DISHWASHER SERVICE MANUAL NOTE BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES.
For Authorized Service Technician 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
CONTENTS CONTENTS 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
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For Authorized Service Technician
CAUTION ! 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 in personal injury and property damage. The manufacturer or seller can not be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
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For Authorized Service Technician
2. SPECIFICATION 2. SPECIFICATION SPECIFICATION
ITEM 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" 114lbs
Product Weight(lbs) Door Color
White, Black, Stainless
Tub Material
Stainless Steel Electronic
Control Rated Power(Watt)
1,350
Heater Power(Watt)
1,200 6 (LDS6040 : 7)
Programs Upper Rack Position
Adjustable
Lower Rack
100 % Fold down 6.5 – 20.5 (Normal)
Water Consumption 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)
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WH
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-
V
U
Wash Motor
2
YL
1
SB
RD
4
3
2
1
4
3
2
1
2
1
4
5
7
Vcc
6
RD
2
1
1
4
4
2
2
2 3
3
2
4
4
BL6
2
1
2
Inlet V/V (Sump)
1
2
6
6
GY
3
3
Dispen - ser
1
5
5
YL4
2
1
RD BL YL/ GN
1
RD OR BL YL
1
1
BL
Inlet V/V (Steam)
3
3
WH4
BL4
RD
2
VT GY BK
RD
RD
GY
1
Vario Motor
W Ha Hb
3
BL
GY
Fan Motor
Steam Water Level (Low)
4
4
VT
U
1
1 3
3
BLDC Drain Motor
W V
U
3
WH
2
BL
SB
3
3
1
2
2
1
1
BN
NC
Door S/W (2/2)
COM
NO
Main PCB
SB
YL3
V W RD3
2
2
WH BL
Steam Water Level 1 (High)
BN
NO
2
3
3 2 1
VT BL
Flow Meter
2
2
1
1
4
6
6
2
1
BK WH
5
5
BK
Fuse
7
7
BK
8
8
BK
BK
2
1
1
L BK
RD
BK
RD
3
2
X1
X2
X3
5
5
2
1
NO
NO
6
6
COM COM
NO
COM COM
NO
3 Turbidity Sensor
1
NO COM COM
NO
WH BK GY
4
4
RD6 3
BK
BL
Thermistor (Sump)
2
N BN
RD
Vairo S/W Rinse Refill
Float S/W
3 2 1
2
1
YL
YL BL
BN SB YL
Pressure SW
Pressure SW
Thermistor (Steam)
BL
3
4
NA8 3
COM
WH
RD RD
1
NC
Door S/W (1/2) Sump Heater
RD
BK
BN YL
WH
BN
BL
YL
RD
3. WIRING DIAGRAM
GND
Steam Heater
RD
For Authorized Service Technician
(LDF8574,LDF8072,LSDF9962 Series)
For Authorized Service Technician
Main PCB Picture
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X3
RD3 X2
X1
RD6
NA8
BL6
WH4
YL3
BL4
( P/N : EBR63265301)
For Authorized Service Technician
(LDF7561,LDF7551,LDS6040 Series)
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For Authorized Service Technician
Main PCB Picture
RD3 X2
X1
RD6
NA8
BL6
WH4
YL3
BL4
( P/N : EBR63265303) Non steam
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For Authorized Service Technician
4. FEATURES & TECHNICAL EXPLANATION
4. FEATURES & TECHNICAL EXPLANATION
4-1. Product Features
4-1. Product Features
LARGE CAPACITY
STEAM WASHING (not available on all models)
LG dishwashers allow you to load very large items in both the upper and lower racks. The tall tub provides extra overall capacity and the clearance to accommodate large dishes. Extra large items (max. 14 in.) may be loaded in the lower rack by raising the upper rack.
Steam technology provides better cleaning performance than regular 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 concentrates all the cleaning power of the motor on each rack in turn.
SLIM DIRECT MOTOR™ The new Slim Direct Motor™ is inverter-controlled. Wash power is controlled based on cycle selection. ergy use.
HYBRID DRYING SYSTEM BLUE LCD (not on all models) AND LIGHT TOUCH BUTTONS
dries dishes without the use of a heating element that would increase energy consumption.
The light touch buttons on the control panel make selections easy and convenient. The blue LCD display clearly displays the selected cycle and options.
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For Authorized Service Technician
LDF8574 / LDF8072 / LSDF9962 4-2. Display Panel
CONTROL PANEL (steam models)
Steam Models (LDF8574, LDF8072, LSDF9962)
Cycles
TO CANCEL A CYCLE To cancel a cycle, open the door and then press and hold the Steam Delicate and Normal 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 dishwasher 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.
Select your desired cycle.
STEAM POWER This cycle is for heavily and hard soiled dishes. Steam Power defaults to the highest spray intensity and uses the power of steam to wash heavily soiled dishes.
STEAM DUAL This cycle washes the upper and lower racks at different spray intensities. The default setting for this cycle washes the lower rack with strong spray intensity and the upper rack with soft spray intensity. This provides optimum cleaning performance 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.
Cycle Options
(Refer to the control panel on the next page) Press the desired cycle and then select the options for that cycle.
EXTRA DRY
Select 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 has been selected.
How To Use Steam Dual: 1. Select Steam Dual. 2. Press the Spray button to toggle between Soft, Medium and Strong for the upper spray arm.
RINSE
Repeated pressing of the Rinse button will select the desired Rinse option. The Sanitary, Extra Rinse, or Sanitary and Extra Rinse lights will show in the bottom left portion of the display.
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.
SANITARY (
5. Close the door to start the cycle.
STEAM DELICATE This cycle adds the gentle power of steam to boost the cleaning power of the delicate cycle. The cycle is intended for effectively cleaning delicate items such as fine china and stemware.
EXTRA RINSE ( R+ ) The Extra Rinse symbol indicates that an extra rinse has been added to the cycle. An extra rinse can help reduce hard water spotting on dishes. To add an extra rinse, press the Rinse button repeatedly until the Extra Rinse symbol appears in the display.
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.
RINSE ONLY (LDF****) 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 prevent odors in the dishwasher. No detergent should be used. To select the Rinse Only cycle, turn the dishwasher on, and press the Rinse button once without pressing any other cycle buttons. The Rinse Only cycle is not available with any other cycles.
QUICK This is a shortened cycle that is intended to wash recently used 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 simultaneously for approximately three seconds.
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This high-temperature rinse sanitizes dishes and glassware in accordance with NSF/ANSI Standard 184 for residential dishwashers. Certified dishwashers are not intended for licensed food establishments.
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For Authorized Service Technician
LDS6040/LDF7561/ LDF7551 CONTROL PANEL (non-steam models)
Display varies by model (LDF7561, LDF7551)
Display varies by model (LDS6040)
Cycles
NORMAL This cycle is for normally soiled, everyday loads.
Select your desired cycle.
QUICK & DRY
POWER SCRUB
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.
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 lower rack with strong spray intensity and the upper rack with soft spray intensity. This provides optimum cleaning performance 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.
