76
8/19/2019 MFL37554810(LDF7561)-EUS http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 1/76 DISHWASHER SERVICE MANUAL BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES. NOTE MODEL : LDF8574(WW,BB,ST) LDF8072(WW,BB,ST) LDF7561(WW,BB,ST) LDF7551(WW,BB,ST) LSDF9962(WW,BB,ST) LDS6040(WW,BB,ST) For Authorized Service Technician

MFL37554810(LDF7561)-EUS

Embed Size (px)

Citation preview

Page 1: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 1/76

DISHWASHER

SERVICE MANUAL

BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY

FOR SAFETY AND CORRECT SERVICES.

NOTE

MODEL : LDF8574(WW,BB,ST)

LDF8072(WW,BB,ST)

LDF7561(WW,BB,ST)

LDF7551(WW,BB,ST)

LSDF9962(WW,BB,ST)

LDS6040(WW,BB,ST)

For Authorized Service Technician

Page 2: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 2/76

Page 3: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 3/76

For Authorized Service Technician

- 3 -

1. CAUTION......................................................................................................................... 4

2. SPECIFICATIONS ........................................................................................................... 5

3. WIRING DIAGRAM........................................................................................................ 6

4. FEATURES & TECHNICAL EXPLANATION ................................................................... 10

5. PARTS NAME ................................................................................................................ 17

6. PROGRAM CHART ..................................................................................................... 18

7. HOW TO DISASSEMBLE ............................................................................................ 20

8. TROUBLE SHOOTING METHODS.............................................................................. 29

A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE...........29

B. STEAM GENERATOR ERROR MESSAGE............................................................ 31

C. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM .......................................... 51

9. INSTALLATION INSTRUCTION ................................................................................... 55

10. EXPLODED VIEW .......................................................................................................62

CONTENTS

Page 4: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 4/76

For Authorized Service Technician

- 4 -

 

DISCONNECT POWER CORD BEFORE SERVICING

RECONNECT ALL GROUNDING DEVICES

IMPORTANT SAFETY NOTICE !

This service information is intended for individuals

possessing adequate backgrounds of electrical,electronic and mechanical experience.

 Any attempt to repair this appliance may result inpersonal injury and property damage.The manufacturer or seller can not be responsiblefor the interpretation of this information, nor can itassume any liability in connection with its use.

CAUTION !

Page 5: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 5/76

For Authorized Service Technician

- 5 -

 

Rated Voltage / Frequency AC 120V/60Hz

Installation Built-In

Place Settings 14

Product Dimension(in) 23 3/4"x 24 5/8"x 33 1/2"

Product Weight(lbs) 114lbs

Door Color White, Black, Stainless

Tub Material Stainless Steel

Control Electronic

Rated Power(Watt) 1,350

Heater Power(Watt) 1,200

Programs 6 (LDS6040 : 7)

Upper Rack Position Adjustable

Lower Rack 100 % Fold down

Water Consumption 6.5 – 20.5 (Normal)

Power Consumption(kWh/year) 245 (Normal)

Operating Time (min) 110 – 130 (Normal)

Fan Dry System Yes

Delay Start Function Yes

Auto-Off Power Switch Yes

Process Monitor Yes

Wash Level 5

Racks Nylon Coating

Operating Water Pressure (Bar) 0.5-8 (140-830kPa)

ITEM SPECIFICATION

2. SPECIFICATION

Page 6: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 6/76

Page 7: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 7/76

For Authorized Service Technician

- 7 -

Main PCB Picture

( P/N : EBR63265301)

     B     L     4

     W     H     4

     B     L     6

     N     A     8

     R     D     6

     R     D     3

     Y     L     3

     X     1

     X     2

     X     3

Page 8: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 8/76

For Authorized Service Technician

- 8 -

(LDF7561,LDF7551,LDS6040 Series)

Page 9: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 9/76

For Authorized Service Technician

- 9 -

Main PCB Picture

( P/N : EBR63265303) Non steam

     B     L     4

     W     H     4

     B     L     6

     N     A     8

     R     D     6

     R     D     3

     Y     L     3

     X     1

     X     2

Page 10: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 10/76

For Authorized Service Technician

- 10 -

 

LARGE CAPACITY LG dishwashers allow you

to load very large items in

both the upper and lower

racks. The tall tub pro-

vides extra overall capaci-

ty and the clearance to ac-

commodate large dishes.

Extra large items (max. 14

in.) may be loaded in the

lower rack by raising the

upper rack.

SLIM DIRECT MOTOR™ 

 The new Slim Direct Mo-

tor™ is inverter-controlled.

Wash power is controlled

based on cycle selection.

-

ergy use.

HYBRID DRYING SYSTEM

dries dishes without the

use of a heating element

that would increase en-

ergy consumption.

STEAM WASHING (not available on all models) 

Steam technology pro-

vides better cleaning

performance than regu-

lar wash systems. Steam

is the most energy ef-

 

stemware.

VARIABLE SPRAY SYSTEM Because the water spray

alternates between the

upper and lower racks,

all of the power from the

motor is directed to one

rack at a time. This con-

centrates all the clean-

ing power of the motor

on each rack in turn.

BLUE LCD (not on all models) AND LIGHT

TOUCH BUTTONS 

 The light touch buttons

on the control panel

make selections easy

and convenient. The

blue LCD display clearly

displays the selected

cycle and options.

4. FEATURES & TECHNICAL EXPLANATION

4-1. Product Features

Page 11: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 11/76

For Authorized Service Technician

- 11 -

LDF8574 / LDF8072 / LSDF9962

CONTROL PANEL (steam models)

CyclesSelect your desired cycle.

STEAM POWER

 This cycle is for heavily and hard soiled dishes. Steam Powerdefaults to the highest spray intensity and uses the power ofsteam to wash heavily soiled dishes.

STEAM DUAL This cycle washes the upper and lower racks at different sprayintensities. The default setting for this cycle washes the low-er rack with strong spray intensity and the upper rack withsoft spray intensity. This provides optimum cleaning perfor-mance for mixed loads, including fine china and stemware. Ifother combinations are desired, use the steps listed below tochange the intensities or to use the HALF LOAD feature.

How To Use Steam Dual:

1. Select Steam Dual.

2. Press the Spray button to toggle between Soft, Mediumand Strong for the upper spray arm.

3. After making your selection for the upper spray arm, press

the Half Load button.4. Press the Spray button to toggle between Soft, Medium

and Strong for the lower spray arm.

5. Close the door to start the cycle.

STEAM DELICATE

 This cycle adds the gentle power of steam to boost the clean-ing power of the delicate cycle. The cycle is intended for ef-fectively cleaning delicate items such as fine china and stem-ware.

