Kleenmaid TBR351ANBRWH Refridgerator Owner's Manual

CAUTION

BEFORE SERVICING THE UNIT, READ THE "SAFETY

PRECAUTIONS" IN THIS MANUAL.

MODEL: GR-392

CONTENTS

SAFETY PRECAUTIONS ....................................................................................................................................................... 2

SERVICING PRECAUTIONS.................................................................................................................................................. 3

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

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

DISASSEMBLY.................................................................................................................................................................... 6-7

DOOR................................................................................................................................................................................... 6

DOOR SWITCH.................................................................................................................................................................... 6

THERMOSTAT ..................................................................................................................................................................... 6

FAN AND FAN MOTOR........................................................................................................................................................ 6

DEF' CONTROL ASM .......................................................................................................................................................... 7

LAMP.................................................................................................................................................................................... 7

DAMPER CONTROL............................................................................................................................................................ 7

ADJUSTMENT..................................................................................................................................................................... 8-9

COMPRESSOR.................................................................................................................................................................... 8

PTC-STARTER..................................................................................................................................................................... 8

OLP (OVER LOAD PROTECTOR) ...................................................................................................................................... 9

CIRCUIT DIAGRAM................................................................................................................................................................ 9

TROUBLESHOOTING..................................................................................................................................................... 10-15

COMPRESSOR AND ELECTRIC COMPONENTS ........................................................................................................... 10

PTC AND OLP .................................................................................................................................................................... 11

DEFROST TIMER .............................................................................................................................................................. 11

ANOTHER ELECTRIC COMPONENT............................................................................................................................... 12

SERVICE DIAGNOSIS CHART.......................................................................................................................................... 13

REFRIGERATING CYCLE ............................................................................................................................................ 14-15

EXPLODED VIEW ........................................................................................................................................................... 16-17

REPLACEMENT PARTS LIST ........................................................................................................................................ 1835

SAFETY PRECAUTIONS

Please read the followings before servicing your refrigerator.

1. Check if an electric leakage occurs in the set.

2. To prevent electric shock, unplug prior to servicing.

3. In case of testing with power on, wear rubber gloves to prevent electric shock.

4. If you use any appliances, check regular current, voltage and capacity.

5. Don't touch metal products in cold freezer with wet hand.

It may cause frostbite.

6. Prevent water flowing to electric elements in mechanical parts.

7. When you stand up during observing the lower part with the upper door open, move with care to prevent head wound which may happen by hitting the upper door.

8. When sloping the set, remove any materials on the set, especially thin plate type (ex.: glass shelf or books.)

9. When servicing evaporator part, wear cotton gloves without fail. It is to prevent wound by sharp fin of evaporator.

10. Leave a breakage of refrigerating cycle to a heavy service center. The gas in cycle inside may soil ambient air.

- 2 -

SERVICING PRECAUTIONS

AIR RECHARGING IN COMPRESSOR

Test the refrigeration system connecting it electrically before refilling operation. It is necessary to ascertain the function of the motor-compressor and identify the defects immediately. If the defects have been found, empty the old system of eventual R-12(R134a) residue by breaking off the end of the extension piece at its narrow point. (Figure 1)

Replace the filter and any damaged components. Unsolder and pull off the piece remaining inside the service tube and then attach an extension completely with male Hansen and last, solder it to the same tube again. (Figure 2)

POINT TO BE BROKEN

CHARGE TUBE

EXTENSION

FEMALE

HANSEN vacuum operation is over, add the quantity in grams of

R-12(R134a) to the refrigerant system. Remember that every system has an exact quantity of R-12(R134a) with a tolerance of ±5 grams that can be added. (Figure 4)

TO THE R-12(R134a) CYLINDER

MALE HANSEN

SERVICE TUBE EXTENSION

Figure 1

SOLDERING POINT

Figure 2

It is necessary to execute the soldering operation with valve open so that the fumes caused by oil residue can come out freely without blowholes between two tubes during heating the point to be soldered.

