LG LWD3081ST Service Manual

삼 흥

정 판

Internal Use Only

Website http://biz.lgservice.com

30” ELECTRIC CONVECTION BUILT-IN OVEN

SERVICE MANUAL

MODEL: LWD3081ST

CAUTION

BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL37118304

June, 2008

Printed in Korea

1

FORWARD

This LG Service Manual, “30” Electric Built-in Oven”, provides the technician with information on the operation and service of the Electric Built-in Oven. It is to be used as a training Service Manual. For specific information on the model being serviced, refer to the “Owner’s Manual” or “Tech Sheet” provided with the electric oven.

SAFETY PRECAUTIONS

• Repairs of the appliance should be carried out by a licensed technician only. Incorrect repairs may result in dangerous situations. If you need repairs, contact an LG Service Center or your dealer.

• If the power cord is defective, it must be replaced by a qualified service agent with a UL listed range cord.

• Electrical leads and cables should not be allowed to touch the oven.

• Rating plate is located on the bracket below the control panel.

• The power supply of the appliance should be turned off when it is being repaired.

WARNING

• DISCONNECT power supply cord from the outlet before servicing.

• Replace all panels and parts before operating.

• RECONNECT all grounding devices.

- Failure to do so can result in severe personal injury, death or electrical shock.

• DO NOT Touch when the oven operates.

- The interior parts will be very hot.

LG Electronics assumes no responsibility for any repairs made on our products by anyone other than Authorized Service Technicians.

TABLE OF CONTENTS

(P

AGE

)

GENERAL

• Read all instructions before use

• Model & Serial number label and tech sheet locations

• Specifications

USING YOUR RANGE

• General information

• Control panel feature

- Setting the initial control

- Start, clean/off

- Oven light (Upper/Lower)

- Timer

- Control lockout

- Set up: 8 different category

- Bake

- Timed cook, Delayed timed cook

- Broil

- Roast

- Convection bake

- Crisp convection

- Convection roast

- Recipe bank

- Proof/Warm

- Healthier roast

- My menu

- Option

- Self clean

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1) Language selection

2) Temperature selection unit

3) Display brightness

4) Sound volume Loud/Normal/Mute

5) Convection auto conversion

6) Temperature adjustment

7) Clock time

8) Reset

1-1 ~ 1-6

1-1 ~ 1-4

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1-5 1-6

2-1 ~ 2-5

2-1

2-2 ~ 2-5

DISASSEMBLY INSTRUCTIONS

• Component Locations

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DISASSEMBLY INSTRUCTIONS(UPPER)

• Replacing the control panel and related components

- Removing the Low Voltage Transformer (controller)

- Removing the Relay PCB

- Removing the door lock assembly

- Removing the Low Voltage Transformer (halogen lamp)

- Removing the Serge filter

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DISASSEMBLY INSTRUCTIONS(UPPER/LOWER)

• Replacing oven cavity components

- Removing the Broil element

- Removing the Convection element

- Removing the Blade fan

- Removing the Halogen lamp & socket assembly

• Replacing other electrical components.

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3-1 ~ 3-3

3-1

3-2 ~ 3-3

3-2~3-3

3-2 3-3 3-3 3-3 3-3

---------------------------------

3-4 ~ 3-5

3-4 3-4 3-5 3-5

3-6 ~ 3-9

- Removing the Vent motor

- Removing the Thermal limiter

- Removing the Door switch

- Removing the Thermal limiter (Double Line Brake_Upper)

- Removing the Convection motor assembly

- Removing the Hidden bake element

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3-6 3-7 3-7 3-8 3-8

3-8 ~ 3-9

DISASSEMBLY INSTRUCTIONS(LOWER)

- Removing the Thermal limiter (Double Line Brake_Lower)

- Removing the Convection motor assembly

- Removing the Thermal limiter

- Removing the Hidden bake element

- Removing the vent motor

- Removing the Door lock motor assembly

- Removing the Door switch

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DISASSEMBLY INSTRUCTIONS(UPPER/LOWER)

