Samsung FTQ387LWUX, FTQ307NWGX Service Manual

FREE STANDING RANGE

BASIC: FTQ387LWUX MODEL: FTQ307NWGX MODEL CODE: FTQ307NWGX/XAA

1. Precaution

2. ProductSpecication

3. Disassembly and Reassembly

4. Troubleshooting

5. Exploded Views and Part List

6. PCB Diagrams

7. Schematic Diagrams

8. Wiring Diagram

Refer to the service manual in the GSPN(see rear cover) for the more information.

•Contents

1. Precaution ..............................................................................4

1-1 Forward .............................................................................4

1-2 Safety Precautions .....................................................................4

1-3 Important Safety Instructions .............................................................5

1-4 Model & Serial Number Label and Tech Sheet Locations .......................................7

2.Specications ...........................................................................8

2-1 Features .............................................................................8

2-2 Table of Specications .................................................................10

2-3 Accessory ...........................................................................11

3. Disassembly and Reassembly .............................................................12

3-1 Removing Cover-Back Main Wire, Cover-Back Guard Wire and PCB-Main ........................12

3-2 Removing PCB-Sub & L.V.Trans .........................................................13

3-3 Removing Surface elements and The Ceramic Glass Cooktop ..................................14

3-4 Replacement of the Assy Control Panel ....................................................15

3-5 Replacement of the Assy-Working Coil ....................................................16

3-6 Replacement of the Assy-Induction Module .................................................19

3-7 Removing The Latch-Door & Switch-Door Plunger ...........................................21

3-8 Removing Heater-Broil .................................................................22

3-9 Removing Heater-Bake ................................................................23

3-10 Removing Convection Element, Fan-Covnection and Motor-Convection .........................25

3-11 Removing Lamp .....................................................................26

3-12 Removing Sensor-Thermistor ..........................................................27

3-13 Removing Assy-Drawer & Heater-Warming Drawer & Motor-Blower. . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

3-14 Removing Assy-Drawer & Heater-Warming Drawer .........................................29

3-15 Removing Assy AC Fan Motor ..........................................................30

3-16 Removing and Replacing Oven Door .....................................................31

3-17 Removing Handle-Door and Glass-Inner ..................................................32

3-18 Removing Gasket-Door ...............................................................35

3-19 Removing The Panel-Side .............................................................36

4. Troubleshooting ........................................................................37

4-1 Failure Display Codes .................................................................37

4-2 Electrical Malfunction ..................................................................60

5. Exploded Views and Parts List ............................................................69

5-1 Exploded Views ......................................................................69

5-2 Main Parts List .......................................................................70

5-3 Door Parts List .......................................................................71

5-4 Control Parts List .....................................................................72

5-5 Cooktop Parts List ....................................................................73

5-6 Drawer Parts List .....................................................................75

5-7 Standard Parts List ....................................................................76

•Contents

6. PCB Diagrams ..........................................................................78

6-1 PCB Diagrams (Main) .................................................................78

6-2 PCB Diagrams (Sub) ..................................................................79

7. Schematic Diagrams .....................................................................80

7-1 Schematic Diagram ...................................................................80

1. Precaution1. Precaution

1-1 Forward

This SAMSUNG Service Manual, “ 30” Freestanding Self-Cleaning Electric Range,” provides the technician with information on the operation and service of the Freestanding Self-Cleaning Electric Range. It is to be used as a

training Service Manual. For specic information on the model being serviced, refer to the “Owner’s Manual” or

“Tech Sheet” provided with the electric range.

1-2 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 SAMSUNG Service Center or your dealer.

• If the power cord is defective, it must be replaced by a qualied 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 left side of warming drawer.

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

WARNING

• To avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance

to avoid electrical shock.

• When the oven operates, the interior parts will be very hot.

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

1. Precaution

1-3 Important Safety Instructions

Read and follow all instructions before using your oven to prevent the risk of re, 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.

WARNING

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

• Be sure your appliance is properly installed and grounded by a qualied technician.

• Do not repair or replace any part of the appliance unless specically recommended in the manual. All other servicing should be referred to a qualied technician.

• Always disconnect power to appliance before servicing

by removing the fuse or switching off the circuit breaker

WARNING

- INJURIES CAN OCCUR IF THE RANGE TIPS

- INSTALL ANTI-TIP DEVICE PACKED WITH RANGE

- FOLLOW ALL INSTALLATION INSTRUCTIONS

To reduce the risk of tipping of the range, the range must be secured by properly installed anti-tip devices. To check if the bracket is installed properly,

- Warming drawer : grasp the top rear edge of the Range and carefully attempt to tilt it forward. verify that the anti-tip devices are engaged.

