1133.5

3. Ref No. : GR-L247
ITEMS DIMENSIONS (mm) NET WEIGHT (kg) COOLING SYSTEM TEMPERATURE CONTROL DEFROSTING SYSTEM SPECIFICATIONS 890(W)X840(D)X1750(H) 125 Fan Cooling Micom Control Full Automatic Heater Defrost INSULATION COMPRESSOR EVAPORATOR CONDENSER REFRIGERANT LUBRICATING OIL DRIER Cyclo-Pentane P.T.C. Starting Type Fin Tube Type Wire Condenser R134a (185g) FREOL @15G (320 cc) 10.83 FREEZER LAMP REFRIGERATOR LAMP DISPENSER LAMP ANTI-FREEZING HEATER ANTI SWEAT HEATER ITEMS CAPILLARY TUBE FIRST DEFROST DEFROST CYCLE DEFROSTING DEVICE SPECIFICATIONS MOLECULAR SIEVE XH-- 5 Hours 13 - 15 Hours Heater, Sheath Heater, L-Cord Dispenser Duct Door Heater Dispenser Heater Water Tank Heater Damper Heater 40W (1 EA) 40W (1 EA) 15W (1 EA)

4. Ref No. : GR-L207

ITEMS DIMENSIONS (mm) NET WEIGHT (kg) COOLING SYSTEM TEMPERATURE CONTROL DEFROSTING SYSTEM SPECIFICATIONS 890(W)X755(D)X1750(H) 120 Fan Cooling Micom Control Full Automatic Heater Defrost INSULATION COMPRESSOR EVAPORATOR CONDENSER REFRIGERANT LUBRICATING OIL DRIER Cyclo-Pentane P.T.C. Starting Type Fin Tube Type Wire Condenser R134a (185g) FREOL @15G (320 cc) 10.83 FREEZER LAMP REFRIGERATOR LAMP DISPENSER LAMP ANTI-FREEZING HEATER ANTI SWEAT HEATER ITEMS CAPILLARY TUBE FIRST DEFROST DEFROST CYCLE DEFROSTING DEVICE SPECIFICATIONS MOLECULAR SIEVE XH-- 5 Hours 13 - 15 Hours Heater, Sheath Heater, L-Cord Dispenser Duct Door Heater Dispenser Heater Water Tank Heater Damper Heater 40W (1 EA) 40W (1 EA) 15W (1 EA)

1. Ref No. : GR-C247

ITEMS DIMENSIONS (mm) NET WEIGHT (kg) COOLING SYSTEM TEMPERATURE CONTROL DEFROSTING SYSTEM SPECIFICATIONS 890(W)X840(D)X1750(H) 117 Fan Cooling Micom Control Full Automatic Heater Defrost INSULATION COMPRESSOR EVAPORATOR CONDENSER REFRIGERANT LUBRICATING OIL DRIER CAPILLARY TUBE Cyclo-Pentane P.T.C. Starting Type Fin Tube Type Wire Condenser R134a (185g) FREOL @15G (320 cc) 10.83 MOLECULAR SIEVE XH-7 ANTI SWEAT HEATER ANTI-FREEZING HEATER FREEZER LAMP REFRIGERATOR LAMP DISPENSER LAMP ITEMS FIRST DEFROST DEFROST CYCLE DEFROSTING DEVICE SPECIFICATIONS 4 - 5 Hours 13 - 15 Hours Heater, Sheath Heater, L - Cord Home Bar Heater Damper Heater 40W (1 EA) 40W (1 EA) 15W (1 EA)

2. Ref No. : GR-C207

ITEMS DIMENSIONS (mm) NET WEIGHT (kg) COOLING SYSTEM TEMPERATURE CONTROL DEFROSTING SYSTEM SPECIFICATIONS 890(W)X755(D)X1750(H) 112 Fan Cooling Micom Control Full Automatic Heater Defrost INSULATION COMPRESSOR EVAPORATOR CONDENSER REFRIGERANT LUBRICATING OIL DRIER CAPILLARY TUBE Cyclo-Pentane P.T.C. Starting Type Fin Tube Type Wire Condenser R134a (185g) FREOL @15G (320 cc) 10.83 MOLECULAR SIEVE XH-7 ANTI SWEAT HEATER ANTI-FREEZING HEATER FREEZER LAMP REFRIGERATOR LAMP DISPENSER LAMP ITEMS FIRST DEFROST DEFROST CYCLE DEFROSTING DEVICE SPECIFICATIONS 4 - 5 Hours 13 - 15 Hours Heater, Sheath Heater, L - Cord Home Bar Heater Damper Heater 40W (1 EA) 40W (1 EA) 15W (1 EA)

Confirm the amount of water

Ice maker

Test Switch Too much Optimum level Too little
* It is acceptable if the adjusted level of water is a bit smaller than optimum level.

