LG LRSPC2031xx Service Manual

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CAUTION

PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK BEFORE CHECKING OR OPERATING THE REFRIGERATOR.

REFRIGERATOR

SERVICE MANUAL

Ref. No.

GR-L207ERA

MODEL: LRSPC2031BS

COLOR: EMBO BISQUE

http://biz.lgservice.com

GR-L247ERA

LRSPC2331BS

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

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

PARTS IDENTIFICATION..................................................................................................................................................... 12

HOW TO INSTALL THE REFRIGERATOR.......................................................................................................................... 18

HOW TO ADJUST DOOR HEIGHT OF THE REFRIGERATOR........................................................................................ 18

HOW TO INSTALL WATER PIPE........................................................................................................................................19

HOW TO CONTROL THE AMOUNT OF WATER SUPPLIED TO THE ICEMAKER......................................................... 23

MICOM FUNCTION .............................................................................................................................................................. 25

MICOM CIRCUIT DESCRIPTION......................................................................................................................................... 31

DESCRIPTION OF PWB CIRCUIT SENSOR RESISTANCE CHARACTERISTIC TABIE PWB PARTS DRAWING AND LIST PWB CIRCUIT DRAWING

ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR...........................................................................53

WORKING PRINCIPLES FUNCTION OF ICE MAKER ICE MAKER TROUBLESHOOTING ICE MAKER CIRCUITS

CIRCUIT................................................................................................................................................................................ 58

TROUBLE DIAGNOSIS........................................................................................................................................................ 60

TROUBLE SHOOTING ......................................................................................................................................................60

FAULTS.............................................................................................................................................................................. 70

COOLING CYCLE HEAVY REPAIR................................................................................................................................... 87

HOW TO DEAL WITH CLAIMS.......................................................................................................................................... 94

HOW TO DISASSEMBLE AND ASSEMBLE....................................................................................................................... 99

DOOR................................................................................................................................................................................. 99

HANDLE........................................................................................................................................................................... 100

SHROUD, GRILLE FAN................................................................................................................................................... 100

ICEMAKER....................................................................................................................................................................... 100

DISPENSER..................................................................................................................................................................... 101

WATER TANK AND WATER LINE.................................................................................................................................... 103

HOME BAR ...................................................................................................................................................................... 103

EXPLODED VIEW .............................................................................................................................................................. 104

REPLACEMENT PARTS LIST............................................................................................................................................ 113

CONTENTS

- 2 -

Please observe the following safety precautions in order to use safely and correctly the refrigerator and to prevent accident and danger during repair.

1. Be care of an electric shock. Disconnect power cord from wall outlet and wait for more than three minutes before replacing PWB parts. Shut off the power whenever replacing and repairing electric components.

2. When connecting power cord, please wait for more than five minutes after power cord was disconnected from the wall outlet.

3. Please check if the power plug is pressed down by the refrigerator against the wall. If the power plug was damaged, it may cause fire or electric shock.

4. If the wall outlet is over loaded, it may cause fire. Please use its own individual electrical outlet for the refrigerator.

5. Please make sure the outlet is properly earthed, particularly in wet or damp area.

6. Use standard electrical components when replacing them.

7. Make sure the hook is correctly engaged. Remove dust and foreign materials from the housing and connecting parts.

8. Do not fray, damage, machine, heavily bend, pull out, or twist the power cord.

9. Please check the evidence of moisture intrusion in the electrical components. Replace the parts or mask it with insulation tapes if moisture intrusion was confirmed.

10. Do not touch the icemaker with hands or tools to confirm the operation of geared motor.

11. Do not let the customers repair, disassemble, and

reconstruct the refrigerator for themselves. It may cause accident, electric shock, or fire.

12. Do not store flammable materials such as ether, benzene, alcohol, chemicals, gas, or medicine in the refrigerator.

13. Do not put flower vase, cup, cosmetics, chemicals, etc., or container with full of water on the top of the refrigerator.

14. Do not put glass bottles with full of water into the freezer. The contents shall freeze and break the glass bottles.

15. When you scrap the refrigerator, please disconnect the door gasket first and scrap it where children are not accessible.