- Storage drawer : Remove drawer and verify leveling leg is inserted into and fully secured by the anti-tip devices.

Refer to the installation manual for proper anti-tip bracket installation.

• Do not step, lean or sit on the doors of the range

-this can cause the range to tip, resulting in burns or

serious injuries.

WARNING

• 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 ammable

materials contact heating elements or interior

surfaces of oven until they have had sufcient

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.

• Do Not Leave Children Alone - Children should not be left

alone or unattended in area where appliance is in use. They should never be allowed to sit or stand on any part of the appliance.

Never Use Your Appliance for Warming or Heating the Room.

•

• Storage in or on Appliance – Flammable materials should

not be stored in an oven or near surface units. Be sure all packing materials are removed from the appliance before operating it. Keep plastics, clothes and paper away from parts of the appliance that may become hot

• Wear Proper Apparel – Loose-tting or hanging garments

should never be worn while using the appliance.

• Do Not Use Water on Grease Fires – Turn off oven to avoid spreading the ame. Smother the re or ame by

closing the door or use dry chemical, baking soda or foam- type extinguisher.

• Use Only Dry Potholders – Moist or damp potholders on

hot surfaces may result in burns from steam. Do not let potholder touch hot heating elements. Do not use a towel or other bulky cloth.

CAUTION

Do not store items of interest to children in cabinets above a range or on the back guard of a range – children climbing on the range to reach

items could be seriously injured.

WARNING

SURFACES

• DO NOT TOUCH SURFACE UNITS OR AREAS NEAR

UNITS – Surface units may be hot even though they

are dark in color. Areas near surface units may become hot enough to cause burns. During and after use, do not

touch, or let clothing or other ammable materials contact

surface units or areas near units until they have had

sufcient time to cool. Among these areas are the cook-

top and surfaces close to the cook-top.

WARNING

To avoid risk of electrical shock, personal injury, or

death, make sure your range has been properly grounded and always disconnect it from main power supply before any servicing.

1. Precaution

SURFACE COOKING UNITS

• Use Proper Pan Size – This appliance is equipped

with one or more surface units of different sizes.

Select utensils having at bottoms large enough

to cover the surface unit heating element. The use of undersized utensils will expose a portion of the heating element to direct contact and may result in ignition of clothing. Proper relationship of utensil to

burner will also improve efciency.

• Never Leave Surface Units Unattended at High

Heat Settings – Boil overs may cause smoking and greasy spillovers may ignite.

• MakeSureReectorPansorDripBowls

Are in Place – Absence of these pans or bowls

during cooking may subject wiring or components

underneath to damage.

•

Protective Liners – Do not use aluminum foil to line surface unit drip bowls or oven bottoms, except as suggested in the manual. Improper installation of these

liners may result in a risk of electric shock, or re.

• Glazed Cooking Utensils – Only certain types of glass, glass/ceramic, ceramic, earthenware, or other

glazed utensils are suitable for range-top service without breaking due to the sudden change in temperature.

• Utensil Handles Should Be Turned Inward and Not Extend Over Adjacent Surface Units – To

reduce the risk of burns, ignition of ammable

materials, and spillage due to unintentional contact with the utensil, the handle of a utensil should be positioned so that it is turned inward, and does not

extend over adjacent surface units.

•

Do Not Soak Removable Heating Elements –

Heating elements should never be immersed in water.

• Be sure you know which control pads operate each

surface unit. Make sure you turned on the correct surface unit.

SELF-CLEAN OVENS

• 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.

• Clean in the self-clean cycle only parts listed in this manual. Before self-cleaning the oven, remove

the broiler pan and any utensils from the oven.

•

Never keep pet birds in the kitchen – the health

of birds is extremely sensitive to the fumes released during an oven selfclean cycle. Fumes may be harmful or fatal to birds. Move birds to well-ventilated room.

• Important Instruction – In the event the self-clean mode “F” code goes on, or three long beeps sound, oven is malfunctioning in the self-clean mode. Turn off or disconnect appliance from power supply and

have serviced by a qualied technician.

VENTILATING HOODS:

• Clean Ventilating Hoods Frequently – Grease should not be allowed to accumulate on hood or lter.

•

Whenamingfoodsunderthehood,turnthefanon.

OVEN

• 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 is located above the left rear surface unit. this area could become hot during oven use. Never block this vent and never place plastic or heatsensitive items on vent

• Placement of Oven Racks – Always place oven racks in desired location while oven is cool. If rack must be moved while oven is hot, do not let potholder contact hot heating element in oven.