• Removing & Reinstalling the lift-off oven door

• Removing the oven door handle & glass

• Removing the oven door gasket

COMPONENT TEST

•

Convection motor

•

Door locking motor

•

Door locking micro switch

•

Low Voltage Transformer - Controller

•

Low Voltage Transformer - Halogen lamp

•

Oven Thermistor

•

Door switch

•

Oven lamp

•

Broil Element

•

Bake Element

•

Convection element

•

Vent motor

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3-10 ~ 3-11

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3-12 ~ 3-15

3-13 ~ 3-14

3-11 3-11 3-11 3-11 3-11 3-11 3-11

3-12

3-15

4-1 ~ 4-4

4-1 4-2 4-2 4-2 4-2 4-3 4-3 4-3 4-4 4-4 4-4 4-4

DIAGNOSIS THROUGH SCHEMATIC

HOW TO ENTER THE TEST MODE

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SAFETY CAUTION & ERROR CODE SUMMARY

CHECKING FLOW CHART BY FAILURE MODE

• Dead

• Oven does not heat (including F-9, F-19 error)

• Not operating Key (including F-3 error)

• Lock system failure (including F-10, F-20 error)

• Oven Thermistor failed (including F-1, F-2, F-4, F-5 error)

• Oven too hot (including F-6, F-16 error)

• Communication error→→F-10 error

SCHEMATIC DIAGRAM

• Strip circuits

EXPLODED VIEW

REPLACEMENT PARTS LIST

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5-1

5-2

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5-3 ~ 5-18

5-14 ~ 5-15

5-3

5-4 ~ 5-8

5-9 ~ 5-12

5-13

5-16 5-17

5-18

6-1

6-2 ~ 6-5

7-1 ~ 7-6

8-1 ~ 8-3

GENERAL

READ ALL INSTRUCTIONS BEFORE USE

Read and follow all instructions before using your oven to prevent the risk of fire, electric shock, injury to person, or damage when using the range. This guide don’t cover all possible conditions that may occur. For further assistance contact your service agent or manufacturer.

This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hunt you and others. All safety messages will follow the safety alert symbol and either the word “WARNING” or “CAUTION”. These word means :

WARNING

CAUTION

This symbol will alert you to hazards or unsafe practices which could cause serious bodily harm or death.

This symbol will alert you to hazards or unsafe practices which could cause bodily injury or property damage.

WARNING

• NEVER use your appliance for warming or heating the room.

• DO NOT use water on grease fires.

- Turn off the oven to avoid spreading the flames. Smother the fire by closing the oven door or use dry chemical,

baking soda, or foam-type extinguishers.

• Use only dry pot holders.

- Moist or damp pot holders on hot surfaces may result in burns from steam. Do not let the pot holder touch hot

heating elements. Do not use a towel or other bulky cloth.

• Storage in or on appliance.

- Flammable materials should not be stored in an oven or near surface elements.

• Wear proper apparel.

- Loose-fitting or hanging garments should never be worn while using the appliance.

• DO NOT place aluminum foil directly on the oven bottom.

• Children should be kept away from the oven.

- Accessible parts may become hot when the broil is use.

• DISCONNECT power supply cord from the outlet before servicing.

• Replace all panels and parts before operating.

• RECONNECT all grounding devices.

- Failure to do so can result in severe personal injury, death or electrical shock.

• DO NOT Touch when the oven operates.

- The interior parts will be very hot.

• ELECTRIC SHOCK HAZARD

- Unit must be disconnected from electrical outlet when making repairs, replacements, adjustments. Replace all

panels before operating oven. Failure to do so can result in death or electrical shock.

CAUTION

• DO NOT leave children alone.

- Children should not be left alone or unattended in area where appliance is in use.

- Children should never be allowed to sit or stand on any part of the appliance.