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 prevent odors in the dishwasher. No detergent should be used.
How To Use Dual Wash: 1. Select Dual Wash.
CHIME ON/OFF
2. Press the Spray button to toggle between Soft, Medium and Strong for the upper spray arm.
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.
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.
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 dishwasher is drained, the power will turn off.
5. Close the door to start the cycle.
DELICATE The cycle is intended for effectively cleaning delicate items such as fine china and stemware.
If power is turned on and no cycle has been selected, the dishwasher will power off within four minutes.
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For Authorized Service Technician
LDF8574/ LDF8072/LDF7561/LDF7551/LSDF9962 CONTROL PANEL
Display varies by model (LDF8574, LDF8072, LSDF9962)
Display varies by model (LDF7561, LDF7551)
NOTE
SPRAY (INTENSITY)
First, select the desired cycle. Press the Spray button repeatedly until the desired spray intensity is selected.
t The estimated time shown in the display does not include delay times for heating water, etc. t If Delay Wash is selected, the display shows the delay time in hours. t Time may vary depending on the soil level of your load.
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.
ECO The ECO option saves energy by using less water. This option should only be used with light to medium soiled dishes.
DELAY START
NOTE
The Delay Start feature allows you to delay the start of a selected 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.
The RINSE AID symbol needs to be refilled.
CHILD LOCK
POWER
The Child Lock feature helps prevent your settings from being 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.
t Press the Power button to turn on the control panel. If no cycle is selected within four minutes, the dishwasher will power off. t After the cycle is complete, the power automatically turns off for safety and economy purposes. t If there is a power surge, power outage, or disruption of any kind, the PF indicator will display and power will be automatically turned off for safety. The cycle will need to be restarted.
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.
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 telephone to the LG call center.
5. Close the door to begin the cycle.
DIGITAL DISPLAY The Digital Display on the control panel shows the ESTIMATED 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.
indicates that the rinse aid
WARNING
Steam can cause burns. Use caution in the area of the steam nozzle, 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.
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For Authorized Service Technician
LDS6040 CONTROL PANEL
Display varies by model (LDS6040)
Cycle Options
SPRAY (INTENSITY)
First, select the desired cycle. Press the Spray button repeatedly until the desired spray intensity is selected.
(Refer to the control panel on the next page) Press the desired cycle and then select the options for that cycle.
Soft (
), Strong (
)
HALF LOAD
EXTRA DRY
Select the EXTRA DRY option for better drying performance. This option adds 60 minutes of extra drying time to the cycle. Press and hold the Rinse and Spray buttons for three seconds. The EXTRA DRY button will illuminate when the option has been selected.
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 selected 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.
RINSE
Repeated pressing of the Rinse button will select the desired Rinse option. The Sanitary, Extra Rinse, or Sanitary and Extra Rinse lights will show in the bottom left portion of the display.
SANITARY (
), Medium (
CHILD LOCK The Child Lock feature helps prevent your settings from being 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.
)
This high-temperature rinse sanitizes dishes and glassware in accordance with NSF/ANSI Standard 184 for residential dishwashers. Certified dishwashers are not intended for licensed food establishments.
To activate the Child Lock: 1. Press the Power button.
EXTRA RINSE ( R+ )
2. Select the cycle (and desired options).
The Extra Rinse symbol indicates that an extra rinse has been added to the cycle. An extra rinse can help reduce hard water spotting on dishes. To add an extra rinse, press the Rinse button repeatedly until the Extra Rinse symbol appears in the display.
3. Press and hold the Half Load and Delay Start buttons for three seconds. The Child Lock indicator will illuminate in the display once the Child Lock is activated. 4. Close the door to begin the cycle.
DIGITAL DISPLAY The Digital Display on the control panel shows the ESTIMATED 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.
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For Authorized Service Technician
LDF8574/LDF8072/LSDF9962 LDF8574/LDF8072
4-3. TEST MODE
4-3. TEST MODE CHECK PROGRAM BUTTON
The number of pushing button
Load and Checking points Load LED lighting
Top Display
STEAM POWER+ STEAM DUAL+POWER
1 TIME
N03/U00/D00 (Version)
STEAM POWER
1 TIME
STEAM DUAL
Door open/ Remark closed
All LEDs are lighting
Either
10:00(0:00)
All LEDs are lighting
Either
1 TIME
11:11(1:11)
All LEDs are lighting
Either
STEAM DELICATE
1 TIME
12:22(2:22)
All LEDs are lighting
Either
NORMAL
1 TIME
13:33(3:33)
Either
QUICK & DRY
1 TIME
All LEDs are lighting
QUICK
1 TIME
EXTRA DRY
1 TIME
16:66(6:66)
1 TIME
17:77(7:77)
SPRAY
1 TIME
HALF LOAD
RINSE
DELAY START
14:44(4:44)
All LEDs are lighting
15:55(5:55)
Either
All LEDs are lighting
Either
All LEDs are lighting
Either
18:88(8:88)
All LEDs are lighting
Either
1 TIME
19:99(9:99)
All LEDs are lighting
Either
1 TIME
Steam Generator Temp(℃)
Steam Generator Thermistor
All 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
Steam Generator Water Level
Water Level
All LEDs
Closed
6 TIME
Sump Temp(℃)
Sump Thermistor
All LEDs
Closed
7 TIME
N07
Steam Generator Inlet Valve
All 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
Closed
Normal water Level : 170 ~ 260 Pure water : more than 130 H: High water level / L: Low water level
All LEDs are lighting
Either
Steam Demo mode : STEAM DUAL+NORMAL+POWER
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For Authorized Service Technician
LDF7561/LDF7551/LDS6040
CHECK PROGRAM Button
The number of pushing button
Top Display
POWER SCRUB +DUAL WASH + POWER
1 TIME
No3/U01/D01 (Version)
HALF LOAD + DELAY START + POWER
1 TIME
No3/U02/D01 (Version)
1 TIME
N01
2 TIME
Delay Start
Load and Checking points
Door open/ closed
Remark
All LEDs are lighting
Either
LDF7561/ LDF7551 Series
All LEDs are lighting
Either
LDS6040 Series only
Fan Motor
All LEDs
Closed
N02
Dispenser
All LEDs
Closed
3 TIME
Soil Level
Soil Sensor
All LEDs
Closed
4 TIME
Sump Temp(℃)
Sump Thermistor
All 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
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Auto Off
All LEDs
Closed
Load
① Normal water Level : 170 ~ 260 ② Pure water : more than 130
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LED lighting
For Authorized Service Technician
5. PARTS PARTS NAME NAME 5. 14
6 1
7
2
8
15
9
3
16
10 4
11
5
12
17 18 19
13 1. CONTROL PANEL 2. DOOR HANDLE
Mesh filter
3. FRONT COVER 4. LOWER COVER 5. LEVELING FEET
20
Outer filter
6.
Upper STS filter
7. BASE
8. TOP SPRAY ARM
SignaLight (front display)
9. UPPER SPRAY ARM
When a cycle is running, the SignaLight will illuminate for the active stage.
on steam models)
10.