NORMAL

 This cycle is for normally soiled, everyday loads.

QUICK & DRY

 This is a shortened cycle that is intended for washing anddrying recently used dishes or lightly soiled loads. During thiscycle, both spray arms will run at the same time.

QUICK

 This is a shortened cycle that is intended to wash recentlyused or lightly soiled loads, without drying.

CHIME ON/OFF

 To enable or disable the chime, first , turn on the dishwasher.Press and hold the Quick and Steam Delicate buttons simul-taneously for approximately three seconds.

TO CANCEL A CYCLE

 To cancel a cycle, open the door and then press and hold theSteam Delicate and Normal buttons together for approxi-mately three seconds. The drain pump will activate and thecycle will cancel. The display will show “dr” and the dishwash-er will drain the water. After the dishwasher is drained, thepower will turn off.If power is turned on and no cycle has been selected, the

dishwasher will power off within four minutes.

Cycle Options(Refer to the control panel on the next page)

Press the desired cycle and then select the options for thatcycle.

EXTRA DRYSelect the EXTRA DRY option for better drying performance. This option adds 60 minutes of extra drying time to the cycle. The EXTRA DRY button will illuminate when the option hasbeen selected.

RINSERepeated pressing of the Rinse button will select the desired

Rinse option. The Sanitary, Extra Rinse, or Sanitary and ExtraRinse lights will show in the bottom left portion of the dis-play.

SANITARY ( ) 

 This high-temperature rinse sanitizes dishes and glassware inaccordance with NSF/ANSI Standard 184 for residential dish-washers. Certified dishwashers are not intended for licensedfood establishments.

EXTRA RINSE ( R+ )

 The Extra Rinse symbol indicates that an extra rinse has beenadded to the cycle. An extra rinse can help reduce hard waterspotting on dishes. To add an extra rinse, press the Rinse but-ton repeatedly until the Extra Rinse symbol appears in thedisplay.

RINSE ONLY (LDF****)

 This cycle is a quick rinse for dishes that will not be washedimmediately. This cycle will rinse dishes that have excess soilto soften dried on residue. Rinsing the dishes will help pre-vent odors in the dishwasher. No detergent should be used. To selec t the Rinse Only cycle, turn the dishwasher on, andpress the Rinse button once without pressing any other cyclebuttons.  The Rinse Only cycle is not available with any othercycles.

Steam Models (LDF8574, LDF8072, LSDF9962)

4-2. Display Panel

Page 12: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 12/76

For Authorized Service Technician

- 12 -

LDS6040/LDF7561/ LDF7551

CONTROL PANEL (non-steam models)

CyclesSelect your desired cycle.

POWER SCRUB

 This cycle is for heavily and hard soiled dishes.

DUAL WASH

 This cycle washes the upper and lower racks at different spray

intensities. The default setting for this cycle washes the low-er rack with strong spray intensity and the upper rack with

soft spray intensity. This provides optimum cleaning perfor-

mance for mixed loads, including fine china and stemware. If

other combinations are desired, use the steps listed below to

change the intensities or to use the HALF LOAD feature.

How To Use Dual Wash:

1. Select Dual Wash.

2. Press the Spray button to toggle between Soft, Medium

and Strong for the upper spray arm.

3. After making your selection for the upper spray arm, press

the Half Load button.

4. Press the Spray button to toggle between Soft, Medium

and Strong for the lower spray arm.

5. Close the door to start the cycle.

DELICATE

 The cycle is intended for effectively cleaning delicate items

such as fine china and stemware.

NORMAL

 This cycle is for normally soiled, everyday loads.

QUICK & DRY

 This is a shortened cycle that is intended for washing and

drying recently used dishes or lightly soiled loads. During this

cycle, both spray arms will run at the same time.

QUICK

 This is a shortened cycle that is intended to wash recently

used or lightly soiled loads, without drying.

RINSE ONLY (LDS6040)

 This cycle is a quick rinse for dishes that will not be washed

immediately. This cycle will rinse dishes that have excess soil

to soften dried on residue. Rinsing the dishes will help pre-

vent odors in the dishwasher. No detergent should be used.

CHIME ON/OFF

 To enable or disable the chime, first, turn on the dishwasher.

Press and hold the Quick and Delicate (LDS6040 : Spray and

Delay Start) buttons simultaneously for approximately three

seconds.

TO CANCEL A CYCLE

 To cancel a cycle, open the door and then press and hold the

Delicate and Normal (LDS6040 : Spray and Half Load) buttons

together for approximately three seconds. The drain pump

will activate and the cycle will cancel. The display will show

“dr” and the dishwasher will drain the water. After the dish-

washer is drained, the power will turn off.

If power is turned on and no cycle has been selected, the

dishwasher will power off within four minutes.

Display varies by model (LDF7561, LDF7551)

Display varies by model (LDS6040)

Page 13: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 13/76

For Authorized Service Technician

- 13 -

LDF8574/ LDF8072/LDF7561/LDF7551/LSDF9962

CONTROL PANEL

SPRAY (INTENSITY)First, select the desired cycle. Press the Spray button re-

peatedly until the desired spray intensity is selected.

 

HALF LOAD

For small loads, you may use just the upper or lower rack

to save energy. Each press of the Half Load button cycles

between upper rack only and lower rack only.

DELAY START The Delay Start feature allows you to delay the start of a se-

lected cycle. Each time the Delay Start button is pressed,

the delay time will increase an hour. The delay start time

can be set from 1 to 19 hours, in one-hour increments.

CHILD LOCK

 The Child Lock feature helps prevent your settings from be-

ing changed during a cycle. Selecting this feature locks all

of the buttons, except for the Power button, on the control

panel. This feature does not lock the door.

To activate the Child Lock:

1. Open the dishwasher door.

2. Press the Power button.

3. Select the cycle (and desired options).

4. Press and hold the Rinse and Spray buttons for three

seconds. The Child Lock indicator will illuminate in the

display once the Child Lock is activated.

5. Close the door to begin the cycle.

DIGITAL DISPLAY

 The Digital Display on the control panel shows the ESTI-

MATED cycle time. When the dishwasher is powered up,

the display will be blank. When the cycle and options are

selected, the display will show the total estimated time to

complete those selections. During operation, the display

shows the remaining estimated operating time.

•  The estimated time shown in the display does not in-

clude delay times for heating water, etc.• If Delay Wash is selected, the display shows the delay

time in hours.•  Time may vary depending on the soil level of your load.

 NOTE

ECO

 The ECO option saves energy by using less water. This op-

tion should only be used with light to medium soiled dishes.

 The RINSE AID symbol indicates that the rinse aid

needs to be refilled.