• DO NOT leave small children unattended near the appliance.

- During the self-cleaning cycle, the outside of the oven can become very hot to touch.

• Be careful when you work on the electric oven handling the sheet metal part.

- Sharp edge may be present and you can cut yourself.

• Be careful not to bend the fan blade.

• The door is very heavy. Be careful when removing and lifting door. Do not lift the

door by the handle.

1-1

GENERAL

Metal bottom

trim (Vent)

Aluminum foil

READ ALL INSTRUCTIONS BEFORE USE

SAFETY PRECAUTIONS

• Be certain your appliance is properly installed and grounded by a qualified technician.

• Do not repair or replace any part of the appliance unless specifically recommended in the manual.

• All other servicing should be referred to a qualified technician.

• Always disconnect power to appliance before servicing by unplugging, removing the fuse or switching off the circuit breaker.

• DO NOT TOUCH HEATING ELEMENTS OR

INTERIOR SURFACES OF OVEN.

Heating elements may be hot even though they are dark in color. Interior surfaces of an oven become hot enough to cause burns. During and after use, do not touch or let clothing or other flammable materials contact heating elements or interior surfaces of oven until they have had sufficient time to cool. Other surfaces of the appliance may become hot enough to cause burns. Among these surfaces are oven vent openings and surfaces near these openings, oven doors, and windows of oven doors.

• Use Care When Opening Door. Let hot air or steam escape before you remove or replace food in the oven

• Do Not Heat Unopened Food Containers. Build-up of pressure may cause container to burst and result in injury.

• Keep Oven Vent

Ducts Unobstructed.

The oven vent could become hot during oven use. Never block this vent and never place plastic or heatsensitive items on or near the vent.

NOTE:

For proper operation vent trim must be installed.

• Be certain all packing materials are removed from the appliance before operating.

Keep plastics, clothes, and paper away from parts of the appliance that may become hot.

• DO NOT force the door open.

This can damage the automatic door locking system. Use care when opening the oven door after the self-cleaning cycle. Stand to the side of the oven when opening the door to allow hot air or steam to escape. The oven may still be VERY HOT.

• DO NOT use a steel-wool pad.

It will SCRATCH the surface.

• DO NOT use harsh etching, abrasive cleaners or sharp metal scrapers to clean the oven door glass since they can scratch the surface.

It may result in shattering of the glass.

•

Be careful when removing and lifting the door.

• DO NOT lift the door by the handle.

The door is very heavy.

• DO NOT step or sit on oven door.

Be sure to follow proper installation instructions.

ELECTRICAL SAFETY

• Protective Liners. Do not use aluminum foil or any other material to line the oven bottoms. Improper installation of these liners may result in a risk of electric shock or fire.

• Do Not allow aluminum foil or meat probe to contact heating elements.

WARNING

• DO NOT place aluminum foil directly on the oven bottom.

1-2

GENERAL

READ ALL INSTRUCTIONS BEFORE USE

• Before replacing your oven light bulb, switch off the electrical power to the oven at the main fuse or circuit breaker panel.

Failure to do so can result in severe personal injury, death, or electrical shock.

• DO NOT line the oven walls, racks, bottom, or any other part of the oven with aluminum foil or any other material.

Doing so will disrupt heat distribution, produce poor baking results and cause permanent damage to the oven interior (aluminum foil will melt to the interior surface of the oven.)

SAFETY DURING USE

• Oven Racks. Always place oven racks in desired position while oven is cool.

• Always use pot holders or oven mitts when removing food from the oven.

You can be burned because cookware and plates will be hot.

• Use caution with the TIMED BAKE or DELAYED TIMED BAKE features. Use the automatic timer when cooking cured or frozen meats and most fruits and vegetables. Foods that can easily spoil, such as milk, eggs, fish, meat or poultry, should be chilled in the refrigerator first. Even when chilled, they should not stand in the oven for more than 1 hour before cooking begins, and should be removed promptly when cooking is completed.