Model with 4 LEDs : WASH – RINSE – DRY – CLEAN
11. LOWER SPRAY ARM
Models with 2 LEDs : OPERATING - CLEAN
12. DETERGENT AND RINSE AID DISPENSER
Models with 1 LED : OPERATING (Flickering) / CLEAN (Lighting)
13. DRYING VENT COVER
Once the cycle is complete, the CLEAN light will illuminate for four minutes.
14.
some models)
15. UPPER RACK
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
16. SILVERWARE BASKET 17. LOWER RACK
On appears in the display. The dishwasher will remember this setting until manually changed.
18. TOP DISPLAY 19. POWER BUTTON 20. FILTRATION SYSTEM
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Auto(5) Medium
Fix (Strong)
Fix (Strong)
Medium
Quick & Dry (Vario)
Quick (Vario)
Rinse Only (Vario) Rinse+ (Vario)
Medium
Medium
Auto(4) Fix (Medium)
Auto(3) Fix (Medium)
Auto(2) Fix (Medium)
Auto(1) Fix (Medium)
Normal (Half_Load)
Normal (Eco)
Auto(4) Medium
Auto(3) Medium
Auto(2) Medium
Auto(1) Medium
Soft
Fix (Soft)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
30
30
30
40
40
40
40
40
40
40
40
40
40
200 33
200 33
200 33
200 33
200 33
200 33
200 33
200 33
200 33
265 33
40
40
200 33
40
40
190 33
190 33
40
190 33
265 33
40
40
10
10
10
10
10
10
10
10
10
6
6
6
6
6
6
6
6
6
14
14
14
14
14
14
14
14
14
6
6
6
6
6
6
6
6
6
Heating
10 35
10 35
10 35
10 35
10 35
10 35
10 35
10 35
10 35
3
1.5
6
6
6
6
6
6
6
6
6
6
6
6
2
2
90
90
90
90
90
90
90
90
90
2
2
2
2
2
Drain
190 33
190 33
Stop
8
88
88
83
83
83
83
83
83
265 43
265 43
190 43
190 43
190 43
190 43
190 43
Wash
30
40
40
40
40
40
40
40
40
40
3
1.5
6
6
6
6
6
6
6
6
6
12
12
8
2
2
90
90
90
2
90
90
90
90
2
2
2
2
2
Drain
30
Stop
88
83
83
83
265 43
205 43
205 43
205 43
40
40
40
40
2
6
6
6
6
6
6
2
2
90
90
90
2
2
88
88
83
83
83
83
83
83
83
83
265 43
240 43
215 43
215 43
215 43
210 43
210 43
10
10
10
10
10
10
10
10
10
210 43
210 43
10
10
240 43
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
20
20
20
20
20
20
20
20
20
20
20
120
120
120
120
120
120
120
120
120
240
240
2
2
2
2
2
120
120
120
120
120
2
2
2
2
2
120
120
120
240
240
2
2
2
2
2
120
120
120
120
120
2
2
2
2
2
T
8
10
30
60
60
60
38
30
30
30
36
120 38
120 30
120 66
240 36
240 90
60
30
2
2
2
2
2
2
120
120
120
B
2
2
2
2
Stop
ST 30
Stop
210 43
Stop
2
Heating
83
Heating
B
120
120
120
ST
2
2
2
2
Stop
8
Stop
2
Steam
190 43
Steam
ST
H
50
50
50
30
30
30
50
30
30
30
50
50
50
40
50
58
68
50
50
2
2
Stop
2
Stop
2
240
ST
Steam
20
Heating
B
120
ST
2
2
Stop
5
Stop
2
Steam Pre Heating
5
Steam
ST
H
T
28 60 2
2
Stop
8
10
Steam Pre Heating
120
240
ST
Steam
83
Wash
20
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
90
110
110
110
110
110
110
110
110
110
110
110
110
110
110
Drain
2
Stop
5
Stop
40
Wash
5
W 43
240 43
195 43
190 43
195 43
195 43
195 43
195 43
195 43
200 43
200 43
200 43
200 43
240 43
240 43
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
Wash
2
2
20
Steam Water Supply
10
T
18
2
6
20
6
8
8
6
6
6
24
12
18
6
8
8
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
83
90
83
83
83
Drain
20
2
20
Water Supply
40
Stop
190 33
Wash
200 33
Wash
W 43
Stop
240 43
Stop
83
Drain
83
W 43
43
240 43
195 43
240 43
40
40
40
40
40
Wash
2
Stop
2
T
8
2
8
8
2
2
2
2
2
88
90
83
83
83
83
83
83
83
83
83
83
83
83
83
83
83
83
83
83
Drain
30
Stop
T
Stop
6
Wash
40
W 43
265 43
180 43
180 43
40
40
40
40
40
180 43 180 43
40
180 43
40
40
180 43 180 43
40
40
40
40
40
40
40
40
40
40
40
40
180 43
180 43
180 43
180 43
190 43
190 43
190 43
190 43
190 43
240 43
240 43
Final Rinse
600
600
600
600
600
Wash
Soft
2
20
Wash
40
Water Supply
W 43
Wash
30
Wash
83
Water Supply
2
Wash
T
Wash
T H
50
8
23 72
18 65
40 50
40 50
30 65
18 65
20 70
20 70
20 70
20 70
18 65
18 65
38 65
28 68
28 65
18 70
18 65
30 70
2
2
2
Stop
6
Water Supply
40
Steam
W 43
DrainB
480
480
ST
Steam
190 43
Heating A
83
Heating B
2
Rinse2 Wash
T
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
DrainD
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
Drain
Lower-Strong Upper-Soft
2
20
T
DrainB
Stop
6
Water Supply
H
Wash
T
Rinse1 Wash Rinse
6
DrainC Water Supply
14
Main Wash
Rinse
6
Wash Water Supply
10
Washing DrainB Heating A
40
Pre Wahs3 Wash
Heating B
W 33
DrainB
12
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
T
Dry
200 33
Pre Wash2 Wash
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
Dry
DRY
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
T
Dry
30
DrainB
Drain
Lower-Strong Upper-Soft
2
Soil Sensing
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
T
Dry
Fix (Strong)
Stop
Drain
20
Pre Wash1 Wash
Drain
Fix (Strong)
Drain S
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Drain
Steam Power (Vario) Steam Power (Half_Load) Steam Dual (Vario) Steam Dual (Eco) Steam Delicate (Vario) Steam Delicate (Eco) Steam Delicate (Half_Load) Normal (Vario)
Program Default
Program chart End
For Authorized Service Technician
(SCHEMATIC DIAGRAM) PROGRAM CHART 6.6.PROGRAM CHART (SCHEMATIC DIAGRAM) LDF8574/ LDF8072 LDF8574/ LDF8072/LSDF9962
Buzzer
Off
Wash B
Wash A
-
-
Fix (Strong)
Fix (Strong)
Medium
Quick & Dry (Vario)
Quick (Vario)
Rinse Only (Vario) Rinse+ (Vario)
Medium
Medium
Auto(4) Fix (Medium)
Auto(3) Fix (Medium)
Auto(2) Fix (Medium)
Auto(1) Fix (Medium)
Auto(5) Medium
Auto(4) Medium
Auto(3) Medium
Normal (Half_Load)
Normal (Eco)
Normal (Vario)
Auto(2) Medium
Soft
Auto(1) Medium
Delicate (Half_Load)
2
2