- 23 -

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

Switch ON Switch OFF

3. When adjustment of control switch for the amount of water supplied is complete, check the level of water in the ice tray. Confirm the amount of water
2. Adjust the amount of water supplied by using DIP switch. s Water Supplying Time Control Option SWITCH NO S/W1 OFF ON OFF ON OFF ON OFF ON S/W2 OFF OFF ON ON OFF OFF ON ON S/W3 OFF OFF OFF OFF ON ON ON ON Water Suppling Time 6.5 Sec. 5.5 Sec. 6 Sec. 7 Sec. 7.5 Sec. 8 Sec. 9 Sec. 10 Sec.

Optimum level

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.

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MICOM FUNCTION

1. Monitor Panel

1-1. GR-P247, GR-P207, GR-L247, GR-L207

Function Monitor

1-2. GR-C247, GR-C207, GR-B247, GR-B207, GR-B197

FRZ Temp

REF Temp

SELECT

Freezer compartment temperature control Button
Refrigerator compartment temperature control Button
Dispenser selection button
2. Description of Function
2-1. Funnction of Temperature Selection
Division Power Initially On 1st Press 2nd Press 3th Press 4th Press
Change of Indication Lamp
Temperature Control Freezer Control
Medium -19 C (-18 C) <-19 C> 3 C <2 C>
Medium Max -22 C (-20.5 C) <-20.5 C> 1.5 C <1 C>
Max -23 C (-22 C) <-22 C> 0C <0 C>

*( *<

Medium Min

-15 C <-16.5 C> 6 C (7 C) <4.5 C>
-17 C <-18 C> 4.5 C <3 C>

Refrigeration Control

* 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.

- 25 -

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.

2-10. 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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MICOM CIRCUIT DESCRIPTION
1. Description of PWB Circuit

1-1. Power Circuit

1. GR-P247, GR-P207, GR-L247, GR-L207 Power circuit is composed of switching mode power supply (SMPS) electric parts. SMPS is composed of rectifying part (D1~D4, CE1) which converts AC to DC voltage, switching part (IC2) which switches this converted DC voltage, trans which transmits primary energy to secondary energy, secondary power source which transmits power to MICOM and IC, and feed back part (IC3, ZD1) which feeds back voltage to primary trans in order to maintain constant secondary voltage. The voltages at each part are as follows. Note : If circuit is abnormal, repair it after 3 minutes when power cord is unplugged. Be care of electric shock as high voltage (DC 310 V) is applied to the circuit.

2. GR-C247, GR-C207, GR-B247, GR-B207 In the trans secondary side is composed of power source (12 Vdc) for driving relay and power source (5 Vdc) which supplies power to MICOM and IC. Voltages in each part are as follows.

Position Voltage

1-2. Oscillation Circuit
This is to generate basic time for synchronous clock and time calculation for internal logic element to send and receive information.Standard parts should be used as the time calculated by IC1 shall be changed or shall not work if OSC1 specification is changed.

1-3. Reset Circuit

Reset circuit is to initialize RAM in MICOM (IC1) and make all functions to start from the initial conditions when power is nitially applied or power is reapplied to MICOM after power cut. Low voltage is applied for 10 ms to the reset terminal of MICOM when power is applied. 5 voltage is applied to the reset terminal for general operation. (MICOM does not work when IC9(Reset IC) is failed)

- 31 -

1-4. Load/Dispenser Operation, Buzzer Driving, Door Opening Detecting Circuit
1. LOAD DRIVING CIRCUIT * Freezer fan motor shall stop when freezer or refrigerator door is open. Freezer fan motor shall immediately operate when freezer or refrigerator door is closed. * Door switches A, B, C, D, E, F of freezer and refrigerator are connected to the door opening detecting circuit in Micom. * Home bar door switch E, F is parallelly connected to the refrigerator door switch C, D. Therefore it can detect door opening when one of the door is open. 1) GR-P247, GR-P207, GR-L247, GR-L207 Refrigerator Fan Motor High Speed No.13 Standard Speed No.14