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

GLASS/CERAMIC COOKING SURFACES

• Do Not Cook on Broken Cook-Top – If cook-top should break, cleaning solutions and spillovers may penetrate the broken cooktop and create a

risk of electric shock. Contact a qualied technician

immediately.

• Clean Cook-Top With Caution – If a wet sponge or cloth is used to wipe spills on a hot cooking area, be careful to avoid steam burn. Some cleaners can produce noxious fumes if applied to a hot surface.

DEEP FAT FRYERS:

• Use extreme caution when moving the grease kettle

or disposing of hot grease.

1. Precaution

Model & Serial Number Location

Tech Sheet Location (On Low Rear Cover)

1-4 Model & Serial Number Label and Tech Sheet Locations

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

2.Specications

Biggest Capacity Large family food in holiday Turkey 24lbs = 4.4 cu ft

- Samsung : 5.9 cu.ft

- Competitors A : 5.4 cu.ft B : 5.3 cu.ft

Steam Cleaning Casual clean without any smell More frequently

- Samsung : Pyrolitic + Steam Clean

- Competitors : Pyrolitic

Surround Air - vection Even cooking and energy efficiency

- Samsung : 3 fans

- Competitors : 1 fans

Samsung Competitors

2-1 Features

Features

Surround Air-vection

- Main Convection Fan with 2-Sub.Fans makes complex small Swirl.

- Optimal Heat Distribution and Even Cook Performance.

- Updated Control Algorithm (for the Swirl Improvement of Door Front/Left/Lower)

Easy Steam Cleaning

- More Efciency & Time Saving

- Available for Water and Oven Washing Liquid (Water + Detergent)

- Takes about 20minutes to Clean-out easily

- Steam ts Light and frequent cleaning,

(Pyrolitic Self-cleaning ts Greasy dirt cleaning)

2.Specications

Features

Item Steam Clean

- Pour the water 10oz (+detergent)

How to Use

Operating (Temperature) About 70 ºC

Operating Time 20 Minutes

Used Heater Bottom Baked Heater

Smell No smell

Tool to clean Wet cloths

- Push the steam cleaning button

- In around half min, the oven will stop automatically.

- Wipe it out with wet cloths.

Biggest Capacity

- The biggest capacity in current US market !!!

- It benets consumers to cook for large family food in Thanksgiving & Christmas seasons

( i.e Turkey 25 lbs = 4.4 cu ft, 20 lbs = 3.5 cu ft)

2.Specications

2-2TableofSpecications

Items

Model Name FTQ387LWUX FTQ307NWGX

Category Convection Convection

Overall Width 30” 30”

Installation type Freestanding Freestanding

Color availability STS STS

Control Oven Touch Touch

Cooktop Knob Touch

Display LED LED

Electronic clock Yes Yes

Control lock capability Yes Yes

Audible preheat signal Yes Yes

Cooktop Material Ceramic glass Ceramic glass

# of element 5 4

Power LR 6”-1,200W 6”-1400/2000W

RR 6”-1,200W 7”-1800/2600W

LF Dual(6”/9”-1,200/2,500W) 11”-2400/3700W

RF Triple(6”/9”/12”)

Oven Capacity(cu.ft) 5.7 5.9

Broil element 3800 watts 3800 watts

Bake element 3000 watts 3000 watts

Convection System Yes Yes

-Convection element Yes (800W, 240V) Yes (800W, 240V)

# of Racks 3 3

Interior oven light 120V, 40 watts 120V, 40 watts

Cleaning Pyrolytic &Steam Pyrolytic &Steam

Drawer Type Warming drawer Warming drawer

Element 600 watts 600 watts

Warming rack No No

Dimensions

(inch)

Power Rating(240V 60Hz) Range : 4500W

Oven Interior(W x H x D) 24 1/2 x 20 1/4 x 19 3/8 24 1/2 x 20 1/4 x 19 3/8

Exterior - Width 29 7/8 29 7/8

Exterior - Height 36 (cooktop),

Exterior - Depth 25 11/16 (Door),

Net weight: Lbs (Kg) 181 lbs (82kg) 211lbs(96KG)

BASIC MODEL NEW MODEL

(1100/2200/3000W)

47 5/8 (backguard top)

28 (with handle)

Cooktop : 8000W

Model

6”-1400/2000W

36 (cooktop),

47 5/8 (backguard top)

25 11/16 (Door),

28 (with handle)

Range : 4500W

Cooktop :7000W

2.Specications

2-3 Accessory

Item Description Code No. Q’ty

Rack Flat DG75-01001A 3

Tray Grate DG63-00105A 1

Tray Broil DG63-00106A 1

Assy-Cleaning Kit DG97-00085A 1

3. Disassembly and Reassembly

3-1RemovingCover-BackMainWire,Cover-BackGuardWireandPCB-

Main

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect power before servicing the range. Replace all panels before operating range. Failure to do so can result in death or electrical shock.