2
2
20
20
20
20
10
10
10
10
10
10
10
10
10
200 33
200 33
200 33
200 33
200 33
200 33
200 33
200 33
200 33
20
265 2 33 Drain A 190 20 2 33
20
5
5
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
10
10
2
20
10
190 63
265 20 2 33 Drain A
2
20
10
190 63
10
2
20
10
190 63
200 2 33 Drain A
2
20
2
20
2
2
20
20
2
20
10
190 63
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
10
10
10
10
10
10
10
10
10
6
6
6
6
6
6
6
6
6
14
14
14
14
14
14
14
14
14
6
6
6
6
6
6
6
6
6
10 35
10 35
10 35
10 35
10 35
10 35
10 35
10 35
10 35
3
1.5
6
6
6
6
6
6
6
6
6
6
6
6
8
8
2
2
90
90
90
90
90
90
90
90
90
2
2
2
2
2
2
Drain
5
Stop
Soft
2
20
10
Stop 88
88 DrainE
DrainE
83
83
83
83
83
83
265 43
265 43
190 43
190 43
190 43
190 43
190 43
190 43
40
40
40
40
40
40
40
40
40
3
1.5
6
6
6
6
6
6
6
6
6
12
12
8
8
2
2
90
90
90
2
90
90
90
90
2
2
2
2
2
2
88
DrainE
83
83
83
265 43
205 43
205 43
205 43
40
40
40
40
2
6
6
6
6
6
6
2
2
90
90
90
2
2
88
88 DrainE
DrainE
83
83
83
83
83
83
83
83
83
83
265 43
240 43
215 43
215 43
215 43
210 43
210 43
2 10 43
2 10 43
2 10 43
2 40 43
240 43
40
40
40
40
40
40
40
40
40
40
40
40
40
Wash
Fix (Soft)
2
20
Water Supply W 43
T H
8 50
10 50
30 50
60 30
60 30
60 30
38 50
30 30
30 30
30 30
36 50
38 50
30 50
66 40
36 50
90 58
60 68
30 50
58 60
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
20
110 DrainF
110
110
110
110
110
110
110
110
110
110
110
110
110
Drain
190 43
Drain 83
Stop
83
Stop 2
240 43
195 43
190 43
195 43
195 43
195 43
195 43
195 43
200 43
200 43
200 43
2 00 43
2 40 43
240 43
W 43
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
Wash
5
Stop
10
Wash
190 63
Wash
200 63
Stop T
T
18
2
6
20
6
8
8
6
6
6
24
12
18
6
8
8
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
83
20
DrainF
83
83
83
Drain
2
Wash 40
Stop
Delicate (Eco)
2
20
Wash W 43
43
240 43
195 43
240 43
W 43
40
40
40
40
40
Wash
6
Drain 83
T
8
2
8
8
2
2
2
2
2
88
20 DrainE
83 DrainF
83
83
83
83
83
83
83
83
83
83
83
83
83
83
83
83
83
Drain
20
Stop 2
Stop
6
265 43
180 43
180 43
180 43
180 43
180 43
180 43
180 43
180 43
180 43
180 43
180 43
190 43
190 43
190 43
190 43
190 43
240 43
240 43
W 43
Final Rinse Wash
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
Wash
5
Stop T
DrainB
T
8 50
23 72
18 65
40 50
40 50
30 65
18 65
20 70
20 70
20 70
20 70
18 65
18 65
38 65
28 68
28 65
18 70
18 65
30 70
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
T H
Heating B
Heating A
5
Wash
10
Wash
200 63
Wash 40
Rinse
Rinse2 Wash
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Drain D
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
Drain
Lower-Strong Upper-Soft
2
20
Heating W 43
Water Supply
83
Wash
2
Water Supply
T
DrainB
Stop
6
Wash
T H
Water Supply
6
Wash
14
Water Supply
6
Rinse1 Wash
Rinse
10
DrainC
Water Supply
20
Main Wash Wash
Rinse
5
DrainB
Water Supply
5
Pre Wash3 Wash
12
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
T
Dry
10
DrainB
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
DR Y
Dry
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
T
Dry
W 33
Pre Wash2 Wash
Washing DrainB
Drain
Fix (Strong)
2
Soin Sensing
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1 .5
1.5
T
Dry
Lower-Strong Upper-Soft
Stop
Drain
20
Pre Wash1 Wash
Drain
Fix (Strong)
Drain SS
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Drain
Power Scrub (Vario) Power Scrub (Half_Load) Dual Wash (Vario) Dual Wash (Eco) Delicate (Vario)
Program Default
Program chart End
For Authorized Service Technician
6. PROGRAM CHART(SCHEMATIC DIAGRAM) LDF7561/ LDF7551 LDF7561/ LDF7551/LDS6040
Buzzer
Off
For Authorized Service Technician
7. HOW TO DISASSEMBLE
7. HOW TO DISASSEMBLE
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 Supply Cable.
Lower Cover
2. Tub Felt 1) Tub Felt
--13 --
For Authorized Service Technician
(LDF**** Series) 3. Door Assembly 1) Front Cover
Open the door.
Remove 2 screws at the bottom. Remove 12 screws(stainless).
Control Panel
Front Cover
2) Control Panel Assembly
Remove 2 screws(Stainless).
Remove the wire connections. Be sure the wiring should not be changed in reassembling Remove the Latch assembly. Remove the Front Display.
Remove 8 screws for Controller.
Controller
Latch Assembly
Controller
-
-
- 14 -
For Authorized Service Technician
(LDS**** Series) 3-1. Door Assembly 1) Front Cover ① Open the door. ② Remove 2 screws at the bottom. ③ Remove 6 screws(stainless).
Control Panel
Front Cover
2) Control Panel Assembly ① Remove 8 screws(Stainless). ② Remove the wire connections. Be sure the wiring should not be changed in reassembling.
③ Remove the Latch assembly. ④ Remove 7 screws for Controller.
Controller
Latch Assembly
Controller
-
-
For Authorized Service Technician
Gasket
3) Fan Assembly
Inner Cover Detergent Dispenser
Fan Assembly
Open the door. Remove 4 screws and a earth screw for Door Bracket. Remove the wire connetions. Remove the Air Duct.
Air Duct
Turn the Inner Cover counterclockwise. Hose
4) Detergent Dispenser
Flange
Close the door Remove the wire connections. Door Hinge
Remove 6 screws with brackets. Push the Detergent slowly pulling up the the Flange by Standard Screwdriver.
Door Bracket
5) Door Spring (Right & Left) Push the Spring upwards and take it off from the the slot. Be careful not to be injured by the sharpedge of Tub. Take off the Hinge Link from the Hinge.