Eating spoiled food can result in sickness from food poisoning.

• Should an oven fire occur, leave the oven door closed and turn the oven off. If the fire continues, throw baking soda on the fire or use a fire extinguisher.

• DO NOT put water or flour on the fire.

Flour may be explosive and water can cause a grease fire to spread and cause personal injury.

• DO NOT use the broiler pan without the grid. DO NOT cover the grid with aluminum foil.

CHILD SAFETY

WARNING

• Children should be kept away from the oven.

• Accessory parts will become hot when the broiler is in use.

CAUTION

• Children should not be left alone or unattended in area where appliance is in use. Children should never be allowed to sit or stand on any part of the appliance.

CAUTION

• DO NOT leave small children unattended near the appliance.

During the self-cleaning cycle, the outside of the oven can become very hot to the touch.

1-3

GENERAL

Metal bottom trim

(Vent)

READ ALL INSTRUCTIONS BEFORE USE

SAFETY WHEN CLEANING

• Do Not Clean Door Gasket. The door gasket is essential for a good seal. Care should be taken not to rub, damage, or move the gasket.

• Do Not Use Oven Cleaners. No commercial oven cleaner or oven liner protective coating of any kind should be used in or around any part of the oven.

• Before self cleaning the oven. Remove broiler pan, all oven racks, meat probe and any other utensils from the oven cavity.

• Never keep pet birds in the kitchen. The health of birds is extremely sensitive to the fumes released during an oven self-clean cycle. Fumes may be harmful or fatal to birds. Move birds to well-ventilated room.

• Important Instruction. In the event the self clean error code F is displayed, and error melody sounds, the oven is malfunctioning in the self clean mode. Switch off the electrical power to the main fuse or breaker and have serviced by a qualified technician.

• Make sure oven lights are cool before cleaning.

• DO NOT block the oven vent during operation.

This can damage the electric parts of the oven. Air must be able to move freely. The metal bottom trim (vent) should be properly assembled on the front bottom of oven before installing the oven door.

1-4

GENERAL

MODEL & SERIAL NUMBER LABEL AND

TECH SHEET LOCA

The Model/Serial Number label and Tech Sheet locations are shown below.

Model & Serial Number Location

TION

Tech Sheet Location

1-5

GENERAL

SPECIFICA

Product Specification List

No Items Specifications Remarks

1

Model name

2

Rating power source

3

Heat source

4

Max power

5

Max input current

6

Rating power consumption

& Rating input current

LWD3081ST Built-in Double wall oven

240V~60Hz

Sheath heater & Carbon heater

7.8 KW

32.5 A

Bake 2,500W / 10.4A×2

Broil 4,000W / 16.7A×2

Convection 2,500W /10.4A×2

Lamp 12V/10W/0.8A×2

Lamp (12V/10W/0.8A×2)×2

Cooling motor 120V/41W/0.34A×2

Convection motor 120V/42W/0.65A×2

Locking motor 120V/3.5W/0.03A×2

TIONS

North American market

Single phase & 4-wires

120/208V : 5.9 KW

Upper+Lower oven

Front ceiling area

Left & right sides

7

Efficiency

8

Control style

9

Display

10

Power control range

11

Capacity (Overall, W×H×D)

12

Capacity (Usable)

13

Cut out size (

14

Unit Dimension

15

Net Weight

16

Packing size

17

Packing weight

18

Stack height

W×H×D

Higher than 80%

Touch screen, glass touch & Micom

White LCD

170~550˚F (77~288˚C)

4.7 cu.ft (622×449×474 )

3.2 cu.ft (601×345×436 )

)

724×1,316×596

755×1,322×619

120 Kg

855×1,470×776

135 Kg

2 levels

Liquid Crystal Display

At bake mode

24 1/2×17 11/16×18 5/8

23 5/8×13 9/16×17 3/16

28 1/2×51 13/16×23 1/2

29 3/4×52 1/16×24 3/8

264 lbs

33 11/16×57 7/8×30 9/16

297 lbs

1-6

USING YOUR OVEN

GENERAL INFORMA

Rating Label

Model numbers are recorded on the rating label. Rating label is located on the lower left bottom area of the controller. It can be seen by opening the Upper door. Before ordering parts, write down the correct model and serial number from rating label. This avoids incorrect shipments and delays. Please refer to parts reference material when ordering replacement parts.