Load Types

Machine Room No.10

Defrost Heater No.11

AC Converting Relay No.12 Below 1 V 12 V
Heater, Plate (W/TANK) No.16
Measuring Locations(IC 6) Condition ON OFF

- 32 -

2) GR-C247, GR-C207, GR-B247, GR-B207, GR-B197 * Freezer fan motor shall operate when freezer, refrigerator, or home bar door is open. * Door switches A, B, C, D of freezer and refrigerator are connected to door opening detecting circuit in Micom. * Home bar door switch E, F is parallelly connected to the refrigerator switch C, D. Therefore it can detect door opening when one of the door is open. Refrigerator Fan Motor High Speed No.13 Standard Speed No.14

Cord heater

- 62 -
CLAIMS. 3. Refrigeration is weak. Residual frost. CAUSES AND CHECK POINTS. Weak heat from heater. Sheath Heater - rated. Heater plate - rated. Heater cord-L - rated. No contact to drain. Loosened stopper cord. HOW TO CHECK
Bad heater assembly. Heater plate
Heater cord-L Not contact to the evaporator pipe. Location of assembly (top and middle). Too short defrosting time. Defrost Sensor. - Faulty characteristics. Seat-D(missing, location. thickness). Structural fault. Gasket gap. Air inflow through the fan motor. Bad insulation of case door. No automatic defrosting. Defrost does not return.
3) Cooling air leak. Bad gasket adhestion
Gap. Bad attachment. Contraction.

Door sag.

Bad adhesion. Weak binding force at hinge. s Check the fan motor conduction: OK. No conduction: NG.
4) No cooling air circulation. Faulty fan motor. Fan motor. Self locked. Wire is cut. Bad terminal contact. Contact distance. Button pressure. Melted contact. Contact. Refrigerator and freezer switch reversed. Button is not pressed. Poor door attachment. Door liner (dimension). Contraction inner liner. Misalignment. Bad terminal connection. P/U liquid leak. Faults.

Door switch.

- 63 -
CLAIMS. 3. Refrigeration is weak. CAUSES AND CHECK POINTS. 4) No cooling air circulation. Faulty fan motor. Fan is constrained. Insufficient motor RPM Fan shroud contact. - Clearance. Damping evaporator contact. Accumulated residual frost. Fan overload. - Fan misuse. Bad low termperature RPM characteristics. Rated power misuse. Low voltage. Fan misuse. Bad shape. Loose connection. - Not tightly connected. Insert depth. Bent. HOW TO CHECK
Small cooling air discharge.

Faulty fan.

Shorud.
Ice and foreign materials on rotating parts.

5) Compressor capacity.

Rating misuse. Small capacity. Low valtage. Malfunction of charging cylinder. Wrong setting of refrigerant. Insufficient compressor. - Faulty compressor.
6) Refrigerant too much or too little.
7) Continuous operation - No contact of temperature controller. - Foreign materials.
s Check visually after disassembly.
8) Damper opens continuously. Foreign materials P/U liquid dump. jammed. EPS water sediment. Screw. Failed sensor. - Position of sensor. Characteristics Bad characteristics of its own temperatue. of damper. Parts misuse. Charge of temperature - Impact. characteristics. 9) Food storing place. - Near the outlet of cooling air.

- 64 -

CLAIMS. 4. Warm refrigerator compartment temperature. CAUSES AND CHECK POINTS. 1) Colgged cooling path. P/U liquid leak. Foreign materials. P/U dump liquid. 2) Food storate. Store hot food. Store too much at once. Door open. Packages block air flow. HOW TO CHECK
5. No automatic operation. (faulty contacts.)
1) Faulty temperature sensor in freezer or refrigerator compartment. Faulty contact. Faulty temperature characteristics. 2) Refrigeration load is too much.
s Inspect parts measurements and check visually.
Too much food. Hot food. Frequent opening and closing. Cool air leak. Poor door close. Partly opens.
3) Poor insulation. 4) Bad radiation.
High ambient temperature. Space is secluded.
5) Refrigerant leak. 6) Inadequate of refrigerant. 7) Weak compressor discharging power. 8) Fan does not work. 9) Button is positioned at "strong."
Different rating. Small capacity.
6. Dew and ice formation.
1) Ice in freeezer compartment. External air inflow. Rubber motor assembly direction(reverse). Door opens Weak door closing power. but not closes. Stopper malfunction. Door sag. Food hinders door closing.
Gap around gasket. Contraction, distortion, loose, door twisted, corner not fully inserted. Food vapor. Storing hot food. Unsealed food. 2) Condensation in the refrigerator compartment. Insufficient closing. Door opens but not closes. Door sag. Food hinders door closing. Gasket gap. 3) Condensation on liner foam. Cool air leak Not fully filled. and transmitted. Toop table part. Out plate R/L part. Flange gap. Not sealed. Gasket gap.