 NOTE

POWER• Press the Power button to turn on the control panel. If no

cycle is selected within four minutes, the dishwasher will

power off.

• After the cycle is complete, the power automatically turns

off for safety and economy purposes.

• If there is a power surge, power outage, or disruption of

any kind, the PF indicator will display and power will be au-

tomatically turned off for safety. The cycle will need to be

restarted.

SMART DIAGNOSIS

Should you experience any problems with your dishwasher,

it has the capability of transmitting data to your Smart Phone

using the LG Smart Laundry & DW Application or via you tele-phone to the LG call center.

 WARNINGSteam can cause burns. Use caution in the area of the steam noz-

zle, on the left side of the dishwasher, if the door is opened during

the steam portion of a cycle. Contact with the steam or the steam

nozzle can cause burns.

Display varies by model (LDF8574, LDF8072, LSDF9962)

Display varies by model (LDF7561, LDF7551)

Page 14: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 14/76

Page 15: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 15/76

For Authorized Service Technician

- 15 -

BUTTONThe number ofpushing button

TopDisplay LED lightingLoad

Load and Checking points Door open/ closed Remark

STEAM POWER+

STEAM DUAL+POWER

QUICK & DRY

QUICK 

EXTRA DRY

SPRAY

RINSE

HALF LOAD

DELAY START

1 TIME

1 TIME

1 TIME

1 TIME

1 TIME

1 TIME

1 TIME

N03/U00/D00

(Version)

11:11(1:11)

12:22(2:22)

13:33(3:33)

14:44(4:44)

15:55(5:55)

16:66(6:66)

17:77(7:77)

18:88(8:88)

19:99(9:99)

Either

All LEDs are lighting

All LEDs are lighting

All LEDs are lighting

All LEDs are lightingAll LEDs are lighting

All LEDs are lighting

All LEDs are lighting

STEAM POWER 1 TIME 10:00(0:00) All LEDs are lighting Either

STEAM DUAL 1 TIME All LEDs are lighting Either

STEAM DELICATE 1 TIME All LEDs are lighting Either

NORMAL 1 TIME All LEDs are lighting Either

Either

Either

Either

Either

Either

Either

1 TIMESteam Generator

Temp(℃)Steam Generator

ThermistorAll LEDs Closed

2 TIME N02 Fan Motor All LEDs Closed

3 TIME N03 Dispenser All LEDs Closed

4 TIME Soil Level Soil Sensor All LEDs Closed

5 TIME Water Level All LEDs Closed

6 TIME Sump Temp(℃)

Steam GeneratorWater Level

Sump Thermistor All LEDs Closed

7 TIME N07Steam Generator

Inlet ValveAll LEDs Closed

8 TIME Pump RPM Drain Pump All LEDs Either

9 TIME Frequency Inlet Valve All LEDs Closed

10 TIME Motor RPM Washing Pump All LEDs Closed

11 TIME Un Cr LO Vario Valve All LEDs Closed

12 TIME - Auto Off All LEDs ClosedNormal water Level : 170 ~ 260

Pure water : more than 130

H: High water level / L: Low water level

Steam Demo mode : STEAM DUAL+NORMAL+POWER

 

CHECK PROGRAM

LDF8574/LDF8072/LSDF9962

4-3. TEST MODE

Page 16: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 16/76

For Authorized Service Technician

- 16 -

LDF7561/LDF7551/LDS6040

ButtonThe number ofpushing button

Top DisplayLoad and Checking points Door open/ 

closedRemark

Load LED lighting

POWERSCRUB

+DUAL WASH+ POWER

1 TIMENo3/U01/D01

(Version)All LEDs are

lightingEither

LDF7561/ LDF7551

Series

HALF LOAD +DELAY START

+ POWER1 TIME

No3/U02/D01(Version)

All LEDs arelighting

EitherLDS6040

Series only

Delay Start

1 TIME N01 Fan Motor All LEDs Closed

2 TIME N02 Dispenser All LEDs Closed

3 TIME Soil Level Soil Sensor All LEDs Closed

4 TIMESump

Temp(℃)Sump

ThermistorAll LEDs Closed

5 TIME Pump RPM Drain Pump All LEDs Either

6 TIME Frequency Inlet Valve All LEDs Closed

7 TIME Motor RPM Washing Pump All LEDs Closed

8 TIME Un → Cr → LO Vario valve All LEDs Closed

9 TIME - Auto Off All LEDs Closed

① Normal water Level : 170 ~ 260

② Pure water : more than 130

CHECK PROGRAM

Page 17: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 17/76

For Authorized Service Technician

- 17 -

 

1

2

4

5

3

6

9

7

8

11

14

12

10

15

16

17

18

1913

1. CONTROL PANEL

2. DOOR HANDLE

3. FRONT COVER

4. LOWER COVER

5. LEVELING FEET

6.

7. BASE

8. TOP SPRAY ARM

9. UPPER SPRAY ARM

10. on steam models)

11. LOWER SPRAY ARM

12. DETERGENT AND RINSE AID DISPENSER

13. DRYING VENT COVER

14. some models)

15. UPPER RACK 

16. SILVERWARE BASKET

17. LOWER RACK 

18. TOP DISPLAY

19. POWER BUTTON

20. FILTRATION SYSTEM

SignaLight (front display)

When a cycle is running, the SignaLight will illuminate for the

active stage.

  Model with 4 LEDs : WASH – RINSE – DRY – CLEAN

Models with 2 LEDs : OPERATING - CLEAN

Models with 1 LED : OPERATING (Flickering) / CLEAN(Lighting)

Once the cycle is complete, the CLEAN light will illuminate for

four minutes.

 To keep the CLEAN light on until the door is open, turn the

power on, and then press and hold the EXTRA DRY and HALF

On appears in the display. The dishwasher will remember this

setting until manually changed.

Mesh filter 

Outer filter 

Upper STS

filter 

20

5. PARTS NAME

Page 18: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 18/76

Page 19: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 19/76

Page 20: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 20/76

For Authorized Service Technician

- 20 -

BEFORE DISASSEMBLING THE DISHWASHER ;1) Remove the cord from electric outlet to avoid electric shock.

2) Close the Water Tap (faucet).3) Remove all dishes and items in the dishwasher.4) Remove the Lower Rack and the Upper Rack.5) Remove the inlet hose and drain hose connetion to avoid the hose damages.6) Prepare some towels to avoid floor wet by the water left in the dishwasher.

 

7-1. FULL DISASSEMBLE

1. Lower Cover and Lower Felt

1) Remove the front 2 screws.

2) Remove the Inlet Hose and Power SupplyCable.