Functional Operation

Bake Mode

Top and hidden bottom elements operate during bake. Bake can be used to cook foods which are normally baked. Oven must be preheated. Convection fan and heater operates during the Preheat cycle of Bake mode.

TION

Cooking Guide

Refer to the owners manual for recommendations of times and temperatures. Times, rack position, and temperatures may vary depending on conditions and food type. For best results, always check food at minimum time. When roasting, choose rack position based on size of food item.

Broil Mode

Top element operates during broil. Broil can be used to cook foods which are normally broiled. Preheating is not required when using broil. All foods should be turned at least once except fish, which does not need to be turned.

Convection Bake / Roast Mode

Upper element, lower element, Rear element and fan operate during convection bake. Convection bake should be used for cooking casseroles and roasting meats. Oven should be preheated for best results when using convection bake. Pans do not need to be staggered. Cooks approximately 25% quicker than bake.

Broil element

Convection element

Bake element

2-1

USING YOUR OVEN

1

3

9

5

642 8

7

10 11 12 19

13 14 15 21

1716 18 20

CONTROL P

READ THE INSTRUCTIONS CAREFULLY BEFORE USING THE OVEN. For satisfactory use of your oven, become familiar with the various features and functions of the oven as described below.

1. UPPER LIGHT: Use to turn the upper oven lights on and off.

2. LOWER LIGHT: Use to turn the lower oven lights on and off.

3. UPPER OVEN: Use to activate the upper oven for the main

menu selection.

4. LOWER OVEN: Use to activate the lower oven for the main menu selection.

5. START: Use to start all oven features. Activate the CONTROL LOCK for 3 seconds holding.

6. TIMER ON/OFF: Use to set or cancel the timer.

7. UPPER CLEAR/OFF: Use to stop cooking or cancel the

setting of the upper oven.

8. LOWER CLEAR/OFF: Use to stop cooking or cancel the setting of the lower oven.

9. Touch Screen: Show the time of day, main menu, and oven temperature; whether the oven is the bake, broil or selfcleaning mode; and the times set for the timer or automatic oven operations. The display panel will go into a “sleep” mode if no activity. Touch the display once to activate and again to make your selection.

ANEL FEA

10. Bake: Use to select the normal bake mode.

11. Broil: Use to set the variable broil mode.

12. Roast: Use to select the normal roast mode.

13. Conv. Bake: Use to select the convection bake mode.

14. Crisp Conv.: Use to select the crisp convection mode.

15. Conv. Roast: Use to select the convection roast mode.

16. Recipe Bank: Use to recall the recipe category of gourmet

food.

17. Proof/Warm: Use to proof bread / Use to hold food warm.

18. Healthier Roast: Use to select the healthier roast mode.

19. My Menu: Use to save or recall the favorite 10 cook mode.

20. Set up: Use to change the special settings.

21. Self Clean: Use to select the self-cleaning cycle

NOTE:

• Press CLEAR/OFF pad. Allow the oven to cool for one hour. Put back into operation.

• If the function error code repeats, disconnect the power to the oven and call for service.

• If the oven was set for a timed oven operation and a power failure occurred, the clock and all programmed functions must be reset.

• The time of day will flash and PF will appear in the display when there has been a power failure.

TURES

2-2

USING YOUR OVEN

1. SETTING THE INITIAL CONTROL

1) LG logo display 8 seconds. - Initial display (Power Failure or Reset) First, Select Language, and set clock time, and then the oven can be used. If power failure occurs, the oven will remember your language selection however you will still need to set the time of day.