- 65 -

CLAIMS. 6. Dew and ice formation. CAUSES AND CHECK POINTS. 4) Dew on door. Dew on the duct door. - Duct door heater is cut. Dew on the dispense Recess Heater is cut. recess. Duct door is open. / Foreign material clogging. Dew on the door surface. Surface. Cormer. P/U liquid contraction. Not fully filled. Liquid shortage. Liquid leak. HOW TO CHECK
Dew on the gasket surface.

Bad wing adhesion.

Wing sag(lower part). Door liner shape mismatch. Corner. Too much notch. Broken. Home Bar heater is cut.
5) Water on the floor. Dew in the refrigerator compartment. Defrosted water overflows. Clogged discharging hose. Discharging hose Evaporation tray located at wrong place. location. Tray drip. Damaged. Breaks, holes. Small Capacity. Position of drain.

7. Sounds

1) Compressor compartment operating sounds. Compressor sound Sound from machine itself. inserted. Sound from vibration. Restrainer. Rubber Too hard. seat. Distorted. Aged. Burnt. Stopper. Bad Stopper Not fit assembly. (inner diameter of stopper). Tilted. Not Compressor base not connected. Bad welding compressor stand(fallen). Foreign materials in the compressor compartment. O.L.P. sound. Capacitor noise. Pipe sound. Chattering sound. Insulation paper vibration. Pipe contacts each other. Narrow interval. No vibration damper. Damping rubber-Q. Damping rubber-S. Capillary tube unattached.

Vibration sound. 1. Vibration of shelves and foods in

("Cluck")

the refrigerator.
2. Pipes interference and capillary
tube touching in the compressor.
3. Compressor stopper vibration.
4. Moving wheel vibration.
5. Other structure and parts

vibration.

- 79 1-1 Check time and place of sound sources.
Irregular sound. 1. It is caused by heat expansion
1) Explain the principles of refrigeration and that the temperature difference between operation and defrosting can make sounds. 2) If evaporator pipe contacts with other structures, leave a clearance between them (freezer shroud or inner case).

("Click").

and contraction of evaporator,
shelves, and pipes in the

refrigerator.

Problems - Check the restrainer attached on the evaporator and capillary tube weld joints and attach another restrainer. - If it is continuous and servere, insert capillary tube again (depth:153mm) - Fasten the capillary tube to suction pipes or detach in the compressor compartment. - Explain the principles of freezing cycles.
Sound "Burping" It happens when refrigerant expands - Check the sound of refrigerant at the initial installation. - Check the sound when the refrigerator starts operation after forced defrosting. - Check the restrainer attachment conditions on the evaporator and capillary tube weld joints.
(almost the same at the end of capillary tube.

as animals crying

sound).
Water boiling or turned on. - Check the sound when compressor is turned off.
It happens when refrigerant passes
- Check the sound when compressor is
- Explain the principles of freezing cycles and refrigerant flowing phenomenon by internal pressure difference. - If sound is servere, wrap the accumulator with foam and restrainer.

flowing sound.

orifice in accumulator internal pipes by
- 80 - Check the sound by opening and closing the refrigerator or freezer doors. compartment.
the pressure difference between
condenser and evaporator.

Bad cooling motor and reed switch and lead wire are cut. Check AC damper part.
Defective AC Damper. Check AC damper

Refrigerator

temperature.

- 84 -

Defective refrigerator

sensor

refrigerator sensor with a tester. sensor.
Problems Check if defrost lead wire is cut with a tester. Check the voltage of CON5 (1 and 7) with a tester after pressing main PCB test switch twice. If the voltage is normal then it is OK. Check the resistance of defrost sensor with a tester. sensor. Replace defrost and RY 14) or PCB. Replace relay (RY 7 Refer to load driving conditions check in circuit explanation. Refer to sensor resistance characteristic table of circuit explanation. Check lead wire related to door switch with a tester. Refer to door switch in parts repair guide. Replace door switch. Repair lead wire. Wire. Reconnect Lead

Bad defrost.

