303 1212 64 2705 553 2215
19 1510 309 1237 65 2730 559 2236
20 1540 315 1261 66 2756 564 2257
21 1569 321 1285 67 2782 569 2278
22 1598 327 1309 68 2808 575 2300
23 1627 333 1333 69 2834 580 2321
24 1656 339 1356 70 2860 585 2342
25 1685 345 1380 71 2886 590 2364
26 1713 350 1403 72 2912 596 2385
27 1741 356 1426 73 2938 601 2406
28 1769 362 1449 74 2964 606 2428
29 1797 368 1472 75 2990 612 2449
30 1825 373 1495 76 3017 617 2471
31 1852 379 1517 77 3044 623 2493
32 1879 384 1539 78 3071 628 2515
33 1906 390 1561 79 3098 634 2537
34 1933 395 1583 80 3125 639 2559
35 1960 401 1605 81 3152 645 2581
36 1986 406 1627 82 3179 650 2604
37 2012 412 1648 83 3206 656 2626
38 2038 417 1669 84 3233 661 2648
39 2064 422 1690 85 3260 667 2670
40 2090 428 1712 86 3288 673 2693
41 2116 433 1733 87 3316 678 2716
42 2142 438 1754 88 3344 684 2739
43 2168 444 1776 89 3372 690 2762
44 2194 449 1797 90 3400 696 2785
45 2220 454 1818 91 3426 701 2806
68
TROUBLESHOOTING
Start
** Measuring point of resistance value according to YES Bad contact of connector/ insert
Sensor ** correctly
ICE MAKER: CN90#1® #7 measuring resistance value Is ICE Maker
** 0ʃ: Short trouble / ʃ: Open trouble Sensor unit normal? NO
Refer to circuit diagram in the manual YES
Sensor MICOM/Connector number
Replace the temperature
ICE sensor
Connector CN90# ”±1”(Brown)and
Maker REG1 HEAT-SINK PCB common Ground
Is the voltage between NO(0.6V > Measurement < 4.6V)
Voltage measured between 4.6V ~ 0.6V. MAIN PCB Connector CN90#"4"(White) and
REG1, HEAT SINK normal?
ó Checking method of ICE Maker Sensor ó Checking method of ICE Maker Sensor resistance
resistance CN90 "1"(Brown) ® "7"(Gray) - Measure the Resistance R914(IC01 MICOM #89)
- Compare the temperature table after the on PCB or CN90 "1"(Brown) ® REG1, HEAT SINK
measure.
- Compare the temperature table after the measure.
Measuring voltage of CN90#4(White) ® REG1, typical PCB Ground
HEAT SINK are below. REG1 HEAT-SINK
69
TROUBLESHOOTING
Start
DATA1. TemperatureIstable
MAIN PCB NO
Connector CN30 and CN76 inserted
correctly
?
** Measuring point of resistance value according to YE Bad contact of connector/ insert
Sensor ** S
R : CN30#6 ® CN76#1 measuring resistance value
correctly
Is R Sensor NO
** 0ʃ: Short trouble / ʃ: Open trouble
unit normal?
Refer to circuit diagram in the manual
YE Replace the temperature sensor
Sensor MICOM/Connector number Is the voltage between NO(0.6V > Measurement < 4.6V)
Connector CN30#6(White) to MAIN PCB Connector CN30#6(White) and
R REG1 HEAT-SINK PCB typical Ground REG1 HEAT-SINK normal?
Voltage measured between 4.6V ~ 0.6V.
YES Recheck the wire connection
Measuring voltage IC01 MICOM #76, part
CN30#6(White) and REG1, HEAT SINK Is the input voltage of
from PCB typical Ground part are IC01 MICOM #76 normal? NO
similar.
ª Check the measure on the Resistance, R311 due YES
to the SMD MICOM Check the iced-solder, solder
bridging,
No trouble with PCB and temperature disturbed solder.
sensor. Recheck the bad contact of the
connection.
70
TROUBLESHOOTING
Start
Is MAINDATA1.
PCB NO
Connector CN30 and CN76
Temperature inserted
table
correctly
?
** Measuring point of resistance value according to YE Bad contact of connector/ insert
Sensor **
R-DEF : CN30#8 ® CN76#1 measuring resistance value S correctly
** 0ʃ: Short trouble / ʃ: Open trouble Is R DEF Sensor NO
unit normal?
Refer to circuit diagram in the manual
YE Replace the temperature sensor
Sensor MICOM/Connector Number Is the input voltage between NO(0.6V > Measurement < 4.6V)
MAIN PCB Connector CN30#8(Skyblue)
R DEF Connector CN30-"8"(Sky-blue) and
REG1, HEAT SINK PCB common Ground and REG1, HEAT SINK
Voltage measured between 4.6V ~ 0.6V. normal?
Recheck the wire connection
YES part
Measuring voltage of IC01 MICOM #78
CN30-"8"(Sky-blue) and REG1, HEAT SINK from Is the input voltage of IC01 NO
PCB typical Ground part are similar. MICOM # 74 normal?