The extension fitted with the male Hansen is connected to the female fitting of the vacuum pump tube. (Figure 3)

TO THE REFRIGERATION

SYSTEM

Figure 4

Before performing this operation (if the vacuum pump and refilling cylinder are connected), make sure that the valve placed between the vacuum pump and refilling tube are closed to keep the Freon for adding to the system. (Figure 5)

FILLING OR

CHARGE TUBE

VALVE TO BE OPENED

WHEN REFILLING

TO THE REFRIGERATION

SYSTEM

TO THE CHARGE

CYLINDER

VALVE TO BE CLOSED

AFTER VACUUM

TO THE

VACUUM

PUMP

TO THE

VACUUM

PUMP

Figure 5

PRESSURE

GAUGE

Figure 3

Air evacuating from the system begins so soon as the pump starts. The refrigeration system must be kept under vacuum until the reading on the low-pressure gauge indicates vacuum (0 absolute, -1 atm., -760 mm hg) in any case it is advisable to keep the pump running for about 30 minutes. (Figure 3)

In case that a considerable leakage occurs and to stop the vacuum pump will be necessary and add a small quantity of Freon to the system, if vacuum should not be obtained

(pressure gauge can't fall to 1 atmosphere), start the refrigeration unit and find the leakage with the special leakfinder. When the defective soldering point is visible, re-do it after opening the extension tube valve and reestablishing the normal outside pressure inside the group.

Because the melted alloy is sucked into the tubes and block them, the pressure must be rebalanced when vacuum is in the system in soldering. As soon as the

- 3 -

In addition, check the graduated scale on the cylinder for the quantity of R-12(R134a) to be added, for example, if we have 750 grams of Freon in the cylinder and must add 165 grams to the group, this amount will be reached when

R-12(R134a) has dropped to 585 grams, remembering that the indicator shows a lower limit of meniscus. Do this after choosing the scale corresponding to the gas pressure different scales reported as the same gas pressure indicated by the pressure gauge on the top of the column.

To make R-12(R134a) flow into the system, open the valve placed at the base of the cylinder and connected to the filling tube. The amount of Freon cannot be added to the system all at once because it may cause a blocking of motorcompressor. Therefore, proceed by adding original quantity of about 20-30 grams and close the valve immediately.

The pressure rises and the motor-compressor must start, sucking the gas and making the pressure go down again.

Regulate the valve again, maintaining the same manner until reaching to the quantity of R-12(R134a) established for the system being charged. When the system is running, the suction pressure must be stabilized between 0.30 to

0.6(0.10 to 0.4) atmosphere.

1. SPECIFICATIONS

1-1. GR-392C/CV/S/SV

NET

CAPACITY

(§⁄)

ITEMS SPECIFICATIONS

FREEZER 86 L

REFRIGERATOR 241 L

TOTAL 327 L

DIMENSIONS (mm) 725(W)

X

632(D)

X

1684(H)

NET WEIGHT (kg)

COOLING SYSTEM

TEMPERATURE CONTROL

68

Fan Cooling

Knob Dial

Full Automatic

DEFROSTING SYSTEM

OUT CASE

INNER CASE

Heater Defrost

With a Timer

Coated Steel Sheet

ABS Resin

INSULATION Polyurethane Foam

ITEMS

FREEZER

SPECIFICATIONS

1 EA

SHELF

REFRIGERATOR 2 EA

VEGETABLE TRAY Transparent Drawer Type

EGG TRAY 2 EA

ICE TRAY

ICE BANK

COMPRESSOR

EVAPORATOR

CONDENSER

REFRIGERANT

LUBRICATING OIL

2 EA

1 EA

PTC Starting Type

Fin Tube Type

Pipe on Sheet Type

R-12 (195g)

HTS-95 (330cc)

DEFROSTING DEVICE

FREE CORNER

QUICK FREEZER

Heater

Have

Have

1-2. GR-392SF/SVF

NET

CAPACITY

(§⁄)

ITEMS SPECIFICATIONS

FREEZER 86 L

REFRIGERATOR 241 L

TOTAL 327 L

DIMENSIONS (mm) 725(W)

X

632(D)