6) Door Liner Open the door. Pull the Door Liner and take it off from the Hinge Supporter.
Door Liner Assembly Hinge Supporter
- 15 - 3-
For Authorized Service Technician
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. Lower Frame
Lead Wire Holer
Lead Wire Holer Hook
5. Tub Assembly 1) Rack
① Remove the top . rack and the upper / lower rack
2) Nozzle and Water Guide
① Pull up the nozzle. ② Remove the water guide form the tub bracket. (Top & Rear)
- 16 -
For Authorized Service Technician
3) Sump Assembly ① Remove the wire connections. ② Remove 2 hoses assembly. . between sump and tub. ③ Rotate 2 holders ④ Lift up sump assembly. ⑤ Remove the wire connections in the back of the sump assembly.
4) Air guide Nut ① Turn the air guide nut counterclockwise. (Special tool might be needed.) Be careful the rubber packing of air guide assembly should not be lost.
5) Tub Sub Assembly ① Remove Side 4 screws. ② Remove rear 4 screws. ③ Disconnect 1 hose assembly of left side. (Steam nozzle hose) ④ Lift tub assembly upward. Be careful not be injured or scratch floor by the sharp edge of tub.
- 17 .
.
For Authorized Service Technician
6) Steam Nozzle ① Remove side 4 screws. ② Push the steam nozzle.
7) Holder Supporter, T ub Packing and Hinge Supporter Assembly.
Rotate the screwdriver, after slide it into the gap between Stopper Roller and Rail Roller.
- 18 -
For Authorized Service Technician
7) Foot & Nut Pull the Foot twisting Pull the Nut pushing the hook. Nut
Foot
8) Rear Leg Adjustment System
Holder
Remove 2 screws. Pull the Holder. Pull the Leg Adjust. Pull the Shaft Assembly.
Leg Adjust Shaft Assembly
- 20 -
For Authorized Service Technician
7. Sump Assembly 1) Heater
① Remove the wire connections.
② Pull the heater out of the sump after releasing the nut. 2) Pressure Switch & Soil Sensor ① Remove the wire connections. ② Disconnect 1 hose assembly. ③ Remove 1 screw.
④ Pull up Pressure Switch and Soil Sensor. 3) Impeller & Washing Motor
① Remove 4 screws & 1 hose assembly.
② Lift up pump assembly. ③ Remove 6 screws.
④ Remove 1 screw under a motor. ⑤ Lift up 2 pump cases. ⑥ Remove 1 screw. ⑦ Lift up impeller.
⑧ Remove 1 screw under a motor. ⑨ Lift up pump cover. 4) Vario Valve
① Remove 6 screws on the nozzle holders. ② Lift up nozzle holders. ③ Lift up Vario Valve.
5) Vario Motor & Vaio Cam
① Remove 2 screws for Vario Motor.
② Pull the Vario Motor/Cam and Micro switch.
- 21 -
-
For Authorized Service Technician
8. TROUBLESHOOTING SHOOTING METHODS 8.TROUBLE METHODS A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE ERROR MESSAGE INLET ERROR
displayed Condition
Not reached to the normal water level in spite of 10 min. water supply
DRAIN ERROR
displayed Condition
Not fully drained out in spite of 5 min. drain operation
LEAKAGE ERROR or displayed Condition The excessive RPM of Washing Motor happened during Wash cycle due to water leakage.
POSSIBLE CAUSE FOR ERROR OCCURRENCE
REMEDY
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.
Take action on Water Supply device.
The Drain Hose kinked or blocked.
Remove the cause of kink or block.
Wiring connection is OK?
Check the wiring connection.
The drain outlet of sump is
Measure the electric resistance of
blocked. The Drain Pump/Motor or circuit is
Drain Motor. (20-40
troubled.
the Circuit.
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.
)
Replace the Drain Motor or repair
No drainage though drain pump is working properly? Air in the impeller of the drain pump might cause this case.
Remove all the water remained in the 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.
Water leakage in Hose connections.
Replace the connections of Hose.
Water is leaked by damages.
Check the point of damages and
The Motor Water Seal leakage of
repair or replace the related parts. Read the Installation Instructions
Sump assembly. The height of Drain Hose connection (sink-Drain Hose) is not over 20 . Impeller of the Washing Pump is worn away.
-22 - -
(page 9) and fix it to the recommended Height. Replace the Impeller of the Washing Pump.
For Authorized Service Technician
ERROR MESSAGE
POSSIBLE CAUSE FOR ERROR OCCURRENCE
REMEDY
EXCESS ERROR The Inlet Valve is troubled.
Replace the Inlet Valve.
The Controller is troubled.
Repair or replace the Controller.
displayed Condition
Excessive water is supplied than normal water level.(Automatically drain Pump operated.)
THERMAL ERROR
The Inlet Water Temperature is very high. (over 194 ) Wiring connection is OK?
displayed
The Thermistor is OK?
Condition The resistance of thermistor not normally out put.
MOTOR ERROR
displayed Condition The Motor is working abnormally.
HEATER ERROR
displayed Condition
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.
Wiring connection is OK?
Check the wiring connection.
The Impeller of Washing Pump is locked.
Replace the cause of restriction.
The rotor of Washing Motor is locked. The Blade is locked.
Replace the PCB.
The Circuit of Heater is troubled.
Repair the Circuit of Heater.
The Thermistor is troubled.
Replace the Thermistor.
The Heater is shorted.
Replace the Heater.
The Relay Circuit is troubled.
Repair the Relay Circuit..
Wiring connection is OK? Does the vario S/W assembled properly? Is the vario motor operated properly? (range is 12~15Ω)
Check the wiring connection. . Reassemble vario S/W.
Replace the Washing Motor.
The water is not heated or the temperature in the Tub is overheated to over 194ßF
VARIO ERROR
displayed Condition
The position of vario cam is not properly.
-3 -
Replace the vario motor.
For Authorized Service Technician
B. STEAM GENERATOR ERROR MESSAGE 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 without steam.
ERROR MESSAGE
CONDITION
REMEDY
SE0
The normal condition
SE1
The generator heater temperature is high. (over 239 )
Check the water level sensor and thermistor check.
SE3
Not reached to the normal water level.
Check the inlet valve and sensor connection. .
SE4
The generator heater temperature is low. (lower than 158 )
Check the heater and thermistor.
- 24 -
-3 -
For Authorized Service Technician
Inlet Error Symptom 1. Inlet Error (IE)
Check Point 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
NA8
(1) (2) (3)
Flow Meter
Main PWB
(1) ~ (2) (2) ~ (3) (3) ~ (1)
NA8 1st ~ NA8 2nd NA8 2nd ~ NA8 3th NA8 3th ~ NA8 1st -3 -
Resistance [kΩ] 7~13 7~13 7~13
Voltage [Vdc] 12V 12V 12V
For Authorized Service Technician
Inlet Error Inlet Valve
BL6
Inlet Valve
Main PWB
Resistance [Ω]
Voltage [Vdc]
Steam (1) ~ (2) Sump (1) ~ (2)
BL6 1st ~ BL6 3th
25 ± 5%
12
BL6 2nd ~ BL6 3th
25 ± 5%
12
- 33 -
For Authorized Service Technician
8. TROUBLE SHOOTING METHODS Inlet Error
Condition. Not reached to the normal water level in spite of 10 min. water supply.