WARNINGS AND PRECAUTIONS FOR SAFETY

- 3 -

SPECIFICATIONS

- 4 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) 890(W)X840(D)X1750(H) NET WEIGHT (kg) 128 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

Heater Defrost INSULATION Cyclo-Pentane COMPRESSOR P.T.C. Starting Type EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R134a (185g) LUBRICATING OIL FREOL @15G (320 cc) DRIER 1Ø0.83 CAPILLARY TUBE MOLECULAR SIEVE XH-7

ITEMS SPECIFICATIONS

FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L - Cord

ANTI SWEAT HEATER Dispenser Duct Door Heater

Dispenser Heater Home Bar Heater

ANTI-FREEZING HEATER Water Tank Heater

Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

1. Ref No. : GR-P247

948 890

1750

1720

685

745

796

840

1218.5

1750

SPECIFICATIONS

- 5 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) 890(W)X755(D)X1750(H) NET WEIGHT (kg) 123 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

2. Ref No. : GR-P207

ITEMS SPECIFICATIONS

FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L - Cord

ANTI SWEAT HEATER Dispenser Duct Door Heater

Dispenser Heater Home Bar Heater

ANTI-FREEZING HEATER Water Tank Heater

Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

948 890

1750

1720

600

660

711

755

1133.5

1750

SPECIFICATIONS

- 6 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) 890(W)X840(D)X1750(H) NET WEIGHT (kg) 125 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

Heater Defrost INSULATION Cyclo-Pentane COMPRESSOR P.T.C. Starting Type EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R134a (185g) LUBRICATING OIL FREOL @15G (320 cc) DRIER 1Ø0.83

ITEMS SPECIFICATIONS

CAPILLARY TUBE MOLECULAR SIEVE XH-7 FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L-Cord

ANTI SWEAT HEATER Dispenser Duct Door Heater

Dispenser Heater

ANTI-FREEZING HEATER Water Tank Heater

Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

3. Ref No. : GR-L247

948 890

1750

1720

685

745

796

840

1218.5

1750

SPECIFICATIONS

- 7 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) 890(W)X755(D)X1750(H) NET WEIGHT (kg) 120 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

Heater Defrost INSULATION Cyclo-Pentane COMPRESSOR P.T.C. Starting Type EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R134a (185g) LUBRICATING OIL FREOL @15G (320 cc) DRIER 1Ø0.83

ITEMS SPECIFICATIONS

CAPILLARY TUBE MOLECULAR SIEVE XH-7 FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L-Cord

ANTI SWEAT HEATER Dispenser Duct Door Heater

Dispenser Heater

ANTI-FREEZING HEATER Water Tank Heater

Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

4. Ref No. : GR-L207

948 890

1750

1720

600

660

711

755

1133.5

1750

SPECIFICATIONS

- 8 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) 890(W)X840(D)X1750(H) NET WEIGHT (kg) 117 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

ITEMS SPECIFICATIONS

FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L - Cord ANTI SWEAT HEATER Home Bar Heater ANTI-FREEZING HEATER Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

1. Ref No. : GR-C247

948 890

1750

1720

685

745

796

840

1218.5

1750

SPECIFICATIONS

- 9 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) 890(W)X755(D)X1750(H) NET WEIGHT (kg) 112 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

2. Ref No. : GR-C207

ITEMS SPECIFICATIONS

FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L - Cord ANTI SWEAT HEATER Home Bar Heater ANTI-FREEZING HEATER Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

948 890

1750

1720

600

660

711

755

1133.5

1750

SPECIFICATIONS

- 10 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) 890(W)X840(D)X1750(H) NET WEIGHT (kg) 114 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

Heater Defrost INSULATION Cyclo-Pentane COMPRESSOR P.T.C. Starting Type EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R134a (185g) LUBRICATING OIL FREOL @15G (320 cc) DRIER 1Ø0.83

ITEMS SPECIFICATIONS

CAPILLARY TUBE MOLECULAR SIEVE XH-7 FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L-Cord ANTI-FREEZING HEATER Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

3. Ref No. : GR-B247

948 890

1750

1720

685

745

796

840

1218.5

1750

SPECIFICATIONS

- 11 -

ITEMS SPECIFICATIONS

DIMENSIONS (mm) B207 890(W)X755(D)X1750(H)

