LG LSC27926 Bedienungsanleitung

CAUTION

PLEASE READCAREFULLY THE SAFETY PRECAUTIONS OF THIS MANUAL

BEFORECHECKINGOROPERATINGTHE REFRIGERATOR.

SERVICEMANUAL

MODEL : LSC27926**

REFRIGERATOR

WARNINGS AND PRECAUTIONS FOR SAFETY ................................................................................................................ 3

SPECIFICATIONS................................................................................................................................................................... 4

PARTS IDENTIFICATION....................................................................................................................................................... 5

HOW TO INSTALL THE REFRIGERATOR .......................................................................................................................... 6

HOW TO ADJUST DOOR HEIGHT.................................................................................................................................... 6

FILTER................................................................................................................................................................................ 7

HOW TO CONTROL THE ICEMAKER WATER SUPPLY.................................................................................................. 8

MICOM FUNCTION .............................................................................................................................................................. 10

EXPLANATION OF MICOM CIRCUIT.................................................................................................................................. 23

EXPLANATION OF PWB CIRCUIT.....................................................................................................................................23

PWB PARTS DIAGRAM AND LIST.....................................................................................................................................40

PWB CIRCUIT DIAGRAM...................................................................................................................................................43

ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR ...........................................................................46

WORKING PRINCIPLES.................................................................................................................................................... 46

FUNCTION OF ICE MAKER .............................................................................................................................................. 47

ICE MAKER TROUBLESHOOTING................................................................................................................................... 48

ICE MAKER CIRCUIT .........................................................................................................................................................49

CIRCUIT................................................................................................................................................................................ 53

TROUBLE DIAGNOSIS........................................................................................................................................................ 54

TROUBLESHOOTING ....................................................................................................................................................... 54

FAULTS .............................................................................................................................................................................. 64

COOLING CYCLE HEAVY REPAIR ................................................................................................................................. 81

HOW TO DEAL WITH CLAIMS ........................................................................................................................................ 88

HOW TO DISASSEMBLE AND ASSEMBLE..................................................................................................................... 93

DOOR............................................................................................................................................................................... 93

HANDLE........................................................................................................................................................................... 94

FAN SHROUD GRILLE .................................................................................................................................................... 95

ICEMAKER ASSEMBLY................................................................................................................................................... 95

DISPENSER..................................................................................................................................................................... 96

EXPLODED VIEW &

REPLACEMENT PARTS LIST ........................................................................................................................................... 98

CONTENTS

- 2 -

Please observe the following safety precautions to use the

refrigerator safely and correctly and to prevent accident or

injury when servicing.

1. Be careful of an electric shock. Disconnect power cord

from wall outlet and wait for more than three minutes

before replacing PWB parts. Shut o the power

whenever replacing and repairing electric components.

2. When connecting power cord, please wait for more than

ve minutes after power cord was disconnected from the

wall outlet.

3. Please check if the power plug is pressed by the

refrigerator against the wall. If the power plug was

damaged, it could cause re or electric shock.

4. If the wall outlet is overloaded, it may cause a re.

Please use a dedicated circuit for the refrigerator.

5. Please make sure the outlet is properly grounded.

Particularly in a wet or damp area.

6. Use standard electrical components.

7. Make sure hooks are correctly engaged.

Remove dust and foreign materials from the housing

and connecting parts.

8. Do not fray, damage, run over, kink, bend, pull out, or

twist the power cord.

9. Please check for evidence of moisture intrusion in the

electrical components. Replace the parts or mask with

insulation tape if moisture intrusion was conrmed.

10. Do not touch the icemaker with hands or tools to

conrm the operation of geared motor.

11. Do not suggest that customers repair their refrigerator

themselves. This work requires special tools and

knowledge. Non-professionals could cause re, injury,

or damage to the product.

12. Do not store ammable materials such as ether,

benzene, alcohol, chemicals, gas, or medicine in the

refrigerator.