Is
displayed? Yes
The water is supplied. Frequency is not increased
Is the connector connected to main PCB assembly disconnected or disassembled? (NA8)
Does the water supplied? Check the frequency of Inlet Water by the Test Mode.
Yes
Reconnect or repair the connector.
The water is not supplied.
Is the water tap opened?
No
Open the water tap.
No
Repair the inlet hose.
Yes Is the inlet hose kinked?
Yes Is the water pressure Yes very low? (below 0.5kgf/㎠)
No
Install the pressure pump.
No
Is the voltage between connectors No out of range? (NA8 pin1 ~ pin2) - After remove terminal position assurance (TPA) of connector, check the voltage when water is injected. (The voltage is 12V DC (±15%)
Is the filter of inlet valve clogged by impure water?
Replace the main PCB assembly
Yes
a) Close the water tap. b) Unscrew the inlet hose. (Inlet valve side) c) Clean the filter of inlet valve.
No Is the Inlet Valve connector operate properly? Is the resistance vales between connectors out of range? (range is over 7~13kΩ) (White 8P, Pin1~Pin2)
Blue 6P 1-2 is 12V
Yes
Inlet Valve 25±5% (Ω)
-3 -
No
Replace the inlet valve
For Authorized Service Technician
Drain Error Symptom 1. Drain Error (OE)
Check Point 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
Drain Motor
YL3
Drain Motor
Main PWB
Resistance [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
-3 -
For Authorized Service Technician
Drain Error Condition. Is
Not fully drained out in spite of 5 min. drain operation.
displayed? Yes
Motor rpm is not increased.
Is the connector connected to main PCB assembly disconnected or disassembled? (YL3)
Does the drain motor operate? Check the rpm of drain motor by the test Mode.
Yes
Reconnect or repair the connector.
Motor rpm is increased.
Is the filter clogged?
No
Replace the main PCB assembly.
Is the inner drain hose and drain case kinked or blocked or frozen?
Yes No
Replace the drain motor
Yes Is the connector connected to drain motor disconnected or disassembled?
Yes
Remove the cause of kink or block.
Yes
Remove the cause of kink or block.
No
No
Is the resistance vales between connectors out of range? (range is 4~5Ω) (Yellow 3P, pin1~pin2~pin3)
Clean the filter
No Is the outer drain hose kinked or blocked or frozen?
Is the voltage between connectors out of range? (YL3 pin1~pin2~pin3) - After remove terminal position assurance (TPA) of connector, check the voltage when water is drained. (The voltage is over 12V DC)
Yes
Yes
Reconnect or repair the connector.
-3 -
For Authorized Service Technician
Leakage Error Condition. Is or displayed? Yes Water is not flooded in the base.
Is the float assembled properly?
Is the water flooded in the base? How to check. Disassembly the lower cover.
Yes
Replace or repair the float.
The water level in Tub goes down during operation or standby mode.
Water is flooded in the base.
Tilt the machine and drain water in the base. And find the cause of leakage.
-3 -
Yes
Remove the cause of leakage.
For Authorized Service Technician
Thermal Error Symptom 1. Thermal Error (tE)
Check Point 1.Check Electric Wiring. 2.Check Thermistor’s Resistance. 3.Check connection between main PWB & heater assembly.
Thermistor
RD6
(2) (1)
Thermistor
Main PWB
Resistance [kΩ]
(2) ~ (1)
RD6 2nd ~ RD6 3th
12 ~ 13
-3 -
For Authorized Service Technician
Thermal Error Condition. Is
The resistance of thermistor not normally out put.
displayed? Yes
Is the connector connected to main PCB assembly disconnected or disassembled? (RD6)
Yes
Reconnect or repair the connector.
Is the connector connected to heater assembly disconnected or disassembled?
Yes
Reconnect or repair the connector.
No No Is the resistor between connectors out of range? (RD6 pin2 ~ pin3) - After remove the connector from the PCB, check the resistor. (range is 12~13kΩ)
Yes
Is the thermistor operated properly? (range is 12~13kΩ)
Replace the main PCB assembly.
No
-3 -
Yes
Replace the thermistor.
For Authorized Service Technician
Heater Error Symptom 1. Heater Error (HE)
Check Point 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 PWB
Resistance [Ω]
Voltage [Vac]
(1) ~ (2)
X1 4th ~ X2 4th
11~12.5
Working : 120±15% Stop : 0~1
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For Authorized Service Technician
Heater Error Condition.
Is
displayed? Yes
Is the heater resistance Measured properly? (range is 11~12.5Ω)
Yes
Is the connector connected to main PCB assembly disconnected or disassembled? (X1 : stand-by relay, X2 : Sump Heater relay, RD6 : Thermistor )
Yes
Reconnect or repair the connector.
No
Reconnect or repair the trans cable.
No
Does the inlet valve working properly? (damaged or operating abnormally)
No When door is closed, check the resistor between X1 4pin and X2 4pin. `
The water is not heated or the temperature in the inner tub is overheated to over 95℃
Yes
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For Authorized Service Technician
Does the PCB assembly working properly? When door is closed, check the resistor between X1 4pin and X2 4pin. -. Heater working : 120VAC 15% -. Heater stop : 0~1V
No
Replace the PCB assembly
Yes
Replace the pressure S/W.
Yes Is the pressure S/W operating properly?
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For Authorized Service Technician
Lock motor Error Symptom 1. Lock motor Error (LE)
Check Point 1.Check Electric Wiring. 2.Check Wash motor’s Resistance. 3. Voltage of the Hall sensor’s connector. -. When power on : 8~ 15V (4)
Wash motor
(3) (2) (1)
RD3
WH4
(8) (7) (6)
Wash Motor (8) ~ (7) (7) ~ (6) (6) ~ (8)
Main PWB RD4 1st ~ RD4 2nd RD4 2nd ~ RD4 3th RD4 3th ~ RD4 1st
Resistance [Ω] 5 ~ 20 5 ~ 20 5 ~ 20
Wash Motor
Main PWB
Result
(2) ~ (3)
WH4 1st ~ WH4 4th
(5) ~ (3)
WH4 3th ~ WH4 4th
(4) ~ (3)
WH4 2nd ~ WH4 4th
8 ~ 15 Vdc (Voltage Input) 8 ~ 15 Vdc (Pulsing Signal) 8 ~ 15 Vdc (Pulsing Signal)
- 3-
For Authorized Service Technician
Locked motor Error Condition. Is
The revolution of washing motor is not increased.
displayed? Yes
Check the connectors below. Is the connector disconnected or disassembled?
No
Reconnect or repair the connector.