ª Check the measure on the Resistance R313 due to
the
SMD MICOM
YES Check the iced-solder, solder
bridging,
No trouble with PCB and temperature disturbed solder.
sensor. Recheck the bad contact of the
connection.
TROUBLESHOOTING
...
71
TROUBLESHOOTING
Start
Is MAINDATA1.
PCB NO
Connector CN31 inserted
Temperature table
correctly?
** Measuring point of resistance value according to
Sensor ** YES Bad contact of connector/ insert
Ambient : CN78#8 ® #12 measuring resistance value correctly
** Placed in the right top table of upper hinge. Is Ambient Sensor NO
** 0ʃ: Short trouble / ʃ: Open trouble
unit normal?
Refer to circuit diagram in the manual
YES Replace the temperature sensor
Sensor MICOM/Connector number
Is the voltage between NO(0.6V > Measurement < 4.6V)
Ambient Connector CN78-"8"(Yellow) to MAIN PCB Connector CN31#1(Yellow)
REG1, HEAT-SINK PCB typical Ground and REG1, HEAT SINK
Voltage measured between 4.6V ~ 0.6V. normal?
Recheck the wiring connection
YES
Measuring voltage of IC01 MICOM CN78-"8"(Yellow) NO
and REG1, HEAT SINK from Is the input voltage of
PCB typical Ground part are similar. IC01 MICOM #72 normal?
ª Check the measure on the Resistance, R315 due to
the SMD MICOM Check the iced-solder, solder
YES
No trouble with PCB and temperature sensor bridging, disturbed solder
Recheck the bad contact of the connection
ó Checking method of Ambient Sensor resistance ó Checking method of Ambient Sensor voltage
CN78-#"8"(Yellow) ® # "12"(Yellow) - Measure the voltage of Resistance R315(IC01 MICOM
#91) on
- Compare the temperature table after PCB or CN78-"8"(Yellow) ® REG1, HEAT SINK
- Compare the temperature table after measurement. Typical PCB Ground
measurement. Measuring voltage of CN78-"8"(Yellow) ® REG1, HEAT
SINK are as below REG1 Heater Sink
72
TROUBLESHOOTING
5) If F Sensor has
trouble
Start
73
TROUBLESHOOTING
Start
Are MAIN PCB NO
Connector CN30 and
DATA1. CN76 insert correctly?
Temperature
table
YES Bad contact of connector/ insert
** Measuring point of resistance value according to correctly
Is F DEF Sensor NO
Sensor **
F-DEF : CN30#5 ® CN76#1 measuring resistance unit normal?
Refer
valueto circuit diagram in the manual
** 0ʃ :Short trouble /ʃ : Open trouble YES Replace temperature sensor
Sensor MICOM/Connector number Is the voltage between NO(0.6V > Measurement < 4.6V)
Connector CN30-"5"(Orange) to MAIN PCB Connector CN30#4(Orange) and
F DEF REG1, HEAT SINK PCB typical Ground REG1, HEAT SINK normal?
Voltage measured between 4.6V ~ 0.6V.
YES Recheck the wiring connection
Measuring voltage of IC01 MICOM #75, Is the input voltage of NO
CN30-"5"(Orange) and REG1, HEAT SINK from
IC01 MICOM #77 normal?
PCB typical Ground part are similar.
ª Check the measure on the Resistance, R310 due to
the SMD MICOM YES Check the iced-solder, solder
No trouble with PCB and temperature bridging, disturbed solder
sensor. Recheck the bad contact of the
connection.
ó Checking method of F DEF Sensor resistance ó Checking method of F DEF Sensor voltage
CN30-"5"(Orange) ® CN76#1(Gray) - Measure the voltage of Resistance, R310(IC01 MICOM
#75) on
- Compare the temperature table after PCB or CN30-"5"(Orange) ® REG1, HEAT SINK
measurement. - Compare the temperature table after measurement. Typical PCB Ground
Measuring voltage of CN30-"5"(Orange) ® REG1, HEAT REG1, Heater Sink
SINK are as below
74
TROUBLESHOOTING
Start
Is MAIN PCB NO
DATA1. Connector CN31 and CN76 inserted
Temperature correctly?
table YES Bad contact of conne
** Measuring point of resistance value according to
Sensor
Ambient **
: CN78#10 ® CN76#1 Measure the NO
Is Ice Room Sensor
resistance value unit normal?
** 0ʃ: Short trouble / ʃ: Open trouble
Refer to the circuit diagram in this manual Replace tempera
YES
Sensor MICOM/Connector number Is the voltage between NO(0.6V > Measurement < 4.6V)
Connector CN78-"10"(Orange) and MAIN PCB Connector CN31-”3”(Orange)
Ice REG1, HEAT SINK from typical PCB and REG1, HEAT SINK
Room Voltage
Groundmeasured between 4.6V ~ 0.6V. normal?