X

1684(H)

NET WEIGHT (kg)

COOLING SYSTEM

TEMPERATURE CONTROL

68

Fan Cooling

Knob Dial

Full Automatic

DEFROSTING SYSTEM

OUT CASE

INNER CASE

Heater Defrost

With a Timer

Coated Steel Sheet

ABS Resin

INSULATION Polyurethane Foam

SHELF

ITEMS

FREEZER

SPECIFICATIONS

1 EA

REFRIGERATOR 2 EA

VEGETABLE TRAY

EGG TRAY

ICE TRAY

Transparent Drawer Type

2 EA

2 EA

ICE BANK

COMPRESSOR

EVAPORATOR

CONDENSER

REFRIGERANT

LUBRICATING OIL

DEFROSTING DEVICE

1 EA

PTC Starting Type

Fin Tube Type

Pipe on Sheet Type

R-134a (140g)

FREOL

Heater

¥Æ

FREE CORNER

QUICK FREEZER

Have

Have

- 4 -

2. PARTS IDENTIFICATION

FREEZER TEMP.

CONTROL KNOB

ICE TRAY

ICE BANK

REFRIGERATOR

TEMP. CONTROL

KNOB

MULTI DUCT-R

SHELVES

COVER VEGETABLE

TRAY

VEGETABLE TRAY

COVER LOWER

ADJUSTABLE FEET

NOTE : This is a basic model. The shape of refrigerator is subject to change.

QUICK FREEZING

CORNER

BASKET OF

FREEZER

EGG TRAY

BOTTLE RACK

- 5 -

3. DISASSEMBLY

3-1 DOOR

● Freezer Door

1. Remove the hinge cover by pulling it upwards

2. Loosen 3 hexagonal bolts fixing the upper hinge to the body and lift the freezer door.

HINGE COVER

BOLT

HINGE

3-2 DOOR SWITCH

1. To remove the door switch, pull out it with a 'Ñ' type driver as shown in (Figure 9).

2. Disconnect the lead wire from the switch.

DOOR SWITCH

Figure 6

3. Loosen the screws inside the door gasket to remove the door gasket and the door liner.

GASKET

DOOR LINER

LEAD WIRE

Figure 9

3-3 THERMOSTAT

1. Loosen 2 screws fixing the control box assembly to the body.

2. Remove the thermostat knob and the thermostat from the control box.

THERMOSTAT

Figure 7

● Refrigerator Door

1. Loosen 4 hexagonal bolts fixing the lower hinge to the body to remove the refrigerator door only.

CONTROL BOX

THERMOSTAT

KNOB

SCREW

Figure 10

3-4 FAN AND FAN MOTOR

1. After taking out the control box, remove the grill fan by leaning the hook upwards with a 'Ñ' type driver and pulling it out.

HOOK

BOLT

LOWER HINGE

Figure 8

2. Loosen the screws inside the door gasket to remove the door liner and the door gasket.

Figure 11

GRILL FAN

- 6 -

2. Pull out the shroud assembly.

3. Loosen 2 screws holding fan motor bracket to remove the fan and fan motor assembly.

FAN MOTOR

FAN

3-6 LAMP

3-6-1 Freezer

1. Remove all shelves in the freezer.

2. To remove the lamp cover, insert a 'Ñ' type driver in the lower gap and pull out it as shown in (Figure 15).

3. Turn the lamp counterclockwise.

3-6-2 Refrigerator

1. Remove all shelves in the refrigerator.

2. Insert your hand in the lower aperture of the Lamp

Cover and remove it by pulling forward as shown in

(Figure 16).

3. Turn the lamp counterclockwise.

SHROUD FAN MOTOR

BRACKET

Figure 12

3-5 DEF' CONTROL ASM

Def control ASM consists of Defrost Thermostat and FUSEÐM.

Defrost Thermostat functions to defrost automatically and it is attached to the Evaporator and the metal side of the case senses Temp.

Fuse-M is a kind of safety device for preventing overheating of the Heater when defrosting.

At the temperature of 77¡C, it stops the emission of TEMP from the Defrost Heater.