2) Key Function, General Usage While selecting any function, an appropriate key input sequence must be followed. In case of an inappropriate input sequence the key error beeps sound. Numeric key are used while entering data (temperature and time) for cooking.

2. START, CLEAN/OFF

1) START key to start oven

2) CLEAR/OFF key to cancel a program during cooking or erase during programming.

3) Hour and Min setting

TIMER TIMER

4) When the set time has elapsed, “Timer End” is displayed. Timer alarm melody will sound every 15 seconds until TIMER is pressed. Press timer key in order to cancel running timer or clear timer end alarm. The time less than 1hour is displayed in min and sec on timer operation.

NUMERIC

desired time-hour and min)

(Set the

TIMER

5. CONTROL LOCKOUT

1) The START key controls the Control Lock feature. The Control Lock feature automatically locks most oven controls from being turned ON. It does not disable the timer and the interior oven light. The Control Lock feature will cancel the cooking mode and will lock the oven controls at any time when you activate this feature.

2) Key Input Process : START (for 4 seconds)

Lock melody will sound.

To unlock the control, press START (for 4 seconds)

3)

Unlock melody will sound.

3. OVEN LIGHT [UPPER / LOWER]

1) Requirement: The Oven Light is used to turn on or off the oven light.

2) Key Input Process: Oven Light-ON/OFF toggle operation. If the Oven Light is on by pressing oven light key, the light is on even if the door is closed. Oven light key can be operated while door opens.

3) Exception: Oven light will not operate during a

self clean cycle. Once self clean is complete the oven light will not operate until oven cools down.

4. TIMER

1) Requirement: The timer works like an alarm clock that will continuously beep until turned off. The oven can fully operate during the use of the timer.

- Setting Limit : 11Hour : 59Min

2) Min and Sec Setting;

TIMER

NUMERIC (Set the

desired time-min and sec)

TIMER

6. SET UP (8 DIFFERENT CATEGORIES)

1) Language Selection

1. Requirement: The scroll display can be shown either in English/Spanish/French.

2. Key Input Process

Set Up Select language OK

3. CLEAR to reject the change.

2) Temperature Selection unit

1. Requirement: The oven control can be programmed to display temperatures in Fahrenheit or Centigrade. The oven has been preset at the factory to display in Fahrenheit.

2. Key Input Process

Set Up Select Temp.Unit OK

3. CLEAR to reject the change.

2-3

USING YOUR OVEN

3) Display brightness

1. Requirement: LCD Display Brightness adjustment

2. Key Input Process

Set Up Select Brightness OK

3. CLEAR to reject the change.

4) Sound Volume Loud/Normal/Mute

1. Requirement: When want to reduce or increase the volume.

2. Key Input Process

Set Up Select Volume OK

3. CLEAR to reject the change.

4. Exception : Error Alarm, Preheat Alarm, Timer End Alarm – If Mute, Normal Beep Sounds.

5) Convection Auto Conversion

1. Requirement: When using convection, Auto conversion will automatically convert an entered regular baking temperatures to convection baking temperatures.

2. Key Input Process

Set Up Select mode OK

7) Clock Time

1. Requirement: The clock key is used to set the clock in idle mode. The clock can be set to 12 or 24 hour format. am and pm can be set in 12 hours.When the oven is initially plugged in, or when the power supply to the oven is interrupted ?

2. Key Input Process

Set Up

3. CLEAR to cancel the clock setting.

8) Reset

1. Requirement: Setting Value will be default value.

2. Key Input Process

Set Up Select Yes, No OK

3. CLEAR to reject the change.

Select

hours

select am, pm OK

set clock time

7. BAKE

3. CLEAR to reject the change.

6) Temperature Adjustment

1. To change the oven temperature during use follow the steps below.

Fahrenheit : (-)35 ~ (+)35 Centigrade : (-)19 ~ (+)19

2. Key Input Process

Set Up Adjust Temperature OK

3. CLEAR to reject the change.

* Note: This adjustment is available for Bake,

Roast, Convection Bake, Roast, Crisp Conv. Healthier Roast. Temperature Adjustment can be confirmed by measuring real Oven Cavity Temperature.