PRECAUTION

When you work on the electric range, be careful when handling the sheet metal parts. Sharp

edges may be present, and you can cut yourself if you are not careful.

Parts Explaination Photo Explaination

Cover-Back Main Wire, CoverBack Guard Wire and PCB-Main

PCB Main

Cover-Back Guard Wire

Cover-Back Main Wire

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

2. Pull the range away from the wall so that you can access the rear panel.

3. Remove the 8 screws from the Cover-Back Main Wire and remove the panel.

4. Remove 3 screws from the Cover-Back Guard Wire and remove the cover.

5. Remove 2 screws of PCB Main and separate PCB Main.

3. Disassembly and Reassembly

3-2 Removing PCB-Sub & L.V.Trans

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect power before servicing the range. Replace all panels before operating range. Failure to do so can result in death or electrical shock.

PRECAUTION

When you work on the electric range, be careful when handling the sheet metal parts. Sharp edges may be present, and you can cut yourself if you are not careful.

Parts Explaination Photo Explaination

PCB-Sub & L.V.Trans

PCB-Sub

2 Screws

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

2. Pull the range away from the wall so that you can access the rear panel.

3. Remove Cover-Back Main Wire and Cover-Back Guard Wire (See step 4 on page 12)

There are 2 PCB’s (power

control board). When you check PCB, check the proper PCB in default mode and check main PCB.

5. To remove the control power

supply: a) Disconnect 2 connectors. b) Remove the two screws.

3. Disassembly and Reassembly

3-3 Removing Surface elements and The Ceramic Glass Cooktop

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect power before servicing the range. Replace all panels before operating range. Failure to do so can result in death or electrical shock..

Parts Explaination Photo Explaination

1. Unplug the cord or disconnect power

2. Open oven door and remove the 3

screws located at the front of the cook-top, then close the door.

Surface elements and Ceramic Glass Cooktop

3. Pull the range out of its mount location so that you can access the rear of the unit.

4. Remove Cover back main wire and

Cover Back-guard wire.

5. Unscrew 3 points on the terminal block and disconnect 2 wires from AC fan motor and main PCB.

3. Disassembly and Reassembly

Double-Faced Tape

Parts Explanation Photo Explanation

Surface elements and Ceramic Glass Cooktop

Slightly lift up and pull up the cook-top and then unplug the 2 connectors wire at

the back by squeezing side tabs.

Remove 3 screws both side of bracket mountain.

Attention

The Ceramic Glass may break if you use force especially on the edge.

3-4 Replacement of the Assy Control Panel

Parts Explanation Photo Explanation

Assy Control Panel

1. Lift up the Assy Touch PCB.

(Assy Touch PCB is xed by double-faced

tape)

2. Disconnect all sub-wire.

3. Replace the Assy Touch PCB or Control Panel.

3. Disassembly and Reassembly

bending

3-5 Replacement of the Assy-Working Coil

Explanation Photo

Assy-Working Coil A

Cover-Coil A

Adiabatic-Coil A

Assy-Working CoilE

Cover-Coil E

Adiabatic-Coil E

Assy-Working Coil B Cover-Coil B Adiabatic-Coil B

Assy-Working Coil A Cover-Coil A Adiabatic-Coil A

Parts Explanation Photo Explanation

Assy-Working Coil

1. Bend the Cover-Coil a little.

2. Lift up the Cover-Coil from the hook. (3-point)

3. Disassembly and Reassembly

pull & rotate

3-5 Replacement of the Assy-Working Coil

Parts Explanation Photo Explanation

Assy-Working Coil

3. Remove the Adiabatic-Coil by using some tool. (Do not remove by hand. Adiabatic can be easily broken.)

4. Disconnect all lead wires from the Assy-Working Coil.

5. For the replacement of Sensor-Top, pull the Sensor-Top toward bottom side.

6. Rotate the Sensor-Wire by 90degree until the Sensor-Top can be remove from the Coil-Working.

6. Rotate the Spring ETC-Base by 90degree in order to replace.

3. Disassembly and Reassembly

wire color guide

‘RD’ marking

‘BL’ marking

‘WH’ marking‘WH’ marking

‘BK’ marking

3-5 Replacement of the Assy-Working Coil

Parts Explanation Photo Explanation

Assy-Working Coil

7. After replacement, connect the Sensor-Top wire according to carved wire color guide.

warning

Wire connecting position is very improtant.