2. Tub Felt1) Tub Felt

Lower Cover

7. HOW TO DISASSEMBLE

Page 21: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 21/76

For Authorized Service Technician

- 21 -

 

Control Panel Front Cover

Controller

Controller

Latch Assembly

3. Door Assembly

1) Front Cover

Open the door.

Remove 2 screws at the bottom.

2) Control Panel Assembly

Remove 2 screws(Stainless).

Remove the wire connections.

Be sure the wiring should not bechanged in reassembling

Remove the Latch assembly.

Remove the Front Display.

Remove 8 screws for Controller.

Remove 12 screws(stainless).

(LDF**** Series)

Page 22: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 22/76

Page 23: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 23/76

For Authorized Service Technician

- 23 -

 

Fan Assembly

Inner CoverGasket

Flange

Hose

DetergentDispenser

Door Hinge

Air Duct

Door Bracket

3) Fan Assembly

Open the door.

Remove 4 screws and a earth screw for

Door Bracket.

Remove the wire connetions.

Remove the Air Duct.

Turn the Inner Cover counterclockwise.

4) Detergent Dispenser

Close the door

Remove the wire connections.

Remove 6 screws with brackets.

Push the Detergent slowly pulling up thethe Flange by Standard Screwdriver.

5) Door Spring (Right & Left)

Push the Spring upwards and take it offfrom the the slot.

Be careful not to be injured by thesharpedge of Tub.

Take off the Hinge Link from the Hinge.

6) Door Liner

Open the door.

Pull the Door Liner and take it off fromthe Hinge Supporter.

Door Liner Assembly

Hinge Supporter

Page 24: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 24/76

For Authorized Service Technician

- 24 - 

Lead Wire Holer Hook

Lead Wire Holer

Lower Frame

4. Lower Frame

1) Press the holder hook as shown in figure.

2) Remove 4 screws.

3) Hold the lower frame by one hand.

Push the base cabinet inside from other hand.Pull the lower frame out.

5. Tub Assembly

1) Rack

 Remove the top rack and the

upper / lower rack

.

2) Nozzle and Water Guide

 Pull up the nozzle.

 Remove the water guide form

the tub bracket. (Top & Rear)

Page 25: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 25/76

For Authorized Service Technician

- 25 -

- 17 -- 17 -

.

Be careful the rubber packing ofair guide assembly should not be lost.

Be careful not be injured or scratch floorby the sharp edge of tub.

 Remove the wire connections.

 Remove 2 hoses assembly. Rotate 2 holders between sump and tub.

 Lift up sump assembly.

 Remove the wire connections in the back

  of the sump assembly.

4) Air guide Nut

 Turn the air guide nut counterclockwise.

  (Special tool might be needed.)

5) Tub Sub Assembly

 Remove Side 4 screws.

 Remove rear 4 screws.

 Disconnect 1 hose assembly of left side.

  (Steam nozzle hose) Lift tub assembly upward.

3) Sump Assembly

Page 26: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 26/76

For Authorized Service Technician

- 26 - 

7) Holder Supporter, Tub Packing

and Hinge Supporter Assembly.

Rotate the screwdriver, after slide it into thegap between Stopper Roller and Rail Roller.

 Remove side 4 screws.

 Push the steam nozzle.

6) Steam Nozzle

Page 27: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 27/76

For Authorized Service Technician

- 27 -

 

8) Rear Leg Adjustment System

Remove 2 screws.

Pull the Holder.

Pull the Leg Adjust.

Pull the Shaft Assembly.

Holder

Leg Adjust

Shaft AssemblyShaft Assembly

7) Foot & Nut

Pull the Foot twisting

Pull the Nut pushing the hook.

Nut

Foot

Page 28: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 28/76

For Authorized Service Technician

- 28 -

7. Sump Assembly

1) Heater

Remove the wire connections. Pull the heater out of the sump after

releasing the nut.

2) Pressure Switch & Soil Sensor

Remove the wire connections.

Disconnect 1 hose assembly.

Remove 1 screw.

Pull up Pressure Switch and Soil Sensor.

3) Impeller & Washing Motor

Remove 4 screws & 1 hose assembly.

Lift up pump assembly.

Remove 6 screws.

Remove 1 screw under a motor.

Lift up 2 pump cases.

Remove 1 screw.

Lift up impeller.

Remove 1 screw under a motor.

Lift up pump cover.

- 21 -- 21 -

4) Vario Valve

Remove 6 screws on the nozzle holders.

Lift up nozzle holders.

Lift up Vario Valve.

5) Vario Motor & Vaio Cam

Remove 2 screws for Vario Motor.

Pull the Vario Motor/Cam and Micro switch.

Page 29: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 29/76

For Authorized Service Technician

- 29 -

A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE

ERROR MESSAGEPOSSIBLE CAUSE

REMEDYFOR ERROR OCCURRENCE

The Water Supply Tap is closed.

The Water Supply is shut off.

The Inlet Hose is kinked.

The Water Pressure is very low.

(below 10 psi)

Inlet Valve is OK?

The filter of Inlet Valve is clogged

by impure water.

The Hall sensor is OK?The Impeller of Air Guide is bound.

The Drain Hose kinked or blocked.

Wiring connection is OK?

The drain outlet of sump is

blocked.

The Drain Pump/Motor or circuit is

 No drainage though drain pump isworking properly? Air in the

impeller of the drain pump might

cause this case.

troubled.

Water leakage in Hose connections.

Water is leaked by damages.

The Motor Water Seal leakage of 

Sump assembly.

The height of Drain Hose connection

(sink-Drain Hose) is not over 20 .

Impeller of the Washing Pump is

worn away.

Remove the cause of kink or block.

Check the wiring connection.

Measure the electric resistance of 

Drain Motor. (20-40 )

Replace the Drain Motor or repair 

Remove all the water remained inthe drain hose that is connected to

the drain pump / motor.

Keep the unit upright, don't lay it

down.

Cautious about leaking on the floor.

the Circuit.

Replace the connections of Hose.

Check the point of damages and

repair or replace the related parts.

Read the Installation Instructions

(page 9) and fix it to the

recommended Height.

Replace the Impeller of the

Washing Pump.

Take action on Water Supply

device.

Measure the electric resistance of 

Inlet Valve. (23~27 )

Clean the filter of Inlet Valve.

Check the frequency of Inlet Water by the Test Mode.

Replace the Air Braker.

Not reached to the nor-mal water level in spiteof 10 min. water supply

INLET ERROR

displayed

Condition

Not fully drained out inspite of 5 min. drainoperation

The excessive RPM of Washing Motor happened during Washcycle due to water leakage.