Check the wiring connection
YES
Measuring voltage of IC01 MICOM #90, NO
CN78-"10"(Orange) and REG1, HEAT SINK from Is the input voltage of
typical PCB Ground are similar. IC01 MICOM #71 normal?
ª Check the measure on the Resistance, R316 due
to the SMD MICOM
Check the iced-solder, solder
YES
No trouble with PCB and temperature sensor. bridging, disturbed solder
Check the bad connections.
ó Checking Mehod of Ice Room Sensor voltage ó Checking Method of Ice Room Sensor
CN78-"10"(Orange) ® CN76-”1” (Gray) Voltage
- Measure the Resistance, R316(IC01 MICOM #90) on
- Compare with the temperature table after PCB or Typical PCB Ground
measurement. CN78-"10"(Orange) ® REG1, HEAT SINK REG1, HEAT SINK
- Compare with the temperature table after
measurement. Measured voltage of
CN78-"10"(Orange) ® REG1, HEAT SINK are as
below
75
TROUBLESHOOTING
Start
Is MAINDATA1.
PCB NO
Connector CN30 and CN76
Temperature tableinsert
correctly
?
** Measuring point of resistance value according to YES Bad contact of connector/ insert
Sensor **
Flex : CN30#9 ® CN76 #1 measuring resistance value
correctly
Is Pantry Sensor NO
** 0ʃ: Short trouble / ʃ: Open trouble
normal
Refer to circuit diagram in the manual ?
YES Replace temperature sensor
Sensor MICOM/Connector number Is the voltage between NO(0.6V > Measurement < 4.6V)
MAIN PCB Connector CN30#9(Whiteblack)
Pantry Connector CN30-"9"(Yellow) to
REG1 HEAT SINK PCB typical Ground and REG1, HEAT SINK
normal?
Voltage measured between 4.6V ~ 0.6V.
Recheck the wiring connection
YES
Measuring voltage of IC01 MICOM #81, NO
CN30-"9"(Yellow) and REG1, HEAT SINK Is the input voltage of IC01
from PCB typical Ground part are similar. MICOM Pin# 73 normal?
ª Check the measure on the Resistance, R314 due to
the Check the iced-solder, solder
SMD MICOM YES
No trouble with PCB and temperature bridging, disturbed solder
sensor. Recheck the bad contact of the
connection.
76
TROUBLESHOOTING
Start
Is MAIN PCB
Connector CN30 to NO
CN30 inserted correctly?
YES
** Measuring point of resistance value according to Bad contact of connector /insert correctly
Sensor"
Humidity : CN30#1® #3 Is Humidity Sensor NO
Resistance value with opened : about 50ʃ unit normal?
** 0ʃ: Short trouble / ʃ: Open trouble Replace the Humidity Sensor
Refer to circuit diagram in the manual YES
DATA2. Humidity Sensor Table
Sensor MICOM/Connector number Is the voltage between NO (1.0V > Measurement < 3.5V)
MAIN PCB Connector CN30-”3”(Brown) and REG1, Heat
Connector CN30-"3"(brown) to
Humidity REG1 HEAT-SINK Sink normal?
PCB typical Ground
Voltage measured between 3.5V ~ 1.0V YES Recheck the PCB & Wire Terminal connection
Measuring voltage of ICO1 MICOM #73, Is input voltage of NO
CN30-"3"(Brown) and REG1, HEAT SINK from
ICO1 MICOM #73 normal?
PCB typical Ground part are similar.
ª Check the Resistance, R321
YES Check the iced-solder,
solder bringing, disturbed
No trouble with PCB temperature solder Exchange the PCB
sensor. Recheck the bad contact ofthe
connection
Checking method ofHumidity Sensor resistance Checking method ofHumidity Sensor voltage.
CN30-"3"(Brown)® "1"(Gray) - Measure the voltage of Resistance, R321(IC01 MICOM
#73) Typical PCB Ground
- Compare the temperature table after the on PCB or CN30-"3"(Brown) ® REG1, HEAT SINK REG1 HEAT-SINK
measure. - Compare the temperature table after the measure.
Measuring voltage of CN30-"3"(Brown) ® REG1, HEAT
SINK
are below
77
TROUBLESHOOTING
Is Tank Water
Heater normal?
Start (about72ohm)
Is Damper Heater NO
normal?(about135ohm)
78
TROUBLESHOOTING
Is Tank Water
Heater normal?
Start (about72ohm)
YES
8JSFDPOOFDUPS
Micom Initial Heater Working 3FQMBDF )FBUFS
Heater (IC01) power On off heater Is the input voltage of IC01 NO
MICOM #50 normal?
#50 3.5V ~ 3.5V ~
Ice 0V
4.8V 4.8V YES
Duct 1) Recheck the
Normal(recheck) wire
2) Replace PCB
MAIN
79
TROUBLESHOOTING
Start
Is COMPRESSOR ON
?