1. After removing the Control Box, and Fan Grill loosen 2 screw and pull out the Shroud with it pulling with your hand. (Figure 13)

2. Separate the 2 connectors connected with the Def

Control ASM and replace the Def Control ASM after cutting the Tie Wrap and removing the Holder Fuse.

(Figure 14)

SHROUD-F FAN

DEF-THERMO

Figure 15 Figure 16

3-7 DAMPER CONTROL

1. Remove the control knob by pulling it out.

2. After removing the Lamp cover, loosen 2 screws fixing the Damper control ASM to the body.

3. Remove the Damper control ASM and separate the

Damper and the Control box.

HOLDERS

Figure 13

FUSE-M

HOLDER FUSE

Figure 14

DAMPER

CONTROL BOX

KNOB

LAMP COVER

Figure 17

- 7 -

4. ADJUSTMENT

4-1 COMPRESSOR

4-1-1 Role

The compressor inhales low temp. and low pressure gas evaporated from Evaporator of the Refrigerator, and condenses this gas to high temp. and high pressure gas, and then plays delivering role to Condenser.

4-1-2 Composition

The Compressor is Composed of Compressor Apparatus compressing gas, Compressor Motor moving Compressor

Apparatus and Case protecting Compressor Apparatus and Motor.

There are PTC-Starter, and Over Load Protector in the

Compressor outside. On the other hand, because the

Compressor consists of 1/1000mm processing precision components and is sealed after producing without dust or humidity, deal and repair with care.

4-1-3 Note to Use

1. Be careful not to allow over voltage and over current.

2. No Strike

If applying forcible power or strike (dropping or careless dealing), poor operation and noise may occur.

3. Use proper electric components appropriate to the

Compressor.

4. Note to Keep Compressor.

If Compressor gets wet in the rain and rust in the pin of

Hermetic Terminal, poor operation and poor contact may cause.

5. Be careful that dust, humidity, and flux due to welding don't inflow in Compressor inside in replacing

Compressor. Dust, humidity, and flux due to welding which inflows to Cylinder may cause lock and noise.

4-2 PTC-STARTER

4-2-1 Composition of PTC-Starter

1. PTC (Positive Temperature Coefficient) is no-contact semiconductor starting device which uses ceramic material and the material consists of BaTiO 3 .

2. The higher the temperature is, the higher resistance value becomes . These features are used as starting device of Motor.

4-2-2 Role of PTC-Starter

1. PTC is attached to Hermetic Compressor used for

Refrigerator, show case and starts Motor.

2. Compressor for household refrigerator applies single phase induction Motor.

For normal operation of single-phase induction motor, in the starting operation flows in both main coil and sub coil. After the starting is over, the current is cut off in sub coil. The proper features of PTC play the above all roles.

So, PTC is used as a starting device of motor.

4-2-3 PTC-Applied Circuit Diagram

According to Starting Method of Motor

OVERLOAD PROTECTOR -

3 -

PTC -

5 -

6 -

S -

PTC STARTER -

RSIR -

C -

COMPRESSOR -

MOTOR -

M -

S -

M -

HERMETIC -

TERMINAL -

Figure 18

4-2-4 Motor Restarting and PTC Cooling

1. For restarting after power off during normal Compressor

Motor operation, plug the power cord after 5 min. for pressure balance of Refrigerating Cycle and PTC cooling.

2. During normal operation of Compressor Motor, PTC elements generate heat continuously. Therefore, if PTC isn't cooled for a while after power off, Motor can't operate again.

4-2-5 Relation of PTC-Starter and OLP

1. If power off during operation of Compressor and power on before PTC is cooled, (instant shut-off within 2 min.

or reconnect a power plug due to misconnecting),

PTC isn't cooled and a resistance value grows. As a result, current can't flow to the sub-coil and Motor can't operate and OLP operates by flowing over current in only main-coil.

2. While the OLP repeats on and off operation about 3-5 times, PTC is cooled and Compressor Motor performs normal operation.