BAKE

Desired Temperature

START

8. TIMED COOK, DELAYED TIMED COOK

BAKE

BROIL

START

TIME

Desired

Temperature

Desired

Temperature

Desired

start time

START

Cook &

warm

START

Cook &

warm

2-4

USING YOUR OVEN

9. BROIL

Broil

Desired Temp

High / Med / Low

Desired Broil

Full / Center

10. ROAST

ROAST

Desired

Temperature

11. CONVECTION BAKE

Conv.

Bake

Desired

Temperature

12. CRISP CONVECTION

Crisp

Conv.

Desired

Temperature

START

16. HEALTHIER ROAST

Healthier

Roast

Desired

Temperature

* Note: The meat probe must be used in this

feature. (refer to the HEALTHIER ROASTING CHART.)

Selected food

category

START

17. My MENU

My Menu create

Desired

temp

Select

My menu

Option

START

Select cook

menu

Enter

My menu

13. CONVECTION ROAST

Conv. Roast

Desired

Temperature

14. RECIPE BANK

Recipe

Corresponding

menu

Select

Recipes

15. PROOF/WARM

Proof

Warm

Desired

Cook time

Selected

Temp.

START

18. OPTION

Option

19. SELF CLEAN

Option

Start

Time

Temp Cook time

Start time

Select

clean level

: Light

→

2Hours

: Normal

3Hours

Desired Start

→

time

OK

START

2-5

DISASSEMBLY INSTRUCTIONS

This section instructs you on how to service each component inside the range. The components and their locations are shown below.

Main PCB

Low Voltage Transformer

Upper Oven Light

Upper Door Latch Assembly

Upper Door Switch

Hinge Hanger

COMPONENT LOCA

TIONS

Display PCB

Side Key PCB

Oven Sensor

Convection Motor

Convection Heater

Bake Heater

Lower Oven Light

Lower Door Latch Assembly

Lower Door Switch

Hinge Hanger

Broil Heater Oven Sensor

Convection Motor

Convection Heater

Bake Heater

3-1

DISASSEMBLY INSTRUCTIONS(UPPER)

REPLACING THE CONTROL P

ANEL AND RELA

WARNING

• ELECTRIC SHOCK HAZARD

- Unit must be disconnected from electrical outlet when making repairs, replacements, adjustments. Replace all panels before operating oven. Failure to do so can result in death or electrical shock.

CAUTION

• Be careful when you work on the

electric oven handling the sheet metal part.

1. Turn off the electrical supply going to the oven.

2. Open the upper door assembly.

3. Remove the 3 screws from below the control panel.

TED COMPONENTS

6.

Disconnect the 8EA connector from PCB assembly (CN01, CN02, CN03, CN04, CN05, CN08, CN11, CN12) and separate control panel carefully.

CN03

CN05

CN02

CN01

You can see the interior of electric parts chamber.

7.

CN05

CN08

CN04

CN11

CN12

4.Close the upper door assembly.

5. Lift the control panel off from the guide hooks

and top trim. Tilt the control panel down. Hinge panel into slots on main body and let control panel rest.

Guide hole

Hook

8. To remove the following components follow the sequence below. Controller LVT, Relay PCB, Door lock motor, Halogen lamp LVT, Surge filter can be serviced without removing the oven.

Relay

Controller

LVT

To remove the PCB Low voltage transformer.

1)

Relay

PCB

Door lock

motor

Halogen lamp

LVT

Remove the 1 screw.