Execute manual
operation
Is the voltage between MAIN Is the voltage between MAIN Is the voltage between MAIN
PCB REG1, HEAT SINK and PCB REG1,Heater Sink and CN76#4 PCB REG1 Heater Sink and
CN (Orange) around DC7~12V? CN76#3 (Yellow) around DC7~12V?
76#5(Sky -blue) around DC7~12V?
FAN work normally
Is the external temperature Is the voltage between MAIN Is the voltage between MAIN
above 66.2 ×(19 )? PCB REG1,Heater Sink and CN PCB REG1 Heater Sink and CN30#1
30#2 (Purple) around 0V? (Black) around 4.5~5V?
Repair the connection
of Door switch
Does DC7~12V alternate with below DC Does DC7~12V alternate with below DC Does DC7~12V alternate with
2V between MAIN PCB REG1 Heater 2V between MAIN PCB REG1 Heater below DC 2V between MAIN PCB REG1
Sink and CN76#5(Sky-blue) Sink and CN76#4(Orange) Heater Sink and CN76 #3(Yellow)
Replace MAIN PCB
F FAN ERROR
1) F-FAN 2) R-FAN 3) C-FAN
C FAN ERROR
80
TROUBLESHOOTING
- When pressing the ICE TEST S/W for a certain period of time
(over 1.5sec), the function is accomplished. After beginning of Start
TEST mode, Ice maker heater turns on for initial 2 minutes, if the
ice making temperature is below 0.
- If it exceeds 0, Ice maker heater turns on for initial 30 seconds.
- After Ice maker heater turns on for 30 seconds, it turns off No
Is COMPRESSOR ON ?
and then Ice maker motor turns on.
- As the Ice maker motor turns on, TEST MODE COUNT operates.
(6 minutes count) Execute manual
Yes
operation
Condition
- Ambient temperature : 32/75%
- Notch : 2×/38×(-19.0/3.3) Is the voltage
Initial full of ice bucket capacity : 794 g, 58ea between
MAIN PCB REG1 Heater Sink Yes
and
CN76-”2” (Black)
around FAN works
DC7~12V? normally
Ice Room control
No
temperature
Ice ON 8.6×(-13)
Ice OFF 26.6×(-3) Is the Ice Room
temperature suitable No
for the Fan working?
Operation
Yes temperature/ready
Reference
CN76 #6 will generate the pulse signal when motor rotates.
These signals will be input into MICOM. No
Unless signals are not input during motor operating, will be ON Does DC7~12V
10seconds after fan OFF. But if signals are not still taken, the alternate
above operation will be retried four times more. If signals are not with below DC2V between MAIN PCB
taken continuously, the motor will be restarted after 10 minutes.
This function is against the case that motor movement would be REG1 Replace MAIN PCB
restrained by foreign matters like ice. Yes
£ Predicted Cause
FAN pulse voltage
CN76-”6”(Pink)
Typical PCB
Ground ˝ FAN-MOTOR troubles itself
REG1 Heater
Sink
˞Bad wiring connections.
˟ Wrong Input of the fan motor rotation pulse
81
TROUBLESHOOTING
Start
Is COMPRESSOR ON ?
No
Does DC7~12V No
alternate
with below DC2V between
CN79- MAIN PCB
Yes
Replace
£ Predicted Cause
˝ FAN-MOTOR troubles itself
˞Bad wiring connections.
˟ Wrong Input of the fan motor rotation pulse
ó Checking method of Flex Zoon FAN Motor Voltage with the voltage
between CN79-"1"(Orange) and "3"(Blue) shall be less than DC10~12V
- Additional check if resistance values are different after measurement.
1) Flex Room - FAN
82
TROUBLESHOOTING
No
Is the Ice Maker Sensor unit
normal?
Yes 1) Repair the Ice Maker
Sensor
* Refer to the solution “If
No trouble with PCB and temperature Ice
sensor, Check the bad wiring connections. Maker Sensor has
trouble”
83
TROUBLESHOOTING
Start
**Measuring point of resistance value according to
heater** F-DEF : CN70#9(Brown) ® CN70#13(Gray)
measuring resistance value(63 ohm 7%) Are the all deforst
R-DEF : CN70#7(White) ® CN70#13(Gray) heater normal?
measuring resistance value(120 ohm 7%)
Check the bimetal, heater
** 0ʃ: Short trouble / ʃ: Open(bimetal, heater) disconnection, wiring connection
trouble etc.
Replace the
applicable
sensor
**Measuring point of resistance value according to
sensor ** F-DEF : CN30#5 ® CN76#1 measuring Is the temperature of
resistance value defrost sensor lower
R-DEF : CN30#8 ® CN76#1 measuring resistance than 53.6×(12°C)?
value
** 0ʃ: Short trouble / ʃ: Open trouble manual operation for a certain time
84
TROUBLESHOOTING
85
TROUBLESHOOTING
Did 7 mins
No pass after Compressor
OFF ?