If OLP doesn't operate when PTC is not cooled,

Compressor Motor is worn away and causes circuitshort and fire. Therefore, use a proper fixed OLP without fail.

4-2-6 Note to Use PTC-Starter

1. Be careful to over voltage and over current.

2. No Strike

Don't apply a forcible power or strike.

3. Keep apart from any liquid.

If liquid such as oil or water inflows into PTC,

PTC materials may break due to insulation breakdown of material itself.

4. Don't change PTC at your convenience.

Don't disassemble PTC and mold. If damaging to outside of PTC-Starter, resistance value alters and poor starting of compressor motor may cause.

5. Use a properly fixed PTC.

- 8 -

4-3. OLP (OVER LOAD PROTECTOR)

4-3-1 Definition of OLP

4. OLP (OVER LOAD PROTECTOR) is attached to

Hermetic Compressor and protects Motor by cutting off current in Compressor Motor by Bimetal in the OLP in case of over-rising temperature.

2. When over voltage flows to Compressor motor, Bimetal works by heating the heater inside OLP, and OLP protects Motor by cutting off current which flows to Compressor Motor.

4-3-2 Role of OLP

1. OLP is attached to Hermetic Compressor used to

Refrigerator and Show Case and prevents Motor Coil from being started in the Compressor.

2. Do not turn the Adjust Screw of OLP in any way for normal operation of OLP.

(Composition and connection Diagram of OLP)

5. CIRCUIT DIAGRAM

CONTACTION -

POINT -

COVER -

BIMETAL -

CONTACTING -

POINT -

HEATER -

TERMINALS -

ADJUST -

SCREW BIMETAL -

HEATER -

Figure 19

NOTE : 1. This is a basic diagram and specifications vary in different localities.

- 9 -

6. TROUBLESHOOTING

6-1 COMPRESSOR AND ELECTRIC COMPONENTS

-

1 -

Power Source.

Remove the PTC-

Starter from the

Compressor and measure the voltage between Terminal C of

Compressor and

Terminals 5 or 6 of PTC.

(Rating Voltage

±10%)?

2 -

Check the resistance of

Motor

Compressor.

3 -

Check the resistance of

PTC-Starter.

4 Check OLP.

5 -

Check starting state.

YES -

No Voltage.

OLP disconnected?

YES -

Replace OLP.

Check connection condition.

Reconnect.

Advise the customer to use a regular

TRANS.

Applied voltage isn't in the range of Rating

Voltage ±10%.

Check the resistance among M-C, S-C and

M-S in Motor

Compressor.

YES -

NO Replace Compressor.

Check the resistance of two terminals in

PTC-Starter.

YES -

NO -

3 4

Replace

PTC-Starter.

Check if applying a regular OLP.

Measure minimum starting voltage after 5 min. for balancing cycle pressure and cooling the

PTC.

YES -

OLP works within

30 sec. in forcible OLP operation by turning instant power on and off.

NO -

YES -

Replace OLP.

NO -

Components start in the voltage of Rating

Voltage ±10% below.

YES -

O.K.

NO -

-

2 -

5 -

5 -

-

1 -

3 -

5 -

4 -

5 -

5 -

- 10 -

6-2 PTC AND OLP

Normal operation of

Compressor is impossible or poor.

Separate the PTC-

Starter from

Compressor and measure the resistance between

No. 5 and 6 of PTC-

Starter with a Tester or

Whistone Bridge.

(Figure 21)

Observation value is

220V/50Hz : 22 § ±30%

115V/60Hz : 6.8

§ ±30%

240V/50Hz : 33 § ±30%

127, 220V/60Hz : 22 §

±30%

The resistance value is 0 or several hundreds § .

The value is ¡˜ .

Separate the OLP from

Compressor and check the resistance value between two terminals of OLP with a Tester.

(Figure 22)

YES -

NO -

Check another electric components.

Replace OLP.

6 5 -

Check another electric components.

Replace PTC-

Starter

6-3 DEFROST TIMER

Normal operation of the Defrost Timer is impossible.

No defrosting.

Poor cooling.