DRAIN ERROR

displayed

Condition

LEAKAGE ERROR

displayed

Condition

 

or 

8. TROUBLE SHOOTING METHODS

Page 30: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 30/76

For Authorized Service Technician

- 30 -

ERROR MESSAGEPOSSIBLE CAUSE

REMEDY

FOR ERROR OCCURRENCE

The Inlet Valve is troubled.

The Controller is troubled.

The Inlet Water Temperature is

very high. (over 194 )

Wiring connection is OK?

The Thermistor is OK?

Wiring connection is OK?

The Impeller of Washing Pump is

locked.The rotor of Washing Motor islocked.

The Blade is locked.

Check the temperature. (Test Mode)

If the temperature is displayed,

adjust the Inlet Water Temperature to 120 .

If the temperature is not

displayed,

check the wiring connection.

check the electric resistance

of Thermistor.

(11~14k at 77 )

Replace the PCB.

Replace the Inlet Valve.

Repair or replace the Controller.

Excessive water is sup-plied than normal water level.(Automatically drainPump operated.)

EXCESS ERROR

displayed

Condition

The resistance of ther-mistor not normally out put.

THERMAL ERROR

displayed

Condition

Check the wiring connection.

Replace the cause of restriction.

Replace the Washing Motor.Replace the PCB.

The Motor is workingabnormally.

MOTOR ERROR

displayed

Condition

The Circuit of Heater is troubled.

The Thermistor is troubled.

The Heater is shorted.

The Relay Circuit is troubled.

Repair the Circuit of Heater.

Replace the Thermistor.

Replace the Heater.

Repair the Relay Circuit..

The water is not heated or 

the temperature in the Tubis overheated to over 194ßF

HEATER ERROR

displayed

Condition

Wiring connection is OK?Does the vario S/W assembledproperly?

Is the vario motor operatedproperly?(range is 12~15Ω)

Check the wiring connection.Reassemble vario S/W. 

Replace the vario motor.

.

The position of vario cam is

not properly.

VARIO ERROR

displayed

Condition

Page 31: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 31/76

For Authorized Service Technician

- 31 -

 

B. STEAM GENERATOR ERROR MESSAGE

The normal condition

The generator heater temperature

is high. (over 239 )

Not reached to the normal water

level.

The generator heater temperature

is low. (lower than 158 )

Check the water level sensor and

thermistor check.

.

Check the inlet valve and sensor

connection.

Check the heater and thermistor.

SE0

SE1

SE3

SE4

ERROR MESSAGE CONDITION REMEDY

Steam Generator Error mode is not displayed in normal condition and it can be confirmed

by following additional operation.

To confirm steam generator error, press the SPRAY and HALF LOAD buttons simultaneously.

When Steam Generator is out of order, dishwasher operates the selected cycle withoutsteam.

Page 32: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 32/76

For Authorized Service Technician

- 32 -

 Inlet Error 

Symptom Check Point

1. Inlet Error (IE) 1.Check Electric Wiring.2.Check Inlet valve clogged.3.Check Inlet valve’s Resistance.4.Check Flow meter’s Resistance.5. Voltage of the Inlet valve’s connector.6. Voltage of the Flow meter ’s connector.

Flow Meter Main PWBResistance

[kΩ]

Voltage[Vdc]

(1) ~ (2) NA8 1st  ~ NA8 2nd 7~13 12V

(2) ~ (3) NA8 2nd  ~ NA8 3th 7~13 12V

(3) ~ (1) NA8 3th  ~ NA8 1st 7~13 12V

Flow meter

NA8

(1) (2) (3)

Page 33: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 33/76

For Authorized Service Technician

- 33 -

 Inlet Error 

Inlet Valve Main PWBResistance

[Ω]

Voltage[Vdc]

Steam

(1) ~ (2)

BL6 1st  ~ BL6 3th 25 ± 5% 12

Sump(1) ~ (2)

BL6 2nd  ~ BL6 3th 25 ± 5% 12

Inlet Valve

BL6

Page 34: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 34/76

For Authorized Service Technician

- 34 -

8. TROUBLE SHOOTING METHODS

Inlet Error

Condition.Not reached to the normal water level

in spite of 10 min. water supply.

The water is supplied.Frequency is not increased

The water is notsupplied.

Is the water tap opened? Open the water tap.

Repair the inlet hose.

Install the pressure pump.

a) Close the water tap.b) Unscrew the inlet hose.  (Inlet valve side)c) Clean the lter of inlet valve.

Is the inlet hose kinked?

Is the water pressurevery low? (below 0.5kgf/㎠)

Is the lter of inlet valveclogged by impure water?

Does the water supplied?Check the frequency of Inlet Water bythe Test Mode.

Is the connector connected to

main PCB assembly disconnectedor disassembled? (NA8)

Is the voltage between connectorsout of range? (NA8 pin1 ~ pin2)

 - After remove terminal positionassurance (TPA) of connector,check the voltage when water is injected.(The voltage is 12V DC (±15%)

Is the resistance vales betweenconnectors out of range?(range is over 7~13kΩ)(White 8P, Pin1~Pin2)

Reconnect orrepair the connector.

Replace the mainPCB assembly

Is the Inlet Valve connector operateproperly?

Replace the inlet valve

Inlet Valve 25±5% (Ω)

 Yes

 Yes

 Yes

 Yes

 Yes

 Yes

No

No

No

No

No

No

No

Is displayed?

 Yes

Blue 6P 1-2 is 12V

Page 35: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 35/76

For Authorized Service Technician

- 35 -

Drain Error 

Symptom Check Point

1. Drain Error (OE) 1.Check Electric Wiring.2.Check Drain motor’s Resistance.3.Check Drain hose / Filter clogged.4. Voltage of the Drain motor ’s connector.  -. Drain motor running : 12V DC

DrainMotor

Main PWBResistance

[Ω]

(1) ~ (2) YL3 3th

  ~ YL3 2nd

4 ~ 5

(2) ~ (3) YL3 2nd  ~ YL3 1st 4 ~ 5

(3) ~ (1) YL3 1st  ~ YL3 3th 4 ~ 5

Drain Motor

YL3

Page 36: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 36/76

For Authorized Service Technician

- 36 -

Drain Error

Condition.

Not fully drained out in spite of 5 min.

drain operation. Yes

 Yes Yes

 Yes

 Yes

 Yes

 Yes

 Yes

No

No

No

No

No

Motor rpm is not increased.Motor rpm isincreased.

Does the drain motor operate?Check the rpm of drain motor by thetest Mode.