Yes
Check after 7 minutes
Yes
$IFDL UIF XJSF EJTDPOOFDUJPO 3FQBJS 01&/ EJTDPOOFDUJPO
*T UIF DPOOFDUPS $/ PG No
$0.1 OPSNBM
Yes
Check bad contact of connector
Is COMP ASS'Y No
normal?
86
TROUBLESHOOTING
87
TROUBLESHOOTING
4-2-9. When alarm sounds continuously without stop(related with buzzer sound)
˝ If 'ding-dong'sound continuously
Start
FF
FZ Mid Drawer Is the door
Door MICOM(#52) switch unit normal?
MICOM(#51)
MICOM(#53) Left and
Right
Close 5V(High) 0V(Low) 0V(Low) Replace Door S/W
Open 0V(Low) 5V(High) 5V(High) Is the connector CN76
inserted correctly?
Connector is not inserted,
Repair disconnect part
Seperate the door switch andcheck
if the measured value of unit is Is the input
changed from 0ʃ to ʃ voltage of main
according to switch ON/OFF. #53,#52,#51 changed at
* FF Door Switch is magnetic door-open and close status?
switch. (It can be operated when Repair wire connection and
door magnet is combined with it.) Door S/W
Start
Is manual operation
/defrost selected?
88
TROUBLESHOOTING
Start
Does it sound
'dingdong' if press a
button on the front panel?
89
TROUBLESHOOTING
You should check the display after door opening because the display of this model operates
only when the fresh food compartment door is opened.
Start
Is the connector
of Mid Drawer Room inserted
correctly
Reinsert Connector,
Repair bad contact
Is MAIN PCB Connector
(CN51) inserted correctly?
Is signal of MAIN
PCB CN51 normal?
If Panel Key is not selected Check voltage/Replace MAIN PCB
Is the lighting
operated when replace Pantry
Panel-PCB?
Panel PCB itself has trouble.
90
TROUBLESHOOTING
* If the Vegetable Lamp does not work properly, check the FF compartment LED Lamp because it is
connected with the FF compartment LED Lamp in parallel. Refer to the circuit diagram to repair.
Start
Door & MICOM State
MICOM(#52)
Doo
r Right and Left Does the
No
Clos 0V(Lo DOOR S/W sense
w) properly?
e (Open/Close)
Ope 5V(Hig
n h) Yes
MICOM Check/Replace REED
S/W, Magnet
State ASSsY
Door FF FZ Mid
(Right Drawer
and Left) #52 #53 #51 Is the output
No voltage of IC01 MICOM #52
Close 0V (Low) 5V 0V normal?
(High) (Low)
Open 5V 0V (Low) 5V Yes Replace/Repair the PCB
Is the output
No voltage of IC76
IC76(FF)/IC77(FZ)/IC78(Mid Drawer) normal?
State
Micom IC76(FF)/IC77(FZ)/IC78(Mid Yes Replace/Rep air the
Drawer) PCB.
0V(Low 0V(Lo Repair IC76
) w) Is the MAIN
5V(High 11~12V(High) PCB connector(CN78) No
inserted properly?
Yes
Check the
wire
Re-insert the
connector
Does the MAIN No
PCB connector(CN78)
output properly? (11~12V)
No
Is the LED LAMP
normal?
Yes
Replace LED LAMP
Normal
Open
91
TROUBLESHOOTING
Start
92
TROUBLESHOOTING
No
Are Ices ejected?
Yes
No
Are Ices in the Ice bucket?
Cubed Ice
After disconnecting Yes - RY7A, RY7B RELAY After disconnecting Yes - RY7A RELAY Error
Error - Replace the MAIN PCB
the CN71, CN73 - Replace the MAIN PCB the CN71, CN73
measure The both measure The both
ends of Contact ends of Contact
points. points.
TROUBLESHOOTING
TROUBLESHOOTING
Is Cubed or Crushed No
Ice mode selected on
the LED PANEL?
Is the DISPENSER No
switch selected?
Is the sensing
No
SWITCH
connection
normal?
˝ Main PCB - Check the wire OPEN/SHORT between the Cover Ice Motor Rotation sensing switches.
˞Check the Short of Cover Ice Motor Control Circuit SSR75 in the MAIN PCB.
˟ Replace the MAIN PCB or the Dispenser Cover Motor.
TROUBLESHOOTING
TROUBLESHOOTING
Is 110V/220V
applied between both end of PCB
No
inverter CN101 "1”
and
CN102 "3”?
Yes
Check the wire connection
No
Replace FUSE - 250V 6.3A
Is DC 300V
No applied between both ends of
BD1+,-?
Yes
Check PCB PATTERN & Replace BD1
Is DC300V
No applied to HYBRID
IC #10
PIN?
Yes
Replace PCB ASSsY
Is DC15V
No applied to HYBRID
IC #1 PIN?
Yes
1) Replace HYBRID IC(IC3:BP5047B15)
2) Replace PCB ASSsY
No
Is 5V applied to
C106?