Figure 21 Figure 22

Position the Cam Shaft to the point of first 'click' sound and check the current flowing between terminals No. 1(brown) and No. 2(bright orange).

Next, position the Cam

Shaft to the point of second "click" sound and check the current flowing between terminals

No. 1(brown) and

No. 4(black)

(Figure 23).

NO -

YES -

The resistance is

The resistance is

0 § or variable.

¡˜

The resistance is about

220V/50Hz : 20K §

115V/60Hz : 7.8K

§ .

NO -

Turn the Cam Shaft.

Shake about 3 times with holding the Cam

Shaft and Body softly.

Loud 'click' sound.

Replace the

Defrost Timer.

Replace the

Defrost Timer.

Check the another electric components.

Replace the

Defrost Timer.

Replace the

Defrost Timer.

Cam Shaft -

Figure 23

- 11 -

6-4 ANOTHER ELECTRIC COMPONENTS

▼ Cooling is impossible

Compressor doesn't run.

Check if current flows to the following components.

a. Thermostat b. Starting devices c. OLP d. Compressor coil e. Defrost Timer f. Circuit parts

Running state of

Compressor is poor.

Check a starting voltage.

Check if current flows to starting devices.

Check current flowing in sub-coil of

Compressor.

Check capacity of OLP.

The items described above are normal.

▼ Cooling ability is poor

Fan motor doesn't run.

Much frost are sticked to the EVAPORATOR.

Check current flowing of the door S/W.

Check current flowing in the Fan Motor.

Check the running condition of Timer.

Check current flowing of the following components.

¥ Defrost Thermostat

¥ Fuse-M

Check current flowing of the following components.

¥ L-cord

¥ TE-Plate Heater

- 12 -

Cause

Poor contacting and gas leakage.

Shorted or broken.

Poor contacting or shorted.

Coil shorted.

Poor contacting or shorted.

Low voltage.

Poor contacting and broken.

Shorted.

Lack of capacity.

Coil of motor

Compressor.

Poor contacting.

Coil is shorted.

Running is poor.

(Coil is shorted.)

Shorted.

Replace each component.

Raise the voltage.

Replace each component.

Replace the compressor.

Replace each component.

Replace each component.

Replace each component.

6-5 SERVICE DIAGNOSIS CHART

COMPLAINT

Cooling is impossible.

Cooling ability is poor.

Foods in the

Refrigerator are frozen.

Dew or ice forms in the chamber of the set.

Dew forms in the out Case.

Abnormal noise generates.

To close the door is not handy.

Ice and foods smell unpleasant.

POINTS TO BE CHECKED REMEDY

¥ Is the power cord unplugged from the outlet?

¥ Check if the power S/W is setted to OFF.

¥ Check if the fuse of power S/W is shorted.

¥ Measure the voltage of power outlet.

¥ Check if the set is placed close to wall.

¥ Check if the set is placed close to stove, gas

¥ cooker and direct rays.

¥ Is the ambient temperature high or

¥ the room door closed?

¥ Check if putting in hot foods.

¥ Did you open the door of the set too often

¥ or check if the door is closed up?

¥ Place the set with the space of about 10cm.

¥ Place the set apart from these heat

¥ appliances.

¥ Make the ambient temperature below.

¥ Put in foods after they get cold.

¥ Don't open the door too often and closed

¥ it firmly.

¥ Check if the Thermostat is set to "WARM (1)".

¥ Set the knob to "MID (2)".

¥ Are foods placed in cooling air outlet?

¥ Plug to the outlet.

¥ Set the switch to ON.

¥ Replace a regular fuse.

¥ If voltage is low, wire newly.

¥ Check if the Thermostat is set to "COLD (3)".

¥ Is the ambient temperature within 5¡C?

¥ Is watery foods kept?

¥ Check if putting in hot foods.

¥ Did you open the door of the set too

¥ often or check if the door is closed up.

¥ Check if ambient temperature and humidity

¥ are high.

¥ Is the gap in the door packing?

¥ Place foods in high temperature section.

¥ (Front Part)

¥ Set the knob to "MID (2)".