No Is the resistance values in the range of 15 to 20Ω? ※ 1-2, 2-3, 3-1 pin ( After pull out the RD3 connector, check the terminal of the connector in wire. (Red 3P, male)
Check or replace the motor.
Main PCB assembly : RD3
Yes Is the voltage between connectors out of range? (WH4 pin1 ~ WH4 pin4) - After remove terminal position assurance (TPA) of connector, check the voltage, when just power on. (The voltage is 8~15V)
Main PCB assembly : WH4
Yes Is the resistance vales short? (0~50Ω) (After pull out the RD3 connector, check the housing connector (Pin1~Pin2, Pin2~Pin3, Pin3~Pin1) individually.
Yes
Yes
Replace the main PCB assembly.
Yes
Remove the cause of block or replace the motor.
Replace the main PCB assembly.
No Is the motor blocked?
No No
Replace the motor.
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For Authorized Service Technician
Nozzle(Vario) Error Symptom 1. Nozzle(Vario) Error (nE)
Vario motor
Check Point 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 S/W (1)
BL4
NA8
(2)
Vario Motor
Main PWB
(1) ~ (2) BL4 1st ~ BL4 4th
-
-
Resistance [kΩ]
Voltage [Vac]
12 ~ 15
Working : 120±15% Stop : 0~1
For Authorized Service Technician
Nozzle(Vario) Error Condition. Is
The position of vario cam is not properly.
displayed? Yes
Check the connectors below. Is the connector disconnected or disassembled? (BL4 : vario motor, NA8 : Vario S/W sensing)
No
Reconnect or repair the connector.
Does the vario S/W assembled properly?
Yes
Reassemble vario S/W.
No Is the vario motor operated properly? (range is 12~15kΩ)
Yes Does the PCB assembly working properly? When Door is closed, check the voltage between BL4 pin1 and BL4 pin4. -. Vario motor stop working : 120VAC -. Vario motor stop stop : 0~1V
Yes
-
-
Yes
Replace the vario motor.
For Authorized Service Technician
No Power Symptom 1. No Power
Check Point 1.Check Electric Wiring. 2.Check the Customer’s outlet. 3.Check Noise Filter. 4.Check LED on in Main PWB
Noise Filter (3) WH1
(1)
(3) (1)
Noise Filter
Resistance [Ω]
WH1 (1) ~ RD1 (3)
0
WH1 (3) ~ RD1 (1)
0
-
-
RD1
For Authorized Service Technician
No Power
Is the supplied voltage 120V AC?(+10%, -15%)
No
Check the fuse or reset the circuit breaker.
Is the connector connected to Main PCB Assembly disconnected or disassembled?
Reconnect or repair the connector.
Yes
Yes Is the current rating of multi-outlet power strip enough? (Avoid connecting several electric devices )
No
No
Alternate with explanation.
Yes
Replace the display PCB assembly.
Is LED on while the power is on?
No
Replace the main PCB assembly.
No
Reconnect or repair the connector.
Yes Yes Is nine pin wire of display PCB Assembly broken? (CON1)
Is the connector connected to PCB/Noise filter disconnected or disassembled?
No
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For Authorized Service Technician
Washing result is not satisfactory.
After washing, is there any white deposits on the dishes or inner tub?
Yes
Does the salt refill lamp blink? (Refill salt.)
Yes
Reduce the amount of Rinse aid.
Yes
a) Wash filter assembly. b) Check the rotation of spray arms. (lower, upper, top nozzle)
Yes
a) Does the upper nozzle fit properly to the water guide? → Reassemble or replace the upper nozzle or water guide b) Does the water guide fit properly to the sump? → Reassemble or replace the water guide.
No After washing, is there any streaks on the dishes or inner tub?
No After washing, is there small particles (food) on the dishes of inner tub?
No Is the washing result of cups & glasses not satisfactory? (Upper basket)
No
Is the washing result of utensils not satisfactory? (Top basket)
Yes
a) Does the top nozzle fit properly to the water guide? → Reassemble or replace the top nozzle or water guide b) Does the water guide fit properly to the sump? → Reassemble or replace the water guide.
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For Authorized Service Technician
Drying result is not satisfactory.
After washing, is there any streaks on the dishes or inner tub?
Yes
Reduce the amount of Rinse aid.
Yes
Increase the amount of Rinse aid.
No After washing, is there water drops on the dishes or inner tub?
No Is the drying result of Yes cups & glasses not satisfactory? (Upper basket)
No
Is the drying result of utensils not satisfactory? (Top basket)
Yes
a) Does the upper nozzle fit properly to the water guide? → Reassemble or replace the upper nozzle or water guide b) Does the water guide fit properly to the sump? → Reassemble or replace the water guide.
a) Does the top nozzle fit properly to the water guide? → Reassemble or replace the top nozzle or water guide b) Does the water guide fit properly to the sump? → Reassemble or replace the water guide.
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For Authorized Service Technician
C. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM No Power on when the power button pressed.
The Power connection is correctly connected.
NO
$ " $ #
YES
The Fuse or Circuit Breaker of house is O.K?
NO
$ ! ! !
YES
The Power Switch or the Circuit is O.K?
NO
$ " " !
YES
C h e c k t h e C o n t r o l l e r. ( P o w e r C i r c u i t )
-
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- 25 -
For Authorized Service Technician
The Wash Pump/Motor does not run.
The Door is tightly closed?
NO
, #&' ##%' ' +. , ' ##%* ' " ' "
YES
The Wiring connections is OK?
NO
,#""'' * % "#""' #"&% ''#' Washing Motor.
YES
The Blade is not locked by a small and sharp object?
NO
,!#)' (&# # #%%$ '
YES
Replace the W "(!$#'#%
-
-
- 26 -
For Authorized Service Technician
Washing Results are not Satisfactory
After washing, are there still White deposits or streaks on the dishes?
YES Reduce the amount of Rinse-Aid (for Streak)
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.
Dry Results are not satisfactory
Increase the amount of Rinse-Aid.(Set the number higher)
Select the Program that the Rinse temperature is higher.
-- 27 3 --
For Authorized Service Technician
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.)
- 28 -
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For Authorized Service Technician
INSTALLATIONINSTRUCTION INSTRUCTION 9.9.INSTALLATION 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 proper drainage. 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.
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.
Ensure the floor under the dishwasher is at the same level as the rest of the room to allow for any service requirements.
-
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For Authorized Service Technician
Step 2: PREPARE THE ELECTRICAL WIRING
WARNING
For 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 electrical code/provincial and municipal code and/or other local codes.
1. This appliance must be operated with correct voltage as shown in this manual and on the rating plate, and connected to an individual, properly grounded branch circuit, protected by 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 the dishwasher 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 qualified electrician. No other appliance shall be connected to the same outlet by a double adapter or 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 in the figure below. If you find any damage to the dishwasher, Please contact your dealer or builder immediately.