13. Do not put anything on top of the refrigerator,

especially something containing water, like a vase.

14. Do not put glass bottles with full of water into the

freezer. The contents will freeze and break the glass

bottles.

15. When you scrap or discard the refrigerator, remove the

doors and dispose of it where children are not likely to

play in or around it.

WARNINGS AND PRECAUTIONS FOR SAFETY

- 3 -

SPECIFICATIONS

-4-

ITEMS SPECIFICATIONS

DIMENSIONS 912

829

1771 mm

(35.9x32.6x69.7in)

).sbl(gk301THGIEWTEN

COOLING SYSTE Fan Cooling

TEMPERATURE CONTROL

DEFROSTING SYSTEM

Heater Defrost

enatneP-olcyCNOITALUSNI

COMPRESSOR

EVAPORATOR

CONDENSER

REFRIGERANT

ITEMS SPECIFICATIONS

7-HXEVEISRALUCELOMREIRD

CAPILLA R Y TUBE ID Ø0.8 5

FIRST DEFROST

DEFROST CYCLE

DEFROSTING DEVICE

ANTI-SWEAT HEATER

Dispenser Heater

ANTI-FREEZING HEATER

Damper Heater

FREEZER LAMP

REFRIGERATOR LAMP

DISPENSER LAMP

724 mm (28 1/2in.)

1004 mm (39 1/2in.)

912 mm (35.9in.)

779 mm (30 5/8in.)

829 mm (32 5/8in.)

897 mm (35 5/16 in.)

1261 mm (49 5/8in.)

1741.5 mm (68 1/2in.)

1746.5 mm (68 3/4in.)

1771 mm (69 11/16 in.)

weiVpoTweiVtnorF

PTC Starting Type

Micom Control

Full Automatic

Fin Tube Type

Wire Condenser

R134a(185g)(6.5oz)

LUBRICATING OIL FREOL @ 10G(310cc)

4-5 Hours

13-15 Hours

Heater, Sheath

Dispenser Duct Door Heater

Water Tank Heater

40W (1 EA)

40W (4 EA)

15W (1 EA)

286.6

PARTS IDENTIFICATION

-5-

Frame Display

Dispenser Lamp

Ice & Water

Dispenser Button

PWB Cover

Water Tubes

Freezer

Compartment

Refrigerator

Compartment

Humidity Switch

Lamp

Shelf

Snack Drawer

Vegetable Drawer

/Meat Drawer

Door Rack

Shelf

Door Rack

Wine Holder

Lamp

Lower Cover

Dairy Product Corner

Door Rack

Drawer

(Wire/Plastic)

Automatic

Icemaker

Door Rack

Shelf

Bottle Guide

Door Rack

Water Filter

Egg Box

1. How to Adjust Door Height of Refrigerator

Make the refrigerator level first. (If the refrigerator is not installed on a flat floor, the height of freezer and refrigerator

door may not be the same.)

1. If the freezer door is lower than the refrigerator

door:

2. If the freezer door is higher than the refrigerator

door:

HOW TO INSTALL REFRIGERATOR

- 6

1 2

2. Filter

Replace the filter when the indicator light comes on or the

performance of the icemker or water dispenser decreases

noticeably.

After changing the water filter cartridge, reset the water

filter status display and indicator light by pressing and

holding the BUTTON for 3 seconds.(page 18)

1. Remove the old cartridge.

Twist the knob of the cartridge counter clockwise.

When the cartridge is removed, you will feel it click .

Pull out the cartridge.

NOTE: There will be some water(25cc) in the filter

cartridge. Some spilling may occur. Catch it in a

bowl or towel.

2. Replace with a new cartridge.

Take the new cartridge out of its packaging and remove

protective cover from the o-rings.

With cartridge knob in the vertical position, push the new

filter cartridge into the cover until it stops.

If you can’t turn the filter from side to side, it isn’t fully

inserted. Push it in firmly and twist it into place. You will

hear the snap when it clicks into place.