¥ Set the knob to "WARM (1)".

¥ Seal up watery foods with wrap.

¥ Put in foods after they get cold.

¥ Don't open the door too often and close

¥ it firmly.

¥ Wipe dew with a dry cloth. This happening

¥ is solved in low temperature and humidity

¥ naturally.

¥ Fill up the gap.

¥ Is the set positioned in a firm and even place?

¥ Adjust the Adjust Screw, and position

¥ in the firm place.

¥ Remove the objects.

¥ Does any unnecessary objects exist

¥ in the back side of the set?

¥ Check if the Drip Tray is omitted.

¥ Check if the cover of mechanical room

¥ in below and front side is taken out.

¥ Place it on an original position.

¥ Place the cover at an original position.

¥ Check if the door packing becomes dirty ¥ Clean the door packing.

¥ by filth such as juice.

¥ Is the set positioned in a firm and even place?

¥ Position in the firm place and adjust the

¥ Are too much foods putted in the set?

¥ Adjust Screw.

¥ Keep foods not to reach to the door.

¥ Check if the inside of the set becomes dirty.

¥ Did you keep smelly foods without wraping?

¥ It smells plastic.

¥ Clean the inside of the set.

¥ Wrap smelly foods.

¥ The new products smell plastic, but it is

¥ removed after 1-2 weeks.

- 13 -

6-6 REFRIGERATING CYCLE

▼ Troubleshooting Chart

CAUSE

STATE OF

THE SET

STATE OF THE

EVAPORATOR

PARTIAL Freezer room and Low flowing sound of

LEAKAGE Refrigerator Refrigerant is heard and don't get cold normally.

frost forms in inlet only

TEMPERATURE

OF THE

COMPRESSOR

A little high more than ambient temperature.

WHOLE Freezer room and Flowing sound of Refrigerant Equal to ambient

LEAKAGE Refrigerator is not heard and frost isn't temperature.

don't get cold nornally.

formed.

PARTIAL

CLOG

Freeze room and

Refrigerator don't get cold normally.

Flowing sound of Refrigerant is heard and frost forms in inlet only.

A little high more than ambient temperature.

WHOLE

CLOG

MOISTURE

CLOG

Freezer room and Flowing sound of Refrigerant Equal to ambient

Refrigerator is not heard and frost isn't temperature.

don't get cold.

formed.

Cooling operation Flowing sound of Refrigerant Low than stops periodically.

is not heard and frost melts.

ambient temperature

COMP-

RESSION

Freezer room and Low flowing sound of

Refrigerator don't get cold.

Refrigerant is heard and frost forms in inlet only.

NO COMPNo compressing

RESSION operation.

A little high than ambient temperature.

Flowing sound of Refrigerant Equal to ambient is not heard and no frost.

temperature.

REMARKS

¥ A little Refrigerant

¥ discharges.

¥ Normal cooling is possible

¥ when injecting Refrigerant

¥ of regular amount.

¥ No discharging of Refrigerant.

¥ Normal cooling is possible

¥ when injecting Refrigerant

¥ of regular amount.

¥ Normal discharging of

¥ refrigerant.

¥ The capillary tube is faulty.

¥ Normal discharging of

¥ Refrigerant.

¥ Cooling operation restarts

¥ when heating the inlet of

¥ capillary tube.

¥ The pressure of high

¥ pressure part in

¥ compressor is low.

¥ No pressure of high pressure

¥ part in compressor.

▼ Leakage Detection

● Observe discharging point of refrigerant which may be in oil discharging part in compressor and hole of evaporator.

Whether Compressor runs or not.

YES -

Whether frost forms or not in

Evaporator.

No frost or forms in inlet only

Whether oil leaks or not.

Normal formed frost

Moisture Clog.

Faulty

Normal amount

Compressor.

Observe the discharging amount of Refrigerant.

No or much amount

Inject Refrigerant to Compressor and check cooling operation.

YES -

Check Compressor

Clogged by dust.

Gas leakage.

Normal formed frost in Evaporator

(Check the leakage point)

- 14 -

▼ General Control of Refrigerating Cycle

NO.