Figure A
- -30 - -
For Authorized Service Technician
Step 3: PREPARE THE WATER SUPPLY CONNECTION 1. This dishwasher may be connected to either hot or cold water. If the water can not be maintained below 149 (65 ), the dishwasher must be connected to cold water. 2. When connecting the dishwasher water line, sealing tape or compound should be used to avoid leaks. 3. When connecting the dishwasher water line, the house supply should be shut off. 4. The Water Supply Tube must be oriented as shown in Figure A on page 6.
Step 4: PREPARE DISHWASHER FOR INSTALLATION 1. Adjust the legs to the required height to fit properly under the countertop as shown below. 2. Check the level of dishwasher by using level.
Left side – turn the adjusting screw counterclockwise to lower the leg and raise the rear of the dishwasher.
Right side – turn the adjusting screw clockwise to lower the leg and raise the rear of the dishwasher.
- -31 - -
Front feet can be adjusted from the top using a 1/4 square drive wrench.
For Authorized Service Technician
Step 5: INSTALL THE DISHWASHER IN CUPBOARD 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 hose inside the cabinet is not kinked. 4. Follow the instruction as in Figure B.
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For Authorized Service Technician
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) that must 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 drain connection must meet local plumbing regulations. The S trap spigot must be drilled out cleanly and free of obstruction to its maximum internal diameter, if used for drainage. To prevent syphoning, one of the following instruction methods must be followed:
Figure C: Connection to Disposer or waste Tee.
Drain Requirements Follow local codes and ordinances.
Figure D: Connection to Air Gap.
Do not exceed 10 ft. (3m) distance to drain. Do not connect drain lines from other devices to the dishwasher drain hose.
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For Authorized Service Technician
Step 7: WATER SUPPLY CONNECTION 1. When connecting, sealing tape or sealing compound should be used to avoid water leaks. 2. Before connecting, turn off the water supply. 3. After fitting the Elbow into the Inlet Valve, slide the Flexible Stainless Tube or Copper Tube into the Elbow.
Inlet Valve Elbow Water Supply Tube
4. Tighten the nut and make sure that the line is not kinked or sharply bent.
Step 8: ELECTRICAL POWER CONNECTION 1. Before beginning, turn off electrical power to the unit at the circuit breaker. 2. Remove the Junction Cover and then Install the Strain Relief. 3. Twist Wire Connectors tightly on the wires. Wrap each connection with Electrical tape. Junction Cover
4. Check again and make sure that all wires are connected correctly, black to black, white to white, green to green (ground to ground). 5. Replace the Junction Cover.
Junction Box
- -34 - -
For Authorized Service Technician
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 for water leaks and operating conditions. 4. Replace the Lower Cover.
- -35 - -
For Authorized Service Technician
10. 10.EXPLODED EXPLODEDVIEW VIEW
“The following parts are not illustrated" Description
Printed *Owner’s Manual materials *Energy Label *Service Manual
- 62 -
Loc No. G001 G002 G004
For Authorized Service Technician
LDF8574 / LDF8072 / LSDF9962 EXPLODED VIEW
EXPLODED VIEW E005
F101
E010
F001
A040
A003
A130
M050 M051
M053
E005 M052
--37 63--
M054
For Authorized Service Technician
LDS6040 / LDF7561 EXPLODED VIEW EXPLODED VIEW
E005
F101
E010
F001
A040
A003
A130
M050
M051
M053
ACCESSORIE S
E005 M052
- 64 -
M054
For Authorized Service Technician
LDF7551 EXPLODED VIEW EXPLODED VIEW
E005
F101
E010
F001
A040 A130
M050 M051
M053
ACCESSORIE S
E005 M052
- -3765- -
M054
For Authorized Service Technician
LDF8574 / LDF8072 / LSDF9962 EXPLODEDVIEW VIEW- TUB - TUBASSEMBLY ASSEMBLY EXPLODED F110 F113 F040
F060
F117 F111
F050 F112 F022
F117 F111
F230 F300
F041
F118
F210 F113
F171 F011
F013 F144 F132 F137
F143 F166
F138 F117 F165
F117
F011
F105 M006
M070 F013
M071
- 66 -
F215
For Authorized Service Technician
LDS6040 / LDF7561 EXPLODED ASSEMBLY EXPLODED VIEW VIEW -- TUB TUB ASSEMBLY F110 F113
F117 F111
F060
F040
F112
F050
F111
F022
F118
F210 F113
F041
F171 F011
F013 F144 F132 F137
F143 F166
F138 F117 F165
F117 F011
F105 M006
M070 F013
M071
- 67 -
F215
F117
For Authorized Service Technician
LDF7551
EXPLODED VIEW - TUB ASSEMBLY
EXPLODED VIEW - TUB ASSEMBLY
F060
F040 F050
F022 F041
F171 F011
F013 F144 F132 F137 F166
F143 F138 F117 F165
F117
F011
F105 M006
M070 F013
M071
- 68 -
F215
For Authorized Service Technician
LDF8574 / LDF8072 / LSDF9962 EXPLODED VIEW - BASE ASSEMBLY
F047
M500 F046
M210
M090
M100
A160
M260
F149 M105
M266
F148
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For Authorized Service Technician
LDS6040 / LDF7561 / LDF7551 EXPLODED VIEW - -BASE EXPLODED VIEW BASEASSEMBLY ASSEMBLY
M090
M100
A160
F148
M260
M210
F149 M266
M105
- 70 -
- 39 -
For Authorized Service Technician
EXPLODED VIEW - RACK ASSEMBLY EXPLODED VIEW - RACK ASSEMBLY F192
A165
F004
A159 A156
A080
A151 F005
A157 A158 A145
A155 A070
A101 A102 A103
A060 A150 A050
A110
A141
A147
A146
A142
A140
- 71 -
F191
For Authorized Service Technician
LDF8574 / LDF8072 / LDF7561 / LSDF9962 / LDS6040 EXPLODEDVIEW VIEW- CUTLERY - CUTLERYRACK RACKASSEMBLY ASSEMBLY EXPLODED
A170
A171
A172 A152
- 72 -
For Authorized Service Technician
LDF8574 / LDF8072 / LDF7561 / LDF7551 / LSDF9962 EXPLODED VIEW - PANEL ASSEMBLY
EXPLODED VIEW - PANEL / DOOR ASSEMBLY K260
K207
K215 K280 K270 K280
K251 K254
K110
K230
K121
K122 K101 K001
K100 K124 K005
K002
K141 K140
K010
F142 F141 F174 K030
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For Authorized Service Technician
LDS6040 EXPLODED VIEW - PANEL / DOOR ASSEMBLY
K200
K212
K006
K262
K254 K260
K252
K251 K280
K030
K110
K121
K122 K101 K001
K100 K124
K217
K002
K141
K
K140 F142 F141 F174
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For Authorized Service Technician
EXPLODED VIEW - SUMP ASSEMBLY A120 M072
M070
M074
M125
M120
M071 M025
M126 M081 M087 M089 M075
M031
M091
M028 M060
M026
M027
M006
M030 M130 M088
M131
M133 M132 M134
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For Authorized Service Technician
P/No. : MFL37554810
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