Is the connector connected tomain PCB assembly disconnectedor disassembled? (YL3)

Is the voltage between connectorsout of range? (YL3 pin1~pin2~pin3) - After remove terminal positionassurance (TPA) of connector,check the voltage when water isdrained. (The voltage is over 12V DC)

Is the resistance vales betweenconnectors out of range?(range is 4~5Ω)(Yellow 3P, pin1~pin2~pin3)

Is the connector connected to

drain motor disconnectedor disassembled?

Reconnect orrepair the connector.

Replace the mainPCB assembly.

Replace the drainmotor

Reconnect orrepair the connector.

Is the lter clogged? Clean the lter

Remove the cause of kinkor block.

Remove the cause of kinkor block.

Is the outer drain hosekinked or blocked or frozen?

Is the inner drain hoseand drain casekinked or blocked or frozen?

Is displayed?

Page 37: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 37/76

For Authorized Service Technician

- 37 -

Leakage Error

Condition.

The water level in Tub goes down

during operation or standby mode. Yes

 Yes Yes

Water is not oodedin the base.

Is the oat assembled properly? Replace orrepair the oat.

Tilt the machine and drainwater in the base.

And nd the cause ofleakage.

Remove the cause of leakage.

Is the water oodedin the base?

How to check.Disassembly the lower cover.

Water is oodedin the base.

Is ordisplayed?

Page 38: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 38/76

For Authorized Service Technician

- 38 -

Thermal Error 

Symptom Check Point

1. Thermal Error (tE) 1.Check Electric Wiring.2.Check Thermistor’s Resistance.3.Check connection between main PWB & heater assembly.

Thermistor Main PWBResistance

[kΩ]

(2) ~ (1) RD6 2nd ~ RD6 3th 12 ~ 13

 Thermistor

RD6

(1)(2)

Page 39: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 39/76

For Authorized Service Technician

- 39 -

Thermal Error

Condition.

The resistance of thermistor not

normally out put. Yes

 Yes Yes

 Yes

 YesNo

No

No

Is the connectorconnected to main PCBassembly disconnected ordisassembled? (RD6)

Is the connectorconnected to heaterassembly disconnected ordisassembled?

Is the thermistor operatedproperly?(range is 12~13kΩ)Is the resistor between

connectors out of range?(RD6 pin2 ~ pin3)- After remove theconnector from the PCB,check the resistor.(range is 12~13kΩ)

Reconnector repair theconnector.

Reconnector repair theconnector.

Replace thethermistor.Replace the

main PCBassembly.

Is displayed?

Page 40: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 40/76

For Authorized Service Technician

- 40 -

Heater Error 

Symptom Check Point

1. Heater Error (HE) 1.Check Electric Wiring.

2.Check Heater’s Resistance.3. Voltage of the Heater’s connector.  -. Heater working : 120Vac ± 15%  -. Heater stop : 0~1Vac

Heater

X1 X2

Heater Main PWBResistance

[Ω]

Voltage[Vac]

(1) ~ (2) X1 4th

  ~ X2 4th

11~12.5

Working : 120±15%

Stop : 0~1

Page 41: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 41/76

Page 42: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 42/76

For Authorized Service Technician

- 42 -

 Yes

 Yes

NoDoes the PCB assemblyworking properly?When door is closed, checkthe resistor between X1 4pinand X2 4pin.-. Heater working  : 120VAC 15%-. Heater stop : 0~1V

Is the pressure S/Woperating properly?

Replace the pressure S/W.

Replace the PCBassembly

Page 43: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 43/76

For Authorized Service Technician

- 43 -

Lock motor Error 

Symptom Check Point

1. Lock motor Error (LE) 1.Check Electric Wiring.2.Check Wash motor’s Resistance.3. Voltage of the Hall sensor’s connector.  -. When power on : 8~ 15V

Wash motor

WashMotor

Main PWBResistance

[Ω]

(8) ~ (7) RD4 1st  ~ RD4 2nd 5 ~ 20

(7) ~ (6) RD4 2nd  ~ RD4 3th 5 ~ 20

(6) ~ (8) RD4 3th  ~ RD4 1st 5 ~ 20

Wash

MotorMain PWB Result

(2) ~ (3) WH4 1st  ~ WH4 4th 8 ~ 15 Vdc(Voltage Input)

(5) ~ (3) WH4 3th  ~ WH4 4th 8 ~ 15 Vdc(Pulsing Signal)

(4) ~ (3) WH4 2nd  ~ WH4 4th 8 ~ 15 Vdc

(Pulsing Signal)

(8) (7) (6)

(1)

(2)

(3)

(4)

RD3 WH4

Page 44: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 44/76

For Authorized Service Technician

- 44 -

Locked motor Error

Condition.

The revolution of washing motor is

not increased.

 Yes

 Yes

 Yes

 Yes

 Yes

 Yes

No

No

No No

No

Check the connectors below.Is the connector disconnected ordisassembled?

Is the resistance valuesin the range of 15 to 20Ω?※ 1-2, 2-3, 3-1 pin( After pull out the RD3 connector,check the terminal of the connectorin wire. (Red 3P, male)

Is the voltage between connectorsout of range?

(WH4 pin1 ~ WH4 pin4)- After remove terminalposition assurance (TPA)of connector, check the voltage,when just poweron. (The voltage is 8~15V)

Is the motor blocked?

Remove thecause ofblock orreplace themotor.

Replace themain PCBassembly.

Check orreplace themotor.

Replace the motor.

Reconnector repair theconnector.

Replace themain PCBassembly.

Is the resistance valesshort? (0~50Ω)(After pull out the RD3connector, check thehousing connector(Pin1~Pin2, Pin2~Pin3,Pin3~Pin1) individually.

Main PCB assembly : RD3

Main PCB assembly : WH4

Is displayed?

Page 45: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 45/76

For Authorized Service Technician

- 45 -

Nozzle(Vario) Error 

Symptom Check Point

1. Nozzle(Vario) Error (nE) 1.Check Electric Wiring.

2.Check Vario motor’s Resistance.3. Voltage of the Vario motor’s connector.  -. Vario motor working : 120Vac ± 15%  -. Vario motor stop : 0 ~ 1Vac

Vario motor Vario S/W

(1)

(2)

BL4NA8

VarioMotor

Main PWBResistance

[kΩ]

Voltage[Vac]

(1) ~ (2) BL4 1st ~ BL4 4th 12 ~ 15Working : 120±15%Stop : 0~1

Page 46: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 46/76

For Authorized Service Technician

- 46 -

Nozzle(Vario) Error

Condition.

The position of vario cam is not

properly.

 Yes

 Yes

 Yes

 Yes

 Yes

No

No

Check the connectors below.Is the connectordisconnected or disassembled?(BL4 : vario motor,NA8 : Vario S/W sensing)

Does the vario S/W assembled properly?