1

2

3

4

5

6

7

ITEMS

WELDING

ROD

FLUX

DRIER

ASM

VACUUM

DRY AIR

AND

NITROGEN

GAS

NIPPLE

AND

COUPLER

PIPE

CONTENTS AND SPECIFICATIONS

(1) H 30

(1) ¥ Chemical Ingredients

(1) ¥ Ag: 30%, Cu: 27%, Zn: 23%, Cd: 20%

(1) ¥ Brazing Temperature: 710~840¡C

(2) Bcup-2

(1) ¥ Chemical Ingredients

(1) ¥ Cu: About 93%

(1) ¥ P: 6.8~7.5%

(1) ¥ The rest: within 0.2%

(1) ¥ Brazing Temperature: 735~840¡C

REMARKS

¥ Recommend H34 containing 34% Ag in the

¥ Service Center.

(1) ¥ Ingredients and how to make

(1) ¥¥ Borax 30%

(1) ¥¥ Borax 35%

(1) ¥ Fluoridation kalium: 35%

(1) ¥ Water: 4%

(1) ¥ Mix the above ingredients and boil until

(1) ¥ they are transformed into liquid.

(1) Assemble the drier within 30min.

(1) after unpacking.

(2) Keep the unpacked drier at the temperature of 80~100¡C.

¥ Make amount for only a day.

¥ Holding period: 1 day

¥ Close the cover of container to prevent dust

¥ putting in the FLUX.

¥ Keep it in a stainless steel container.

¥ Don't keep the drier in a outdoor because

¥ humidity damages to it.

( 1 )

(1) When measuring with pirant Vacuum

(1 ) gauge of charging M/C, vacuum

(1 ) degree is within 1 Torr.

(2) If the vacuum degree of the cycle inside is

(2) 10 Torr. below for low pressure and 20 Torr.

(2) for high pressure, it says no vacuum

(2) leakage state.

(3) Vacuum degree of vacuum pump must be

(3) 0.05 Torr. below after 5 min.

(4) Vacuum degree must be same to the value described item (2) above for more than

20 min.

¥ Apply M/C Vacuum Gauge without fail.

¥ Perform vacuum operation until a proper

¥ vacuum degree is built up.

¥ If a proper vacuum degree isn't built up, ¥

¥ check the leakage from

¥ the Cycle Pipe line part and

¥ Quick Coupler Connecting part.

(1) The pressure of dry air must be more han 12~16Kg/cm 2

(2) Temperature must be more than

-20 ~ 70¡C.

(3) Keep the pressure to 12~6Kg/cm 2 also

(3) when substituting dry air for Nitrogen Gas.

(1) Check if gas leaks with soapy water.

(2) Replace Quick Coupler in case of leakage.

¥ Check if gas leaks from connecting part of

¥ Coupler.

(1) ¥ Put all Joint Pipe in a clean box and

(1)¥ cover tightly with the lid so that dust or

(1)¥ humidity is not inserted.

- 15 -

7. EXPLODED VIEW

▼ The parts of refrigerator and the shape of each part are subject to change in different localities or model name.

103B

281A

281B

129A

105A

103A

110A

410A

411A

416A

410H

410G

110B

110C

406B

282H

125A

416B

410F

410C

410B

304A

282G

282B

145F

604E

604F

406B

120A

327A

328A

307A

314A

308A

318A

317A

309A

310A

311A

312A

104C

407A

104B

283B

319A

104B

323A

315A

326A

325A

103C

103D

120B

409C

409B

120C

120D

- 16 -

301A

401A

303B

405C

404A

405C

405A

329A

403A

409B

330C

205A

418A

303A

330B

332A

131C

131A

149A

145A

205A

136A

136B

205A

149B

155A

155J

241C

155J

151A

155H

151B

155B

155H

241D

145B

128B

205A

127A

235A

- 17 -

200A

203A 202A

201A

212G

233A

232A

210B

210A

230A

231A

243A

P/NO. 3828JD8109D MAR.,

1998

Printed in Korea