Yes
Replace REG1 (KA78L05)
Is there any
No
PCB soldering short
or
breakage?
Yes
Replace PCB ASSsY
Normal
95
TROUBLESHOOTING
If Failure Condition is detected during compressor is operating, immediately stop Compressor operating and
stand by 5 minutes. During this 5 minutes, RPM command signal is not available. It means, even if available
RPM command signal is applied to the compressor, it does not work and keep standing by.
96
TROUBLESHOOTING
97
TROUBLESHOOTING
1. Inrush Current protecting area : It prevents an instant inrush of current generated in condenser when plug in.
2. PCB Power Source : Power source (HYBRID IC). It supplied DC15V and 5V to MICOM.
3. Location sensing resistance area : It senses motor location through the current detected.
4. Current sensing area : It senses the current from the SHUNT resistance and controls PWM DUTY.
5. COMP operating SIGNAL area : It receives COMP operating signal from MAIN PCB and conduct it.
6. BOOTSTRAP live part : Charging circuit that 1GBT of SPM can On/Off securely.
98
TROUBLESHOOTING
99
TROUBLESHOOTING
1) The Power Thermistor prevents an instant inrush of current generated in condenser(C1) when plug in, and
Relay(K1) operates 0.1 second after plug in and the power is supplied by relay afterward.
2) The Fuse 1 is designed as 5A to prevent over current applied to Compressor, and Fuse 2 is designed as 1A
to protect SMPS area and power in secondary part.
1) The power supplied by Noise-Filter is rectified through COMP OLP and the voltage of 300V/DC, rectified
through DIODE, is applied in parallel to the SPM and SMPS area, a compressor operating driver.
2) The power source is the circuit which reduces 300V/DC to each 12V/DC and 15V/DC by Hybrid IC,
and supplied to operate the MICOM for controlling COMP, and SPM.
100
TROUBLESHOOTING
1) The circuit makes an AD conversion from MICOM for about 3.3V that divides the Motor Back EMF voltage
(DC300V) by 3 of 300K resistance and 10K resistance.
1) It is the circuit which senses the current from the SHUNT resistance and controls PWM DUTY and
the converted value as voltage (about 0.5V) is applied to the MICOM PIN #18.
101
TROUBLESHOOTING
1) It is the circuit which receives COMP operating signal (200HZ ~ 400HZ) from Main PCB and controls the RPM
of the Inverter Comp.
102
103
5-1) Freezer
6
1-3
3
1-1
4-2
4-3
4-1 1-2
7
12
7-1 12-3
5 12-1
2 12-5 12-6
9
10
11
104
105
5-2) Refrigerator
19
30
19-1 27
29
31
19-3 14
19-2 31-1
23 31-2
29-1
23-2 11
9
13
23-1
23-3 9-1 3
8
12
26 28
15
28-8
28-7
5 4
28-4
5-2 1
28-6 28-5
2
28-1 28-3
28-2
5-1
24 25-2
24-3 25 25-3
6 24-2 24-1
25-4
18 25-1
17
7
10-4
16
21 22-2 10-5
22-11
16-1 16-4
22-4 22-9 16-2
22-6
22-8
22-13
20 22-3
22-1
16-3
22-10 22-7
22-5
106
107
108
5-3) Cabinet
32
34
31 36
33 10
39
37
35
27
28
21
13
12 6
14 17
14-1
38
11
18
16
24
29
26
30 4 1
4-1
1-4
1-1
1-4-1
1-2
1-4-2
4-2
1-3
8
3
40
2
7
20
19
2-4 5
19-6 23 22