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DISASSEMBLY INSTRUCTIONS(UPPER)

Micro Switch

Motor

Lock

Unlock

Hook

Cam

2) To remove the Relay PCB, Remove 1 screw and slide relay PCB out. Disconnect the 13EA connector from PCB assembly(CN01, CN02, CN03, CN04, BL, YL, WH, VI, VI, RD, YL, RY19, RY20) and separate Relay PCB assembly.

RY20 RY19

RD

RD VI

VI

YL

BL

CN04

CN03

3)

To remove the Door lock assembly, Open the door,

YL

VI

WH

CN02

CN01

and remove the 2 screws located on the front grill. Remove the 2 connectors.

clean until the temperature fall below 500°F/260°C. If there is a failure of this motor the following steps can be followed to unlock the door manually.

Unlocking status Locking status

TO UNLOCK THE OVEN DOOR MANUALLY

In case of need, the oven door could be unlocked manually for the service. Follow the steps below.

1. Disconnect oven from the power source.

2. Using a L shaped object (close hanger) insert it into the gap between the door and the control panel. Grasp the hook on the motor and pull towards the left. Be careful not to damage the oven.

3. While holding the door latch in the Unlocked position you can now open the door.

Note: Refer to the service

manual for proper replacement of the door lock motor.

Unlocking tool

Door

Hook

DOOR LOCKING MECHANISM

The door lock assembly is located on top of the Upper and Lower oven. The structural elements are as below.

The door lock is controlled by the PCB and is activated when the oven is put into a self clean cycle. The oven will remain locked after a self

4) To remove the Halogen lamp, remove the 1screw.

Disconnect the 5 connections.

5) To remove the Surge filter, remove the controller LVT and then remove the 1screws located back plate.

Disconnect the 2 connections.

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DISASSEMBLY INSTRUCTIONS(UPPER/LOWER)

REPLACING OVEN CA

WARNING

• ELECTRIC SHOCK HAZARD

- Unit must be disconnected from electrical outlet when making repairs, replacements, adjustments. Replace all panels before operating oven. Failure to do so can result in death or electrical shock.

CAUTION

• Be careful when you work on the

electric oven handling the sheet metal part.

1. Turn off the electrical supply going to the oven.

2. Remove the Upper/Lower door assembly.

3. To remove the following components follow the sequence below. Broil element, Convection element, Fan blade, Oven thermistor, Halogen lamp can be serviced without removing the oven.

VITY COMPONENTS

1) To remove the broil element:

a. Remove the 4 screws from the front and rear

brackets.

b.

Pull the element forward so that you can access the terminals and disconnect the wires.

Broil elements

Convection

Halogen lamp 3EA

elements

Blade fan

Oven

Thermistor

2) To remove the convection element:

a. Remove the 4 screws on the convection fan

cover.

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DISASSEMBLY INSTRUCTIONS(UPPER/LOWER)

Mounting

Scews

(3ea)

Fan Cover

Scews

(4ea)

OuterInner

Cavity

Convection

Heater

Fan Blade

Fan Cover

Washer

Bushing

Nut

Fan Motor

b. Remove the 4 convection element screws.

(The convection element is fragile. Care should be taken to avoid any risk of injury)

c.

Pull the element forward so that you can access the terminals and disconnect the wires.

4)

To remove the halogen lamp & socket assembly

a. There are three halogen lamp & socket

assembly in the oven cavity.

Halogen lamp 3EA

b. Insert a flat blade

screwdriver into the guide hole and pull off.

CAUTION

Be careful not to bend the fan blade.

3) To remove Blade fan(Convection fan)

a. Remove nut by screwing clockwise.

(be careful fan blade is bent easily)

b. Fan blade can be replaced from inside oven.

C. Replace the halogen

lamp, then reinstall the glass cover.

* Note :

The above instructions can be used for replacing any of the halogen bulbs in either oven.

5) To remove oven temperature sensors,

Remove the 2 screws from the temperature sensor bracket. Pull the temperature sensor forward and remove the connector.

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