Please keep attention.

3. Disassembly and Reassembly

3-6 Replacement of the Assy-Induction Module

Parts Explaination Photo Explaination

Remove 10 screws on the CaseInduction and 8 screws on 4 points of lead wires of the Working Coil.

Lift up the Assy Touch PCB.

(Assy Touch PCB is xed by Double

AssyInduction Module

faced tape)

Disconnect all sub- wire.

Warning

Wire connecting position is very improtant.

Please keep attention.

Lift up the case Induction.

3. Disassembly and Reassembly

Screw

pull

3-6 Replacement of the Assy-Induction Module

Parts Explaination Photo Explaination

AssyInduction Module

Remove the sub wire of Power , Communication and Inverter.

Warning

Wire connecting position is very improtant.

Please keep attention.

Remove the 2 screws .

Lift up and pull the Assy_Inverter Module(L,R) toward left or right side.

3. Disassembly and Reassembly

3-7 Removing The Latch-Door & Switch-Door Plunger

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect power before servicing the range. Replace all panels before operating range. Failure to do so can result in death or electrical shock.

CAUTION

When you work on the electric range, be careful when handling the sheet metal parts. Sharp edges may be present, and you can cut yourself if you are not careful.

Parts Explaination Photo Explaination

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

2. Open the oven door.

3. Raise the cooktop (see page 14 for the

procedure).

4. To remove the Latch-Door:

a) Remove the 2 screws from the front of cavity.

Latch-Door & SwitchDoor Plunger

b) Remove two screw from Cover-Back Main

Guard and remove latch-door

5. To remove the Switch-Door Plunger

a) Remove the Cover-Back Guard Wire (see

page 12 for the procedure).

b) Release the Connector.

c) Remove the Switch-Door Plunger from the

range. take out carefully with shaking up and down by using tool.

3. Disassembly and Reassembly

3-8 Removing Heater-Broil

WARNING

Disconnect power before servicing the range. Replace all panels before operating range. Failure to do so can result in death or electrical shock.

CAUTION

When you work on the electric range, be careful when handling the sheet metal parts. Sharp edges may be present, and you can cut yourself if you are not careful.

Parts Explaination Photo Explaination

Broil

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

2. Open the oven door and remove the racks from inside the oven.

3. To remove the broil element.

a) Remove the Sensor-Thermistor and 5

screws from the front and rear brackets.

b) Remove Cover-Back Main Wire and

disconnect 2 wires from Heater-Broil and a wire from Sensor-Thermistor.

3. Disassembly and Reassembly

3-9 Removing Heater-Bake

Parts Explaination Photo Explaination

1. Unplug range or disconnect power.

2. Pull the range out of its mounting location so that

you can access the rear of the unit.

3. Remove Cover-Back Main Wire.

4. Remove Terminal-Block and Bracket-Cover Access.

(with Adiabatic-Terminal) by unscrew 2 points.

Heater-

Bake

5. Disconnect 2 wires of motor and warming drawer.

6. Remove the duct By unscrew 4 points.

7. remove a screw located bake heater both side.

3. Disassembly and Reassembly

3-9 Removing Heater-Bake

Parts Explaination Photo Explaination

7. Cut the Adiabatic-Rear based on the lower side.

Heater-

Bake

8. Carefully pull out Heater-Bake and replace it.

3. Disassembly and Reassembly

3-10RemovingConvectionElement,Fan-CovnectionandMotor-

Convection

Parts Explaination Photo Explaination

1. Disconnect power and remove oven racks.

2. Pull the range out of its mounting location so that you can

access the rear of the unit.

Braket- convection heater

3. Remove Cover-Back Main Wire from the unit.

(See step 3 on page 12 for procedure)

Convection

Element, Fan-

Convection ,

Motor-Convection

4. Remove oven door. (See Page 32 on page for procedure)

5. Power Cover-casing

6. Unscrew 2 screws and remove Bracket-Convection

Heater to remove Heater-Convection.

7. Unscrew nut of Fan-Convection Main(CW), and 2 FanConvection Planets(CCW).

8. Unscrew 9 points and disconnect a Motor-Convection wire and disconnect Heater-Convection wire.

CAUTION

Be careful not to bend the Fan-Convection(Blade)

+ 56 hidden pages