B197 890(W)

725(D)X1750(H) NET WEIGHT (kg) 109 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic

Heater Defrost INSULATION Cyclo-Pentane COMPRESSOR P.T.C. Starting Type EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R134a (185g) LUBRICATING OIL FREOL @15G (320 cc) DRIER 1Ø0.83

ITEMS SPECIFICATIONS

CAPILLARY TUBE MOLECULAR SIEVE XH-7 FIRST DEFROST 4 - 5 Hours DEFROST CYCLE 13 - 15 Hours DEFROSTING DEVICE Heater, Sheath

Heater, L-Cord ANTI-FREEZING HEATER Damper Heater FREEZER LAMP 40W (1 EA) REFRIGERATOR LAMP 40W (1 EA) DISPENSER LAMP 15W (1 EA)

4. Ref No. : GR-B207 / GR-B197

948 890

1750

1720

600

660

711

755

1133.5

1750

PARTS IDENTIFICATION

- 12 -

Cover Hinge

Home Bar

Frame Display

Cover PWB

Water Tube

Dispenser Lamp

Ice & Water

Dispenser Button

Conversion Switch

(Meats/Vegetables)

Humidity Switch

Lamp

Shelf

Egg Box Snack drawer

Vegetable drawer

Vegetable drawer/Meat drawer

Door rack

Refreshment center (optional)

Shelf

Door rack Wine holder (optional)

Lamp

Shelf

Drawer

or Shelf

(optional)

Lower Cover

Milk product corner

Door rack

Drawer

Freezer

Compartment

Refrigerator

Compartment

Automatic

ice maker

Door rack

1. Ref No. : GR-P247ER, GR-P207ER

2. Ref No. : GR-P247EQ, GR-P207EQ

PARTS IDENTIFICATION

- 13 -

Cover Hinge

Home Bar

Frame Display

Cover PWB

Water Tube

Dispenser Lamp

Ice & Water

Dispenser Button

Humidity Switch

Lamp

Shelf

Egg Box Snack drawer

Vegetable drawer

Vegetable drawer/Meat drawer

Door rack

Refreshment center (optional)

Shelf

Door rack Wine holder (optional)

Lamp

Shelf

Drawer

or Shelf

(optional)

Lower Cover

Milk product corner

Door rack

Drawer

Freezer

Compartment

Refrigerator

Compartment

Automatic

ice maker

Door rack

Conversion Switch

(Meats/Vegetables)

PARTS IDENTIFICATION

- 14 -

Cover Hinge

Cover PWB

Frame Display

Water Tube

Dispenser Lamp

Ice & Water

Dispenser Button

Humidity Switch

Lamp

Shelf

Egg Box Snack drawer

Vegetable drawer

Vegetable drawer/Meat drawer

Door rack

Guide bottle

Shelf

Door rack Wine holder (optional)

Lamp

Shelf

Drawer

or Shelf

(optional)

Lower Cover

Milk product corner

Door rack

Drawer

Freezer

Compartment

Refrigerator

Compartment

Automatic

ice maker

Door rack

Conversion Switch

(Meats/Vegetables)

3. Ref No. : GR-L247ER, GR-L207ER

4. Ref No. : GR-L247EQ, GR-L207EQ

PARTS IDENTIFICATION

- 15 -

Cover Hinge

Cover PWB

Frame Display

Water Tube

Dispenser Lamp

Ice & Water

Dispenser Button

Conversion Switch

(Meats/Vegetables)

Humidity Switch

Lamp

Shelf

Egg Box Snack drawer

Vegetable drawer

Vegetable drawer/Meat drawer

Door rack

Guide bottle

Shelf

Door rack Wine holder (optional)

Lamp

Shelf

Drawer

or Shelf

(optional)

Lower Cover

Milk product corner

Door rack

Drawer

Freezer

Compartment

Refrigerator

Compartment

Automatic

ice maker

Door rack

PARTS IDENTIFICATION

- 16 -

Cover Hinge

Home Bar

Cover PWB

Conversion Switch

(Meats/Vegetables)

Humidity Switch

Lamp

Shelf

Egg Box Snack drawer

Vegetable drawer

Vegetable drawer/Meat drawer

Door rack

Refreshment center (optional)