2-1
2-3 19-4
2-2
2-1
2-3 19-5 9
2-2
15
19-1
15-2 19-3 19-5-1
15-1 19-2
15-2
15-1
25
109
EXPLODED
EXPLODEDVIEW&
VIEW&PARTS
PARTSLIST
LIST
¥ Parts List of Cabinet
/0//00 $$00%%&&
$0%& /0 //00 11""3355 1"35 /".&
//""..&& 4411&&$$ 22ssUUZZ 41&$
33&&..""33,, 2sUZ
1 DA96-00639A ASSY W/HARNESS-MAIN AW3-PJT 1
1-1 DA32-00033C SENSOR TEMP PX-41C,-40~110#,5V,JST HOUSI 1
1-2 DA63-05470A COVER SENSOR-FRE AW3,HIPS,COOL WHITE(SCAW09- 1
1-3 DA96-00562A ASSY W/HARNESS-COND PJT,100~127V 1
1-4 DA97-08608A ASSY COVER-SENSOR FRE AW3 1
1-4-1 DA32-00033C SENSOR TEMP PX-41C,-40~110#,5V,JST HOUSI 1
1-4-2 DA63-05470A COVER SENSOR-FRE AW3,HIPS,COOL WHITE(SCAW2- 1
2 DA97-06487R ASSY CABINET-BOTTOM FRONT ND,THAI-SI 1
2-1 DA61-01920A CASTER-RIVET (ZPC2),MSWR10,OD8.0,L54,-,- 2
2-2 DA61-04702A CASTER-FRONT AW-PJT,PP,-,35,NTR,35,PP+TP 2
2-3 DA61-04977A FOOT-FRONT AW2-PJT,PP+MSWR10,-,BLACK,-,- 2
2-4 DA97-07147A ASSY SUPPORT-FOOT FRONT AW2-PJT,-,-,-,-, 2
3 DA27-00022A COIL FILTER-EMI AW3-PJT,20mH,40m,42?,82 1
4 DA31-00010D FAN-ASS'Y -,ET,ZIPEL,ASSY,-,UNIT,#150 1
4-1 DA31-00015C FAN-TURBO -,ET-PJT,ABS+GLASS FIBE,-,GR-4 1
4-2 DA61-20128A SPRING ETC-FAN -,STS304,PI7.8,-,OD1.0,-, 1
5 DA34-00004D RELAY PROTECTOR O/L 4TM445PHBYY-82,BK190 1
6 DA41-00614B PBA SUB-INVERTER AW3-PJT,TOP,FR-4,1.6T*1 1
7 DA62-02614A DRYER-SINGLE HAEMIL_10,C1220T,OD18.85,L1 1
8 DA63-01866A COVER RELAY NORYL,T2.0,SSEC,BLACK,HOOK 1
9 DA63-02617A GROMMET COMP USP05,EPDM,OD18.5,BLACK 4
10 DA63-40171B GROMMET-SUCT PIPE A -,NBR,OD20,ID4,L20,- 1
11 DA63-40171D GROMMET-SUCT PIPE B RAIL L19.5,NR,-,OD20 1
12 DA73-10190U PIPE-CONNECT DISC,B TD-PJT,C1220-T,-,6.3 1
13 DA97-04049E ASSY CAP-DRAIN AW3 2
14 DA97-07070A ASSY MOTOR-STEP VALVE CULLINAN,MOLD BRAC 1
14-1 DA39-00415A WIRE HARNESS-STEP VALVE GUGGENHEIM,PVC-T 1
15 DA97-07547A ASSY CHASSIS-COMP AW2-CD,-,-,-,-,-,PP+TP 1
15-1 DA61-04703A CASTER-REAR AW-PJT,PP,-,35,NTR,35,PP+TPE 2
15-2 DA66-00649A SHAFT-CASTER AW-PJT,MSWR10,L46,OD8.2,-,- 2
16 DA97-08441A ASSY COVER-COMP AW3 1
17 DA97-08442A ASSY COVER PCB PANEL AW3 1
18 DA97-08458A ASSY PIPE CONNECT AW3,4 DOOR 1
19 DA97-08460A ASSY TRAY-DRAIN WATER AW3,4 DOOR 1
19-1 DA62-02507A SEAL-SUB CONDENSER AW3,FOAM-PE,BLACK,T3 1
19-2 DA63-05084A TRAY-DRAIN WATER AW2-PJT,PP,NTR 1
19-3 DA63-40128A GROMMET-SUB COND -,NBR,-,-,-,-,-,-,DARK- 2
19-4 DA63-40171B GROMMET-SUCT PIPE A -,NBR,OD20,ID4,L20,- 2
19-5 DA97-08462A ASSY SUPPORT-CIRCUIT MOTOR AW3,4 DOOR 1
19-5-1 DA31-00146B MOTOR BLDC DRCP5030LA,1560,-,DC12V,230mA 1
19-6 DA97-08464A ASSY PIPE SPIRAL COND AW3 1
20 MKV190CL2B/E01 COMPRESSOR 115V~60HZ,BLDC,FAN,MKV 1
21 DA41-00684A PBA MAIN AW3-PJT,ASSY CYCLE,FR-1,210*197 1
22 DA39-20389L WIRE HARNESS-EARTH TMF/LMF,-,-,-,-,-,AWG 1
23 DA39-00154J WIRE HARNESS-COMP AW3-PJT,UL1015AWG18,35 1
24 DA63-02905A GROMMET HINGE-MID,R NEXT,POM,T2.0,-,-,-, 1
DA63-04975A COVER-LEG FRONT AW2 CD,Creamy STS 1
25 DA63-04975B COVER-LEG FRONT AW2 CD, I-Black 1