Using the handle, twist the cartridge clockwise about 1/4

turn.

3. Flush the Water System After Replacing Filter Dispense

water through the water dispenser for 3 minutes to

purge the system.

There may be a little air in the line, causing noise or

hissing. Run the water at the dispenser until the hissing

stops to purge the air from the system.

NOTE: - To purchase replacement water filter cartridges,

visit your local appliance dealer or part distributor.

- You can also visit our website :

www.lgappliances.com or call 1-877-714-7481.

HOW TO INSTALL REFRIGERATOR

- 7-

3. How to Control the Amount of Water Supplied to Icemaker.

3-1. Confirm the amount of water supplied to the icemaker.

1. Pull out the ice bin shelf in the upper part of the freezer compartment.

Caution : •Do not put hands or tools into the chute to confirm

the operation of geared motor.

It may damage the refrigerator or hurt your hands.

2. Apply electricity after connecting water pipe.

1) Press test switch under the icemaker for two seconds as shown below.

2) The bell rings(ding~dong) and ice tray rotates and water comes out from the icemaker water tube.

3) The water shall be supplied two or three times into the tray. The amount of water supplied for each time is small.

Put a water container under the ice tray and press test switch.

4) When ice tray rotates, the water in it will spill. Collect the spilt water and throw away into the sink.

5) When ice tray has finished rotation, water comes out from the water tube. Confirm the amounts of water in the ice tray.

(refer to fig. The optimum amount of water is 110cc)

* It is acceptable if the adjusted level of water is a bit smaller than optimum level.

HOW TO INSTALL REFRIGERATOR

- 8-

Test Switch

Confirm the amount

of water

Ice maker

Too much

Too little

Optimum level

3-2. Control the amount of water supplied to the icemaker.

Caution : • Please unplug the power cord from the wall outlet and wait for more than three minutes before disconnecting

PWB cover as 310V is applied in the control panel.

1. Disconnect PWB cover from the upper part of the refrigerator.

2. Adjust the amount of water supplied by using DIP switch.

Water Supplying Time Control Option

1) The water supplying time is set at ve seconds when the refrigerator is delivered.

2) The amount of water supplied depends on the setting time and water pressure (city water pressure).

3) If ice cube is too small, increase the water supplying time. This happens when too small water is supplied into the ice tray .

4) If ice cube sticks together, decrease the water supplying time. This happens when too much water is supplied into the ice tray.

Caution : When adjusting the amount of water supplied, adjust step by step. Otherwise the water may spill over.

3. When adjustment of control switch for the amount of water supplied is complete, check the level of water in the ice tray.

HOW TO INSTALL REFRIGERATOR

-9-

(+) Driver

Switch ON

Switch OFF 2 3

Conrm the amount

of water

Optimum level

* The quantity of water

supplied depends on DIP

switch setting conditions

and water pressure as it

is a direct tap water

connection type. (the

water supplied is

generally 80 cc to 120 cc)

* DIP switch is on the main

PWB.

LSC27926**

No DIP SWITCH SETTING

S1 S2 S3

OFF OFF OFF 6.5 SEC

ON OFF OFF 5.5 SEC

OFF ON OFF 6 SEC

ON ON OFF 7 SEC

OFF OFF ON 7.5 SEC

ON OFF ON 8 SEC

OFF ON ON 9 SEC

ON ON ON 10 SEC

WATER

SUPPLY TIME

REMARKS

1. Monitor Panel

MICOM FUNCTION

-10 -

ICE PLUS DISPENSER FREEZER REFRIGERATOR LIGHT/FILTER ALARM/LOCK 3SECS

Dispenser selection

button

Ice Plus

function selection button

Alarm button and

Lock button

Lamp On/O button/

Filter status display RESET button

Temperature adjustment button

for refrigerator compartment

Temperature adjustment button

for freezer compartment

°C

°F

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