Shelf

Door rack Wine holder (optional)

Lamp

Shelf

Drawer

or Shelf

(optional)

Lower Cover

Milk product corner

Door rack

Drawer

Freezer

Compartment

Refrigerator

Compartment

Door rack

1. Ref No. : GR-C247EC, GR-C207EC

PARTS IDENTIFICATION

- 17 -

Cover Hinge

Cover PWB

Conversion Switch

(Meats/Vegetables)

Humidity Switch

Lamp

Shelf

Egg Box Snack drawer

Vegetable drawer

Vegetable drawer/Meat drawer

Door rack

Shelf

Door rack Wine holder (optional)

Lamp

Shelf

Drawer

or Shelf

(optional)

Lower Cover

Milk product corner

Door rack

Drawer

Freezer

Compartment

Refrigerator

Compartment

Door rack

3. Ref No. : GR-B247, GR-B207, GR-B197

1. How to Adjust Door Height of Refrigerator

■ Make the refrigerator level first. (If the refrigerator is not installed on the flat floor, the height of freezer and refrigerator door may not be the same.)

1. If the height of freezer door is lower than that of refrigerator compartment :

2. If the height of freezer door is higher than that of refrigerator compartment :

Insert a driver

B into the groove A of adjusting screw and rotate driver in arrow direction (clockwise) until the refrigerator becomes horizontal.

Insert a driver B into the groove A of adjusting screw and rotate driver in arrow direction (clockwise) until the refrigerator becomes horizontal.

HOW TO INSTALL REFRIGERATOR

- 18 -

Adjusting Screw

Driver

Height

Difference

Height Difference

2. How to Install Water Pipe

■ Before Installation

1. The icemaker requires the water pressure of 1.5 -

8.5kgf/cm

. (It is acceptable if city water fills a cup of

180cc with water for 3 seconds)

2. Install booster pump where the city water pressure is below 1.5kgf/cm

for normal operation of water and ice

dispenser.

3. The total length of water pipe shall be less than 12m. Do not bend the pipe at right angle. If the length is more than 12m, there will be troubles on water supply due to water pressure drop.

4. Please install water pipe where there is no heat around.

2-1. When connecting directly to the water tap.

■ Please confirm the following installation parts.

HOW TO INSTALL REFRIGERATOR

- 19 -

Class. Shape and Spec. Nomenclature P/No Remarks

Valve Feed 5221JA3001A Common Use

Connector, (MECH) Pipe 4932JA3003A Conversion Connector(3/4") 6631JA3004A

No Holes

Balance Conector(3/4") 6631JA3004B Packing(ø24x3t) 3920JA3001B

Connector, (MECH) Pipe 4932JA3003B

Conversion Connector(W25) 6631JA3004C

No Holes

Balance Conectoor(W25) 6631JA3004D Packing(ø23x3t) 3920JA3001A

Connector, (MECH) Pipe 4932JA3003C Conversion Connector(W28) 6631JA3004E

No Holes

Balance Conector(W28) 6631JA3004F Packing(ø26x3t) 3920JA3001C

Connector, (MECH) Pipe 4932JA3003D Conversion Connector(1/2") 6631JA3004G No Holes Balance Conector(1/2") 6631JA3004H Packing(ø19x3t) 3920JA3001D

Convertible Water Valve

Water Connector

Valve Feed Rubber, Packing Connector, Pipe

Tape, TeflonConnector, Pipe

1. Connection of Pipe Connector A and B.

1) Turn off main valve of water pipe.

2) Disconnect water tap from piping by loosening nuts.

3) Connect pipe connector A and B to piping after sealing the pipe connector with sealing tapes.

4) Connect feed valve to pipe connector A.

5) If there is only one tap water pipe, connect pipe connector A only and install feed pipe.

2. Water Supply

1) After the installation of feed water, plug the refrigerator to the earthered wall outlet, press the water dispenser button for 2 - 3 minutes, and confirm that the water comes out.

Caution : • Feed pipe should be connected to cold water

line. If it is connected to hot water line, trouble may occur.

• Please check rubber packing when connecting feed pipe.