Is the vario motor operated properly?(range is 12~15kΩ)

Reassemblevario S/W.

Replace thevario motor.

Reconnector repair theconnector.

Does the PCB assembly workingproperly?When Door is closed,check the voltage betweenBL4 pin1 and BL4 pin4.-. Vario motor stop working  : 120VAC-. Vario motor stop stop : 0~1V

Is displayed?

Page 47: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 47/76

Page 48: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 48/76

Page 49: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 49/76

For Authorized Service Technician

- 49 -

Washing result is not satisfactory.

 Yes

 Yes

 Yes

 Yes

 Yes

No

No

No

No

After washing, is thereany white depositson the dishes or inner tub?

After washing, is thereany streaks on the dishesor inner tub?

After washing, is theresmall particles (food) on thedishes of inner tub?

Is the washing result ofcups & glasses notsatisfactory? (Upper basket)

Is the washing result ofutensils not satisfactory?(Top basket)

Does the salt rell lamp blink?(Rell salt.)

Reduce the amount of Rinse aid.

a) Wash lter assembly.

b) Check the rotation of spray arms.

  (lower, upper, top nozzle)

a) Does the upper nozzle t properly

  to the water guide?

  → Reassemble or replace

the upper nozzle or water guide

b) Does the water guide t properly

  to the sump?

  → Reassemble or replace

  the water guide.

a) Does the top nozzle t properly

  to the water guide?

  → Reassemble or replace

the top nozzle or water guide

b) Does the water guide t properly

  to the sump?

  → Reassemble or replace

  the water guide.

Page 50: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 50/76

For Authorized Service Technician

- 50 -

Drying result is not satisfactory.

 Yes

 Yes

 Yes

 Yes

No

No

No

After washing, is there

any streaks on the dishes

or inner tub?

Reduce the amount of Rinse aid.

Increase the amount of Rinse aid.

a) Does the upper nozzle t properly

  to the water guide?

  → Reassemble or replace

the upper nozzle or water guide

b) Does the water guide t properly

  to the sump?

  → Reassemble or replace

  the water guide.

a) Does the top nozzle t properly

  to the water guide?

  → Reassemble or replacethe top nozzle or water guide

b) Does the water guide t properly

  to the sump?

  → Reassemble or replace

  the water guide.

After washing, is there

water drops on the dishes

or inner tub?

Is the drying result of

cups & glasses not

satisfactory? (Upper basket)

Is the drying result of

utensils not satisfactory?

(Top basket)

Page 51: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 51/76

For Authorized Service Technician

- 51 -

 

No Power on when the power button pressed.

The Power connectionis correctly connected.

The Fuse orCircuit Breaker

of house is O.K?

The Power Switch or

the Circuit is O.K?

• Re-connect the Powr connection.

• Check the electricity is failed or not.

• Replace the Fuse or Circuit Breaker of house.

• Check the Power Switch or the circuit and repair it.

C heck t he C on t r o l l e r . (P ow er C i r cu i t )

C. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM

NO

NO

YES

YES

YES

NO

Page 52: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 52/76

For Authorized Service Technician

- 52 -

 

The Wash Pump/Motor does not run.

The Door is tightlyclosed?

The Wiring connectionsis OK?

The Blade is not locked

by a small and sharpobject?

• close the Door tightly.

• Check the Door Switch in Latch Handle.

• Re-connect the wiring connections related to the

Washing Motor.

• Remove the cause of lock or replace the Blade.

Replace the Wahing Pump/Motor

NO

NO

NO

YES

YES

YES

Page 53: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 53/76

For Authorized Service Technician

- 53 -

Washing Results are not Satisfactory

After washing, are there still

White deposits or streaks on

the dishes?

NO

After washing, are there still

food soils on the dishes?

YES

Check that : - the amount of detergent Correctly used or not

- Filters clogged or not.

- the holes of spray arms blocked or not.

- Utensils are correctly arranged or not.

- Utensils are overloaded or not.

- the spray arm rotating is obstructed or not.- the program is correctly selected or not.

Reduce the amount of Rinse-Aid

(for Streak)

YES

Dry Results are not satisfactory

Increase the amount of Rinse-Aid.(Set the number higher)

Select the Program that the Rinse temperature is higher.

Page 54: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 54/76

For Authorized Service Technician

- 54 -

Power Button not automatically off after operation.

Check the button is blocked by foreign materials.

Check the Power Switch.(Replace it, if necessary.)

Check the Controller.(Replace it, if necessary.)

Page 55: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 55/76

For Authorized Service Technician

- 55 -

 

Step 1: PREPARE CUPBOARD OPENING

1. This dishwasher is designed to fit a standard dishwasher opening as shown below.

2. Select a location as close to sink as possible for easy connections to water and drain lines.

3. The dishwasher should not be installed more than 10 ft. (3m) from the sink for properdrainage.

4. If dishwasher is to be installed in a corner, a minimum of 2 in. (50mm) is required between

the dishwasher and an adjacent a wall.

Ensure the floor under the dishwasher is at the same level as the rest of the room to

allow for any service requirements.

If dishwasher will sit directly on

subflooring, subfloor should be

sealed with a waterproof paint or

sealer to prevent damage from

steam.

Drill a 1-1/2 (38mm) dia hole or cut

out for drain hose, inlet hose and

electrical cables on either side.

approx. 4 (100mm, W) X 4 (100mm, H)

These openings must be within 4

(100mm) from the floor and 1-5/8

(40mm) from the back wall. If there is

a floor in the cabinet under the sink,

it will also be necessary to drill or cut

through the floor to connect the

water and drain under the sink.

9. INSTALLATION INSTRUCTION

Page 56: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 56/76

For Authorized Service Technician

- 56 -

Figure A

Step 2: PREPARE THE ELECTRICAL WIRING

1. This appliance must be operated with correct voltage as shown in this manual and on therating plate, and connected to an individual, properly grounded branch circuit, protectedby time delay fuse. Wiring must be 3 wires including ground.

2. The wiring or cord should be in an accessible location adjacent to, and not behind thedishwasher and within 4 ft. (1.2m) of the dishwasher side.

3. The wiring or cord must be grounded properly, if in doubt, have it checked by a qualifiedelectrician. No other appliance shall be connected to the same outlet by a double adapteror similar plug.

4. The wiring or cord must be oriented as shown in Figure A below.

5. Check the dishwasher for any damage before trying to install it.

6. Make sure water line and Electrical line are oriented in the bottom channels as shown inthe figure below.If you find any damage to the dishwasher, Please contact your dealer or builderimmediately.

WARNINGFor personal safety, remove house fuse or open circuit breaker before installation.