Defrost is not
Defrost lead wire is cut.

working.

Defective defrost driving relay.
Defective defrost sensor parts.

Defective

Buzzer
Defective connecting lead wire from

buzzer

continuously

main PCB to door switch.

- 85 Check input wire with a tester. visually.

rings or door

Defective door switch parts.

opening alarm

does not work. Reconnect lead wire and replace or directly connect bad contact terminal to lead wire. Refer to display circuit in circuit explanation.

Buzzer does

Key input wire is cut or bad connector

display button

not ring and
terminal contact in main PCB and

key does not

display PCB connecting lead wire.

sense even

button is
pressed. Disassemble frame display and confirm Adjust or replace interfering structures.
Key is continuously depressed due to

structural interference.

Problems Check trouble diagnosis function. indication in function explanations. Repair troubles Refer to mode

Buzzer rings

Trouble mode indication.

display button.

but key does

not sense even

pressed. Check lead wire associated with door switch. Refer to door switch in parts repair guide. switch. Check Lead Wire associated with lever switch with a tester. Refer to door switch in parts repair guide. Replace lever switch. Check voltage change at photo coupler output terminals with lever switch pressed. It is OK if voltage change is between 0V - 5V. Check relay (RY9, RY11, RY12) with a tester. Check resistance of parts with a tester. Replace defective relay. Replace defective parts. Check relay (RY10) with a tester Check resistance of parts with a tester. Replace defective relay. Replace defective parts. Replace photo coupler IC or PCB. Repair lead wire. Replace Freezer compartment door Repair lead wire. Check model with dispenser.

Drier High pressure side

Refrigent Intake
When replacing a drier: Weld and parts by blowing nitrogen(0.1~0.2kg/cm2) to high pressure side after assembling a drier. When replacing a compressor: Weld and parts by blowing nitrogen to the low pressure side. Note) For other parts, nitrogen blowing is not necessary because it does not produce oxidized scales inside pipe because of its short welding time. 3. Replacement of drier. * Unit : mm KEYPOINTING Be sure to check the inserted length of capillary tube when it is inserted. (If too much inserted, a capillary tube is clogged by a filter.)
12 Filter Inserting a capillary tube
Measure distance with a ruler and put a mark(12+3/-0)on the capillary tube. Insert tube to the mark, and weld it

- 90 -

Items 4.Vacuum degassing.
Suction pipe Compressor Drier

Precautions

Evaporator
Low pressure Blue Yellow Red

High pressure

Vaccum Pump
Pipe Connection Connect a red hose to the high pressure side and a blue hose to the low pressure side. Vacuum Sequence Open , valves and evacuate for 40 minutes. Close valve. 5.Refrigerant charging. Charging sequence
KEYPOINTING - If power is applied during vacuum degassing, vacuum degassing shall be more effective. - Operate compressor while charging refrigerant. (It is easier and more certain to do like this.)
1) Check the amount of refrigerant supplied to each model after completing vacuum degassing. 2) Evacuate bombe with a vacuum pump. 3) Measure the amount of refrigerant charged. - Measure the weight of an evacuated bombe with an electronic scale. - Charge refrigerant into a bombe and measure the weight. Calculate the weight of refrigerant charged into the bombe by subtracting the weight of an evacuated bombe. Indicate the weight of an evacuated bombe R134a KEYPOINTING - Be sure to charge the refrigerant at around 25C. - Be sure to keep -5g in the winer and +5g in summer Calculation of amount of refrigerant charged the amount of refrigerant charged= a weight after charging a weight before charging (a weight of an evacuated cylinder)