2) Check leakage at connecting part, then arrange water tube and locate the refrigerator at its regular place if there is no leaking.

HOW TO INSTALL REFRIGERATOR

- 20 -

Single Lever Type Faucet (general)

Feed

Valve

General Type

Feed

Valve

Two Hands Type Faucet Single Lever Type Faucet (one

hole, tech type and hand spray)

Feed

Valve

Feed

Valve

Pipe Connector B

Hot Water

Pipe Connector A

Feed Valve

Cold Water

How to wind

Sealing Tapes.

Water Tube

Nut

3. When customer uses bottled water.

*If customer wants to use bottled water, extra pump should be installed as shown below.

1. The pump system should not be on the floor (it may cause noise and vibration). Securely fasten the inlet and outlet nuts of pump.

2. If there is any leakage after installation, cut the water tube at right angle and reassemble.

3. When put the water tube end into the bottle, leave a clearance between bottle bottom and water tube end.

4 Check water coming out and any leakage.

Caution : • If feed tube is more than 4m, less water will come out due to pressure drops.

• Use standard feed tube to prevent leaking.

■ Outternal Filter

1. Filter Fixation

1) Connect feed tube to the filter outlet and water valve connecting tube.

2) Fix the filter at proper place around the sink where it is easy to replace the filter and to receive the cleaning water. Please consider the length of tube shall be less than 12m when locating filter.

3) When fixing the filter, use fixing plate and cable depending on the surrounding conditions.

2. Filter Cleaning

1) Connect feed tube to the inlet of feed valve and filter.

2) Clean the main valve and feed valve with water for at least one minute until clean water comes out.

HOW TO INSTALL REFRIGERATOR

- 21 -

Water Tube

Nut

Inlet

Outlet

Fixing Plate Fixing Plate

Fixing Cable

Water

Filter

Filter Inlet

Feed Valve

Hot Water

Cold Water

■ Install Water Filter (Applicable to some models only)

■ Before Installing water filter

1. Before installing the filter, take out the top shelf of the refrigerator after tilting it to the direction (a) and lifting it to the direction (b) and move it to the lower part.

2. Remove the lamp cover by pressing the protrusion under the cover and pulling the cover to the front.

■ Installing water filter

1. Initial installation of water filter Remove the filter substitute cap by turning it counterclockwise (a) by 90 degrees and pulling it down.

Note : Keep it safe to use it later when you do not use the

filter.

Remove the red cap from the filter and attach the sticker. Insert the upper part of the filter (a) after aligning with the guideline marked on the control box, and fasten it by turning it clockwise by 90 degrees.

Note : Check that the guideline and the fastening

indication line are aligned.

2. Replacement of water filter While holding the lower part of the filter, turn it counterclockwise (a) by 90 degrees and pull it down.

Note : Check that the guideline and the loosening

indication line are aligned.

■ After installing water filter

Reassemble the lamp cover and the top shelf of the refrigerator. To place the top shelf of the refrigerator, raise the front part of the shelf a bit so that the hook of the shelf is fit into the groove. In order to clean the water filter system, drain water for about 3 min.

Note : Then open the door of the refrigerator and check for

water droppings on the shelf under the filter.

HOW TO INSTALL REFRIGERATOR

- 22 -

Control box

Aligning with the guide line and the fastening indication line

Control box

Aligning with the guide line and the loosening indication line

Separation of red cap

Adhesion sticker

Substitute cap

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 bank 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 refrigerator or hurt hands.)

• Check the operation of motor with its operation noise.

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

- 23 -

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 five 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

- 24 -

SWITCH NO Water Suppling

S/W1 S/W2 S/W3 Time

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.

(+) Driver

Switch ON Switch OFF

Confirm the amount

of water

Optimum level

1. Monitor Panel

1-1. GR-P247, GR-P207, GR-L247, GR-L207 1-2. GR-C247, GR-C207, GR-B247, GR-B207, GR-B197

2. Description of Function

2-1. Funnction of Temperature Selection

* The temperature can vary ±3 °C depending on the load condition. *( ) : 127V/60Hz, 110~115V/60Hz, 115V/60Hz Rating ONLY.