Do not use an extension cord or adapter plug with this dishwasher.Electrical and grounding connections must comply with the national electricalcode/provincial and municipal code and/or other local codes.

Page 57: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 57/76

Page 58: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 58/76

For Authorized Service Technician

- 58 - 

1. Remove the Lower Cover and orient dishwasher as shown below.

2. Before sliding the dishwasher into the cupboard opening, make all necessary height

adjustments using the legs.

3. Slide the dishwasher into the cabinet opening carefully. Make sure that the drain hoseinside the cabinet is not kinked.

4. Follow the instruction as in Figure B.

Step 5: INSTALL THE DISHWASHER IN CUPBOARD

Page 59: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 59/76

For Authorized Service Technician

- 59 -

Step 6: DRAIN LINE CONNECTION

1. If the end of the drain hose does not fit to the drain line, use an adapter (not supplied) thatmust be resistant to heat and detergent and may be obtained from a plumbing shop.

2. There are 2 typical connections as shown in Figures C & D.

There may be other options than shown here for connection the drain hose. The drainconnection must meet local plumbing regulations.

The S trap spigot must be drilled out cleanly and free of obstruction to its maximuminternal diameter, if used for drainage.

To prevent syphoning, one of the following instruction methods must be followed:

Follow local codes and ordinances.

Do not exceed 10 ft. (3m) distanceto drain.

Do not connect drain lines from

other devices to the dishwasherdrain hose.

Drain Requirements

Figure C: Connection to Disposer or waste Tee.

Figure D: Connection to Air Gap.

Page 60: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 60/76

For Authorized Service Technician

- 60 -

Step 7: WATER SUPPLY CONNECTION

1. When connecting, sealing tape orsealing compound should beused to avoid water leaks.

2. Before connecting, turn off the watersupply.

3. After fitting the Elbow into theInlet Valve, slide the FlexibleStainless Tube or Copper Tubeinto the Elbow.

4. Tighten the nut and make surethat the line is not kinked orsharply bent.

Inlet Valve

Water Supply Tube

Elbow

1. Before beginning, turn off electricalpower to the unit at the circuit breaker.

2. Remove the Junction Cover and thenInstall the Strain Relief.

3. Twist Wire Connectors tightly on thewires. Wrap each connection withElectrical tape.

4. Check again and make sure that allwires are connected correctly, black toblack, white to white, green to green(ground to ground).

5. Replace the Junction Cover.

Junction Box

Junction Cover

Step 8: ELECTRICAL POWER CONNECTION

Page 61: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 61/76

For Authorized Service Technician

- 61 -

Step 9: FINAL CHECKS

1. Turn electrical power back on at the circuit breaker.

2. Turn house water supply back on.

3. Operate the dishwasher through one cycle (Quick cycle is recommended) to check forwater leaks and operating conditions.

4. Replace the Lower Cover.

Page 62: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 62/76

Page 63: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 63/76

Page 64: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 64/76

For Authorized Service Technician

- 64 -

LDS6040 / LDF7561

 

 A130

 ACCESSORIE S

E005

M050

M051   M053

 A040

F001

E005

E010F101

 A003

M054M052

EXPLODED VIEW

Page 65: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 65/76

For Authorized Service Technician

- 65 - 

A130

ACCESSORIE S

E005

M050

M051   M053

A040

F001

E005

E010F101

M054M052

LDF7551

EXPLODED VIEW

Page 66: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 66/76

For Authorized Service Technician

- 66 -

 

F011

F013

M006

F011

F013

F040F060

F050

F022

F041

F230

F300

F144

F132

F143

F171

F110

F113

F112

F113

F210

F111

F117

F111

F118

F117

M070

M071

F215

F117

F105

F117

F137

F138F166

F165

LDF8574  / LDF8072  /  LSDF9962

EXPLODED VIEW - TUB ASSEMBLY

Page 67: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 67/76

Page 68: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 68/76

For Authorized Service Technician

- 68 -

 

F011

F013

M006

F011

F013

F040

F060

F050

F022

F041

F144

F132

F143

F171

M070

M071

F215

F117

F105

F117

F137

F138F166

F165

LDF7551

EXPLODED VIEW - TUB ASSEMBLY

Page 69: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 69/76

For Authorized Service Technician

- 69 -

M260

F149

 A160

M090

M500

F046

F047

M210

M266M105

M100

F148

EXPLODED VIEW - BASE ASSEMBLY

LDF8574  / LDF8072  /  LSDF9962

Page 70: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 70/76

For Authorized Service Technician

- 70 -

M260

F149

 A160

M090

M210

M266M105

M100

F148

EXPLODED VIEW - BASE ASSEMBLY

 

LDS6040  /  LDF7561  / LDF7551

Page 71: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 71/76

For Authorized Service Technician

- 71 -

A165

A159

A080

A155

A156

A151

A157

A158

A145

A141 A147 A146 A142

A101

A102

A103

A150

A110

A140

A070

A060

F191

F192

F004

F005

A050

 

EXPLODED VIEW - RACK ASSEMBLY

Page 72: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 72/76

For Authorized Service Technician

- 72 -

 

A170

A171

A172

A152

LDF8574  / LDF8072  /  LDF7561  /  LSDF9962  /  LDS6040

EXPLODED VIEW - CUTLERY RACK ASSEMBLY

Page 73: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 73/76

For Authorized Service Technician

- 73 -

 

K260

K207

K215

K251

K254

K280

K270

K030

K010

K005

K230

K002

K001

K122K110   K121

K101

F174

F142

F141

K124

K140

K100

K141

K280

EXPLODED VIEW - PANEL / DOOR ASSEMBLY

LDF8574  / LDF8072  /  LDF7561  /  LDF7551 / LSDF9962

Page 74: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 74/76

For Authorized Service Technician

- 74 -

K002

K001

K122K110   K121

K101

F174

F142

F141

K124

K140

K100

K141K

EXPLODED VIEW - PANEL / DOOR ASSEMBLY

LDS6040

K030

K217

K200   K212   K006   K262

K252

K280

K251

K260

K254

Page 75: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 75/76

For Authorized Service Technician

- 75 -

M130

M060

M081

M071

M074

M120

M025

M087

M031

M028

M026

M088

M027

M072   M070

M006

M125

M126

M075

M091

M089

M030

M131

M134

M133

M132

EXPLODED VIEW - SUMP ASSEMBLY

 A120

Page 76: MFL37554810(LDF7561)-EUS

8/19/2019 MFL37554810(LDF7561)-EUS

http://slidepdf.com/reader/full/mfl37554810ldf7561-eus 76/76

For Authorized Service Technician

P/No. : MFL37554810