- 91 -

Items Precautions Evaporator
Compressor Drier Condenser Bombe 4) Refrigerant Charging Charge refrigerant while operating a compressor as shown above. 5) Pinch a charging pipe with a pinch-off plier after completion of charging. 6) Braze the end of a pinched charging pipe with copper brazer and take a gas leakage test on the welded parts. 6. Gas-leakage test 7. Pipe arrangement in each cycle * Take a leakage test on the welded or suspicious area with an electronic leakage tester. Check each pipe is placed in its original place before closing a cover back-M/C after completion of work. Particularly control the size of Joint Drain Pipe Rubber
3-5. Standard Regulations For Heavy Repair
1) Observe the safety precautions for gas handling. 2) Use JIG (or wet towel) in order to prevent electric wires from burning during welding. (In order to prevent insulation break and accident.) 3) The inner case shall be melted and insulation material (polyurethane) shall be burnt if not cared during welding inner case parts. 4) The copper pipe shall be oxidized by overheating if not cared during welding. 5) Not allow the aluminum pipes to contact to copper pipes. (In order to prevent corrosion.) -0 6) Observe that the inserted length of a capillary tube into a drier should be 12 +3 mm. Drier Molecular Sieves Molecular Pipe

- 96 -

4-3. Odor and Frost
Odor in the refrigerator compartment.
s Explain the basic principles of food odor. Each food has its own peculiar odor. Therefore it is impossible to prevent or avoid food odor completely when food is stored in the completely sealed refrigerator compartment. Deodorizer can absorb some portions of the odor but not completely. The intensity of odor depends on refrigerator conditions and environments.
s Check the temperature control button and set at strong. Clean inside of the refrigerator with detergent and remove moisture. Dry inside the refrigerator by opening the door for about 3 or 4 hours and then set the temperature control button at strong.
Frost in the freezer compartment
s Explain the basic principles of frost formation. The main causes for frosting: - Door was left open. - Air penetration through the gasket - Too frequent door opening. (parties. etc.) - Hot foods are stored before they are cooled down. The temperature of freezer is -19C. if temperature is set at MID. If hot air comes into the refrigerator, fine frost forms as cold air mixes with hot air. If this happens quite often, much frost forms inside of the refrigerator. If the door is left open in Summer, ice may form inside of the refrigerator.

Frost in ice tray.

s Explain basic principles of frost formation. When ice tray with full of water is put into a freezer compartment, the water evaporates. If cool air fan operates, the moisture attached to the jaw (protruded part) of ice mold shall freeze and form frost. If warm water was put into the ice mold, the situation will become worse.

- 97 -

4-5. Others
The refrigerator case is hot.
s Explain the principles of radiator. The radiator pipes are installed in the refrigerator case and partition plate between the refrigerator and the freezer compartment in order to prevent condensation formation. Particularly in summer or after installation of refrigerator, it may feel hot but it is normal. If there is no enough space to dissipate heat, it can be hotter due to lack of heat radiation. Please install a refrigerator in a well-ventilated place and leave a clearance between refrigerator and wall: s Explain that the hole is for releasing gas. A small hole in the door liner is for releasing gas during insulation materials lining work. With a releasing hole, forming can be easily done. s Check the use conditions. Too frequent door opening and hot food storing cause the compressor to operate continuously and hence increase the electric consumption and bills. s Explain how to store foods Condensation forms when refrigerator is installed at damp area, door is frequently opened, and wet foods are not stored in the air tight container or wrapped. Be sure to store wet foods in the air tight container or in the wrap. s When should the power be connected ? You can connect the power right after the installation. But if the refrigerator was laid flat during transportation for a long period of time and the refrigerant and compressor oils are mixed up, then this will affect badly the performance of a refrigerator. Be sure to connect the power 2~3 hours after refrigerator is installed. s Refrigerator compartment door does not open properly. When the door is open, warm open air comes into the compartment and is mixed up with cool air. This mixed air shall be compressed and increase the internal pressure when door is closed. This causes the door sticked closely to the refrigerator in a moment. (If the refrigerator is used for a long time, it will then open smoothly.) s When the refrigerator compartment door is open and close, the freezer compartment door moves up and down. When the refrigerator compartment door is open and close, fresh air comes into the freezer compartment and moves up and down the freezer compartment door. s Door opens too easily. There is a magnet in the gasket rubber so that it is ok. if door is securely closed without a gap. It can be open easily if the foods in the refrigerator or freezer compartments hold the door open. s A door does not close properly. If the rear side of the refrigerator is raised higher than front side, door shall not be easily closed. Adjust the level of refrigerator with levelling screws.