*< > : TAIBEI

1. When power is initially applied or reapplied after power cut, “Medium” is automatically selected.

2. When the temperature selection switch in the freezer and refrigerator compartments is pressed, the light is on in the following sequence: "Medium"

➝ "Medium Max" ➝ "Max" ➝"Min" ➝ "Medium Min" ➝ "Medium"

3. The temperature setting condition of freezer and refrigerator compartments shall not be indicate in the standard model (GR-P247, GR-P207, GR-L247, GR-L207, GR-C247, GR-C207, GR-B247, GR-B207) when refrigerator or home bar door is closed.

MICOM FUNCTION

- 25 -

FRZ

Temp

REF

Temp

SELECT

Max

Min

Function Monitor

Freezer compartment

temperature control Button

Refrigerator compartment

temperature control Button

Dispenser selection button

123455

Max MaxMin

4321

FRZ

Temp

REF

Temp

Division Power Initially On 1st Press 2nd Press 3th Press 4th Press

Change of Indication Lamp

Temperature Control

Medium Medium Max Max Min Medium Min

Freezer -19 °C -22 °C -23 °C

-15 °C -17 °C

Control (-18 °C) (-20.5 °C) (-22 °C)

<-19 °C> <-20.5 °C> <-22 °C> <-16.5 °C> <-18 °C>

Refrigeration

3 °C 1.5 °C 0°C

6 °C

4.5 °C

Control (7 °C)

<2 °C> <1 °C> <0 °C> <4.5 °C> <3 °C>

FRZ

Temp

Max

Min

REF

Temp

FRZ

Temp

Max

Min

REF Temp

FRZ

Temp

Max

Min

REF

Temp

FRZ

Temp

Max

Min

REF

Temp

FRZ

Temp

Max

Min

REF

Temp

2-2. Control of Variable Speed Fan in the Refrigerator Compartment

1. Fan motor in the freezer compartment shall change from standard to high speed rpm in order to increase cooling speed and load corresponding speed.

2. High speed rpm is only used for the initial power application and load corresponding operation. But standard rpm is used in the general working conditions.

3. Fan motor in the freezer compartment operates normally when freezer, refrigerator, or home bar door opens and fan motor in the freezer compartment operates (the speed changes from high to standard rpm if fan motor operates at high speed rpm). But fan motor in the freezer compartment stops when refrigerator or home bar door is open and refrigerator compartment door is closed.

2-3. Door Opening Alarm

1. Buzzer warns when freezer, refrigerator, or home bar door is kept open for more than 1 minute.

2. Buzzer warns 3 times at 0.5 second interval and then 3 times at 0.5 second on and off in every 30 seconds if door is kept open for more than 1 minute.

3. Warning is released when freezer, refrigerator, or home bar door is closed during door opening alarm.

2-4 Button Selection Buzzer Sound

1. “Bell” sounds when button on the front display is pressed.

2-5. Forced Start, Forced Defrost Buzzer Warning

1. When test button in the main PWB is pressed, “beep” sounds.

2. When forced start is selected, warning sounds three times for 0.2 second on and 1.8 seconds off.

3. When forced defrost is selected, warning sounds three times in the following cycle: 0.2 second on and 0.2 second off, 0.2 second on and 0.2 second off, and 0.2 second on and 1.0 second off.

2-6. Functions of Defrost

1. Defrost starts whenever the compressor operation time accumulates to seven to seven and a half hours.

2. Defrost starts whenever the compressor operation time accumulates to four to four and a half hours if power is initially applied (or reapplied after power cut).

3. Defrost completes when the temperature of defrost sensor reaches at 5 °C. Faulty defrost is indicated if the defrost sensor does not reach at 5 °C after 2 hours of defrosting.

4. Defrost does not work when defrost sensor is out of order (wire cut or short-circuit).

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Closed Open Closed Open

3Times 3Times 3Times 3Times

Closed

Within one minute one minute

Seconds

Freezer,

Refrigerator,

Home Bar Door

Buzzer

2-7. Electric Equipment Sequential Operation

Electric equipment such as compressor, defrost heater, cooling fan, step motor damper, etc. operates in the following sequence when power is initially applied and test is completed in order to reduce noise and parts damage.