DA63-04975C COVER-LEG FRONT AW2 CD, Snow White 1
26 DA63-02905A GROMMET HINGE-MID R NEXT,POM,T2.0,-,-,-,-,WHITE,- 2
DA67-02304A CAP-TOP TABLE AW2 CD, CREAMY STS 2
27
DA67-02304B CAP-TOP TABLE AW2 CD, I BLACK 2
110
111
1-4 1-15
1-3
1-5
1-1 1-10 1-3
1-10 1-1
1-2 1-6
1-7 1-6
1-2
1-11
1-8
1-13
1-14
1-9
1-9
1-12
2-3
2-2
2-4
2-1
112
EXPLODED
EXPLODEDVIEW & PARTS
VIEW& PARTS LIST
LIST
¥ Parts List of Refrigerator Door-freezer
/0 $0%& /0 1"35 /".& 41&$ 2sUZ
1 DA91-03036A ASSY DOOR-FRE AW3 1
1-1 DA61-05899A FIXER-SHAFT R AW3,POM,NTR 2
1-2 DA61-05930A FIXER-SHAFT L AW3,POM,BLACK(SC-00477R) 2
DA61-06014A SLIDER-EASY HANDLE AW3,RS,PN 2
1-3 DA61-06014B SLIDER-EASY HANDLE AW3,BP 2
DA61-06014C SLIDER-EASY HANDLE AW3,WP 2
DA63-05432A COVER-HANDLE L AW3,Creamy STS 1
1-4 DA63-05432B COVER-HANDLE L AW3, I-Black 1
DA63-05432C COVER-HANDLE L AW3, Snow White 1
DA63-05433A COVER-HANDLE R AW3,Creamy STS 1
1-5 DA63-05433B COVER-HANDLE R AW3, I-Black 1
DA63-05433C COVER-HANDLE R AW3, Snow White 1
1-6 DA66-00579B SHAFT-CAP HANDLE AW3,MSWR10,92,5,ZPC3(Y) 2
DA67-02512A CAP-HANDLE CONV L AW3,Creamy STS 1
1-7 DA67-02512B CAP-HANDLE CONV L AW3, I-Black 1
DA67-02512C CAP-HANDLE CONV L AW3, Snow White 1
DA67-02513A CAP-HANDLE CONV R AW3,Creamy STS 1
1-8 DA67-02513B CAP-HANDLE CONV R AW3, I-Black 1
DA67-02513C CAP-HANDLE CONV R AW3, Snow White 1
1-9 DA61-02904B SUPPORT-DOOR POSITION,IN AW-PJT,HIPS,-,- 2
1-10 DA61-04335B SPRING ETC-EASY HANDLE 08 AW1,2-PJT,HSWR 2
DA91-03007A ASSY DOOR FOAM FRE AW3,RS 1
DA91-03007B ASSY DOOR FOAM FRE AW3,BP 1
1-11
DA91-03007C ASSY DOOR FOAM FRE AW3,WP 1
DA91-03007D ASSY DOOR FOAM FRE AW3,PN 1
DA64-02550A HANDLE BAR-FRE AW2-PJT,STS304,-,-,730,-, 1
1-12 DA64-03246A HANDLE BAR-FRE AW2-PJT,BLACK 1
DA64-03246B HANDLE BAR-FRE AW2-PJT,WHITE 1
1-13 DA61-03153B HANGER-RAIL FRONT L AW-PJT,SECC1,T2.0,CO 1
1-14 DA61-03155B HANGER-RAIL FRONT R AW-PJT,SECC1,T2.0,CO 1
DA97-05557Q ASSY-GASKET DOOR FRE AW3_FRE,GRAY 1
1-15
DA97-05557P ASSY-GASKET DOOR FRE AW3_FRE,BLACK 1
2 DA97-08407A ASSY GUARD-FRE AW3 1
2-1 DA61-05846A SUPPORT-GUARD FRE R AW3,HIPS,COOL WHITE( 1
2-2 DA61-05847A SUPPORT-GUARD FRE L AW3,HIPS,COOL WHITE( 1
2-3 DA63-03459A GUARD-FRE FLIP AW-PJT,HIPS(HR-1360),-,-, 1
2-4 DA63-05386A GUARD-FRE AW3,HIPS,COOL WHITE(SC-02740R) 1
113
8 8-1
8-2
6
11
11-1
9
7
10
7-1-7
7-1 7-1-4
10-6
10-1
10-2
10-4
10-5 10-3
10-7
9-2
12
9-1
3
7-1-1
4 7-1-3
7-1-2
7-1-6
7-1-5
5
114
115
4
6
2 5
3
5
116
117
2-19
1
2-7
2-6
2-11
2-3 2-10
2-2 2-15 2-9 2-8 2-6
2-12
2-17
2-15
2-1 2-12 2-3 2-2
2-13
2-14
2-4
2-5
2-16
2-18
118
119
6. PCB DIAGRAM
120
PCB DIAGRAM
PCB DIAGRAM
122
PCB DIAGRAM
6-3-1. RF4287HA**
123
PCB DIAGRAM
6-4-1. RF4287HA**
124
7. WIRING DIAGRAM
BLU
BLU
125
7. WIRING DIAGRAM
126
7. WIRING DIAGRAM
BLU
BLU
127
7. WIRING DIAGRAM
128
8. SCHEMATIC DIAGRAM
129
8. SCHEMATIC DIAGRAM
130
SCHEMATIC DIAGRAM
8-2-1. MAIN
131
SCHEMATIC DIAGRAM
8-2-2. INVERTER
132