4. ICEMAKER ASSY

Handle, Deco

1. Dispenser Model

1) How to disassemble: (1) Remove ice bank from the freezer compartment. (2) Loosen two screws on the upper part of icemaker bracket. (3) Disconnect icemaker bracket so that it can slide forward. (4) Disconnect icemaker housing and sensor housing. (5) Disconnect icemaker horizontally by pressing bracket hook part. ( Dont disassemble further. The set value may be changed.) 2) How to assemble : The assembly is the reverse order of the above disassembly. Bracket, Ice Maker Hook
2) Put blade screwdriver into a groove on the side of a DECO handle and lift up in arrow direction and push down with hand in arrow direction and disconnect. 3) Push up a piece handle in arrow direction with hand and disconnect. 4) Turn screw in arrow direction with a cross driver and disconnect. Screw
Ice Maker Unit Handle, Piece
Lever Tray, Ice Insulation

3. SHROUD, GRILLE FAN

1) Loosen two screws after disconnecting a cap screw of a grille fan(U) with a balde screwdriver. 2) Disassembly of a grille fan(U) : Pull forward after opening hook at part with a blade screwdriver. 3) Disconnect housing A of a grille fan (L) from the main body.

Sensor Cover, Sensor

Note : When the ice tray is not horizontal after assembly, assembly must be wrong. Check and assemble again.

- 100 -

5. DISPENSER
1) Disconnect button assembly by pulling down until it stops and then pulling forward. 4) Loosen four screws with a phillips screwdriver and pull a funnel Assy to disconnect.

Funnel Assy

Button
5) Duct cap Assy is disconnected if hold lever connecting screw is loosened with a phillips screwdriver. 2) Remove display frame Assy by making a gap between a display frame Assy. and funnel Assy. with a balde screwdriver and pulling it forward. The cover dispenser is fixed with a hook.
Solenoid Assy Holder Lever

Cap Assy,Duct

3) Display Assy can be disconnected by pressing the upper part of a cover dispenser and pushing a display Assy. after disconnecting display frame Assy. housing.
6) For assembling a duct cap Assy., insert one end of a spring into the right hole of dispenser lever, and insert the other end into the right hole in upper part of dispenser. And then assemble a holder lever after fixing a holder at a solenoid Assy working part. Heater, Sheet Spring
Lever,Dispenser Solenoid Assy

- 101 -

7) Dispenser Related Parts
FRAME ASSY, DISPLAY COVER, DISPENSER PWB(PCB) ASSY, DISPLAY FUNNEL ASSY SWITCH, MICRO FRAME, FUNNEL
10 LEVER(SWITCH) 11 FUNNEL 12 RUBBER, FUNNEL
13 SWITCH, ROCKER 14 SOLENOID ASSY 15 SPRING 16 HOLDER, LEVER 17 CAP, DUCT
19 LEVER, DISPENSER 20 RUBBER, CAP
21 BUTTON ASSY 22 BUTTON 23 HOLDER, BUTTON 24 DECO, DRAIN

231A 233A

- 106 -

Ref No. : GR-L247, GR-L207, GR-B247, GR-B207, GR-B197

206D 241B 236A

232A 234A

240C 205B 205C

- 107 -

FREEZER COMPARTMENT

271B 271A 137A
136C 403A 136C 136B 136A 135A
400A 401A 302A 130A 128C 408B

320C 320A 120B 320A

272A 103A 320B 408A 120B

120A 105B 135B

- 108 -

REFRIGERATOR COMPARTMENT

140A 101B 146A 270B 271B 271A 626C

116A 410A

141D 115A 171B 141C 115B 170C 171A

402A 170B 151C

151E 401A

170A 140D

162B 272B 145A 166B
166A 165C 103A 165A 160D 160B or 165B

160A 160C 160D 160B

- 109 -

ICE & WATER PART

622A 618A 616E 616F

623A or 623B

620A 620B

612A 612C 600A

605A 616A 616C 611A
616A 603B 510B 603A 601A 615A 617A 613A 404B 616B

- 110 -

MACHINE COMPARTMENT

407A 407B 505A

500A 502B 303B 303C 304A

303D 313A

300A 307A 307A

306C 301A

317A 317B

306D 104A

308B 309A 309B 403B 309B 310A 306C

305A 305B 305C

105E 305B

105D 105C

- 111 -

DISPENSER PART

278C 402C 275A 278F 278E 405A 275D 278D 276B 276A

401C 275C 275B

501A 281A

280C 280B

280A 279A 207A

- 112 -

P/No. 3828JD8545H
OCT., 2003 Printed in Korea