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Function Operation Sequence Remarks

When power isinitially applied TEST MODE

Defrost sensor temperature is above 10 °C (purchased or

house-moving)

If there is any error in functions, initial starting does not work.

If switch is pressed one more or defrost sensor temperature is above +5 °C, it returns to test mode and restarts. (compressor shall operate after 7 minutes)

Defrost sensor temperature is below 10 °C (power cut or service)

Test Mode 1 (Forced Start)

Test Mode 2 (Check Freezer fan )

Test Mode 3 (Forced defrost)

POWER

COMP

WATER

TANK

HEATER

FAN 1400 (High Speed

Operation)

FAN 1400 (High Speed

Operation)

FAN 1400 (High Speed

Operation)

OFF

WATER

TANK

HEATER

OFF

FAN 1170

(Standard

Operation)

FAN 1170

(Standard

Operation)

OFF

STEP

MOTOR

DAMPER

STEP

MOTOR

DAMPER

STEP

MOTOR

DAMPER

OPEN

STEP

MOTOR

DAMPER

HOME

BAR

HEATER

POWER

DEFROST

HEATER

HOME

BAR

HEATER

OFF

HOME

BAR

HEATER

TEST

S/W

(Press

Once)

COMP

TEST

S/W (Press Twice)

COMP

OFF

0.5

sec.

0.3

sec.

0.3

sec.

0.3

sec.

0.5

sec.

0.3

sec.

DEFROST

HEATER

OFF

DEFROST

HEATER

sec.

0.3

sec.

COMP

FAN 1170

(Standard Operation)

STEP

MOTOR

DAMPER

sec.

0.3

sec.

0.3

sec.

0.3

sec.

0.3

sec.

0.3

sec.

0.3

sec.

0.3

sec.

0.3

sec.

OTHER LOADS

OFF

TEST

S/W (Press

Three

Times)

0.3

sec.

0.3

sec.

2-8. Function of Trouble Diagnosis

1. Function of trouble diagnosis is to make the repair service easy when the refrigerator is out of order during service.

2. The function control button does not work but the recognition sound is heard when the refrigerator is out of order.

3. It returns to normal conditions when trouble code led is off. (reset)

4. Trouble code is indicated by the freezing temperature indicator led in the refrigerator display. All leds except trouble code are off.

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FRZ

TEMP

REF

TEMP

SELECT

Max

Min

TROUBLE

CODE INDEX

A B C D

Trouble Code Indicator

Operation conditions during Trouble

No. T rouble Troubles Freezer Defrost

Step motor

F4 F3 F2 F1

Compressor

Fan Heater Damper

Abnormal Freezer

lll

Freezer sensor short

15 min. on/

Standard

ˇ ˇ

sensor.

15 min. off

RPM

Abnormal Refrigerator

sensor 1 (R1)

lll

Refrigerator sensor 1 short circuit

Standard

Note 2)

(Upper part in the RPM refrigerator compartment)

Abnormal Refrigerator

sensor 2

(lower part

Note 1)

Refrigerator sensor 2 short circuit

Standard

ˇ ˇ

in the refrigerator RPM compartment)

Abnormal Defrost

lll

Defrost sensor short circuit

Standard No

sensor RPM defrosting Failed defrosting Defrost Heater , Temperature Fuse

 

short circuit.

Standard

ˇ ˇ

Unplugged Connector RPM (Indicated 4 hour later after trouble)

Abnormal Open Air

Open air temperature detecting sensor

6 T emperature Note 1)

short circuit

ˇ ˇ ˇ

Detecting sensor

Abnormal

Note 1)

Defrost sensor

short circuit.

ˇ ˇ ˇ ˇ

ice making sensor Abnormal Faulty I

ce Maker Unit Motor or

8 ice maker unit

Note 1)

Hall IC, L/Wire short circuit. ˇ

Standard

ˇ ˇ

Faulty motor driving circuit.

RPM

 : On l : Off ˇ : Normal

Note 1) When open air temperature detecting sensor, refrigerator sensor 2, ice maker unit, ice making sensor are

abnormal, it is not indicated in the trouble code. But it is indicated while checking LED (press freezer and refrigerator temperature control buttons for more than 1 second at the same time).

Room Temperature

Normal :

LED On.

Detection Sensor Abnormal :

LED Off.

Refrigerator Sensor 2

Normal :

LED On.

(lower shelf) Abnormal :

LED Off.

Home Bar Sensor

Normal :

LED On.

Abnormal :

LED Off.

Ice Maker Unit

Normal :

LED On.

Abnormal :

LED Off.

Note 2) When refrigerator sensor is abnormal, it opens for 10 minutes and closes for 15 minutes.

2-9. Test Function

1. Test function is to check the function of PWB and products and to find defective parts when the refrigerator is out of order.

2. Test button is on the main PWB of the refrigerator. Test mode completes after 2 hours in maximum and returns to normal conditions.

3. Function control button does not work but button recognition sound is heard during the test mode.

4. When test mode is completed, unplug and replug the power cord to return to the normal conditions.

5. When sensor is abnormal in the test mode, test mode is released and trouble code is indicated.

6. Test mode does not work even test button is pressed when trouble code indicator is on.

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Mode Operation Contents Remarks

Test 1

Test 2

Test 3

Normal

Press test button once

Press test button once in Test Mode 1

Press test button once in Test Mode 2

Press test button onec in test mode 3

1. Continuous compressor operation

2. Continuous freezer fan (high rpm) operation

3. Defrost heater off.

4. All display LEDs are on.

5. Electronic stepping motor damper open (baffle is open).

1. Compressor off.

2. Freezer fan (high rpm) off.

3. Freezer fan (standard rpm) on.

4. Defrost heater off.

5. “Medium Weak” led in freezer and

refrigerator temperature indicators are on.

6. Step motor damper open condition (baffle is open)

1. Compressor is off.

2. Freezer fan off.

3. Defrost heater on.

4. “Medium” leds in freezer and refrigerator temperature indicators are on.

5. Step motor damper closed condition (baffle is open)

Return to initial conditions

Forced start

Check fan in the freezer compartment

• Return to normal conditions when defrost sensor is above 5 °C.

• Forced defrost.

Compressor starts after seven minutes.

A A B B

C D

The rest of LEDs are all on

* LED check function- When freezer and refrigerator temperature control buttons are pressed for more than 1 second at the

same time, all LEDS on the display are on. And it returns to the normal conditions when the buttons are released.

* Check of freezer fan rpm variation- Freezer fan speed changes from high speed to standard speed and vice versa for 30

seconds whenever freezer and refrigerator temperature control buttons are pressed at the same time for more than 1 second when freezer fan is in operation and returns to the previous rpm.

2-10. Functions of Ice Dispenser and Water Dispenser

1. Ice and cold water are available without opening refrigerator door.

2. The desired ice (crushed or cube) or cold water are dispensed when dispenser press button (rubber button) is pressed after selection of ice or cold water. When ice is selected, duct door opens by electric solenoid when dispenser press switch is pressed. When dispenser press switch is released, duct door closes after it opens for 5 seconds.

3. Ice and water dispensing function stops when freezer door is open.

4. Geared motor and solenoid are automatically off if there is no signal after 3 minutes when ice (crushed and cube) or water is selected and dispenser switch is pressed down. Solenoid (duct door) stops after 5 seconds when solenoid is off. (in order to protect short circuit from solenoid heat generation)

5. Dispenser Lamp On/Off Function. The dispenser lamp shall be on or off whenever dispenser button is pressed or released, respectively after selection of ice (crushed or cube) or water.

6. Water/Crushed Ice/Cube Ice Selection function

1) It is to select water/crushed ice/cube ice by user from the function control part and it will be indicated and selected by pressing button.

2) Crushed ice is automatically selected when power is initially on.

3) When crushed ice is selected and its button is pressed, geared motor operates and crushed ice is dispensed.

4) When cube ice is selected and its button is pressed, geared motor and ice solenoid operate and cube ice is dispensed.

7. Function of Water Dispenser

1) When user selects water in the function control parts, it is indicated in the LED and water is selected.

2) Water dispenser is a direct tap water connection type. The water solenoid valve on the right of machine room opens and water dispenses when user selects water and presses button.

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+ 83 hidden pages

LG LRSPC2031xx Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual