LG LDF9810ST, LDF9810WW, LDF9810BB Service Manual
P/No. : MFL37554802
DISHWASHER
SERVICE MANUAL
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY
FOR SAFETY AND CORRECT SERVICES.
NOTE
MODEL : LDF9810(ST,WW,BB), LDF9810 (ST,WW,BB) / 01
1. CAUTION......................................................................................................................... 3
2. SPECIFICATION.............................................................................................................. 4
3. WIRING DIAGRAM........................................................................................................ 5
4. FEATURES & TECHNICAL EXPLANATION ................................................................... 6
5. PARTS NAME ................................................................................................................ 11
6. PROGRAM CHART ..................................................................................................... 12
7. HOW TO DISASSEMBLE ............................................................................................ 13
8. TROUBLE SHOOTING METHODS.............................................................................. 22
A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE ......... 22
B. STEAM GENERATOR ERROR MESSAGE............................................................. 24
C. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM........................................... 25
9. INSTALLATION INSTRUCTION ................................................................................... 29
10. EXPLODED VIEW ...................................................................................................... 36
11. REPLACEMENT PART LIST ....................................................................................... 42
CONTENTS
- 2 -
- 3 -
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.
CAUTION
- 4 -
Rated Voltage / Frequency AC 120V/60Hz
Installation Built-In
Place Settings 14
Product Dimension(in) 23 7/8
〃x 25〃x 33 7/8〃
Product Weight(lbs) 128lbs
Door Color White, Black, Stainless
Tub Material Stainless Steel
Control Electronic
Rated Power(Watt) 1,350
Heater Power(Watt) 1,200
Programs 6 Cycle
Upper Rack Position Adjustable
Lower Rack 50% Fold down
Cutlery Rack Yes
Water Consumption
10-26 (Normal)
Power Consumption(kWh/year) 285~310
Operating Time (min) 101-135 (Normal)
Fan Dry System Yes
Steam Generator Yes
Delay Start Function Yes
Auto-Off Power Switch Yes
Process Monitor Yes
Wash Level 5
Racks Nylon Coating
Operating Water Pressure (Bar) 20-120 (140-830kPa)
ITEM
SPECIFICATION
2. SPECIFICATION
- 5 -
1. LDF9810 series
3. WIRING DIAGRAM
- 6 -
4. FEATURES & TECHNICAL EXPLANATION
4-1. Product Features
If you raise the upper rack, you can load large dishes (Max. 14 in.) in the lower
rack. The tall tub provides the clearance to handle large dishes as well as
overall large capacity. LG dishwashers let you load very large items in the
upper and lower racks.
The new
Slim Direct Motor
TM
is inverter-controlled. Wash power is controlled
based on program selection. It also offers high energy efficiency to minimize
energy use.
This is one of the best performance solutions for drying dishes because it
minimizes venting humid air to the outside of the dishwasher. In addition, this
system ensures better drying results compared to the condensing drying
system while minimizing energy consumption.
Because the water spray is alternated between the upper and lower
racks, all the power from the motor is directed to only one rack at a time which
allows superior performance and reduced consumption of water and
electricity.
For best wash results, the self-cleaning filter system continuously cleans the
water as it circulates. Your LG dishwasher has a self-cleaning filter that grinds
food into small particles before it goes down the drain.
■■
Ultra Large Capacity
■■
Slim Direct Motor
TM
■■
Hybrid Drying System
■■
Vario Spray System
■■
Self-Cleaning Filter
Third level cutlery rack makes it easy to load and unload flatware and cooking
utensils.
Trays can be adjusted or removed to make more room for regular upper rack
items.
■■
Removable Cutlery Rack
Moist
Air
Dry
Air
Mixed
Air
to
Upper
Arm
to
Lower
Arm
Soil Sensor
Fine Mesh
to Drain
- 7 -
4-2. How To Use Dual Intensity™
Adding STEAM to the wash cycles enhances wash performance with very little
additional water or energy consumption. The SteamDelicate™ cycle can be
used for cleaning delicate item such as china or stem ware.
■■
Steam Washing and Steam Delicate™
The light touch buttons on the control panel make selections easy and
convenient, while the blue LCD display clearly displays the selected cycle and
options.
■■
Light Touch Buttons and Blue LCD
The spray intensity of the upper and lower racks is programmable by the
consumer. You can select wash power based on soil level. For example, by
selecting Soft Spray for the upper rack and Strong Spray for the lower rack,
you can wash delicate items like stemware on the upper rack
while washing pots and pans on the lower rack.
■■
Dual Intensity
TM
Wash Cycle
4-3. Auto-Off
When the power is turned on, if you don’t select program or if you don’t close the door after selecting a
program, your dishwasher will automatically turn off in 10 minutes.
1. Select the desired wash cycle.
2. Press and hold the
SPRAY key for 3 seconds. Both the UPPER and LOWER indicators will be
illuminated indicating that both racks will be washed. The UPPER indicator will be blinking to show this
is the rack selected for adjustment of the spray intensity.
3. Press the SPRAY key repeatedly to set the desired spray intensity for the UPPER rack
(Strong/Medium/Soft).
4. Press the HALF LOAD key to switch to the LOWER rack. The LOWER rack indicator will now be blinking.
5. Press the SPRAY key repeatedly to set the desired spray intensity for the LOWER rack
(Strong/Medium/Soft).
6. Select other options as desired.
7. Close the door to start the dishwasher.
8. To cancel the Dual Intensity™ wash option, simply press one of the cycle keys. The default settings for
that cycle will be displayed.
NOTE Once the cycle has started, cycles and options cannot be changed.
- 8 -
4-4. Display Panel
This cycle is for very heavily soiled loads including pots, pans,
and casserole dishes, which may have cooked on food.
Press the STEAM button to add steam to the selected cycle for added cleaning
power.
NOTE : Steam can only be added to the following cycles:
SOAK, POWER SCRUB, NORMAL.
Repeated pressing of the RINSE key will select Sanitary( ),
Extra Rinse( ) or both.
Select the spray intensity that matches your cleaning needs.
Repeated pressing of the SPRAY key will select Strong ( ), Medium ( ) or
Soft ( ).
For smaller loads, use this option to wash only the upper or lower rack to save
energy.
Press
HALF LOAD repeatedly to select either the upper or lower rack.
Use this option to start the dishwasher at a later time.
Press
DELAY START repeatedly to delay the beginning of the selected cycle.
Each press of the button will increase the delay time by one hour. Maximum
delay is 24 hours.
This cycle is for normally soiled, every day loads.
This cycle is for normally soiled, every day loads.
This cycle is for washing delicate items like china or stemware.
This cycle is for quick wash of lightly soiled, recently used dishes, and
cutlery.
This cycle is just for rinsing dishes quickly. No detergent is used.
SOAK
STEAM
RINSE
SPRAY
HALF LOAD
DELAY START
POWER SCRUB
NORMAL
STEAM DELICATE
QUICK
RINSE ONLY
CYCLE
OPTION
- 9 -
To cancel a running cycle, open the door, then press and hold the STEAM
DELICATE and NORMAL buttons together for 3 seconds.
The drain pump will be activated and the cycle will be canceled.
To lock/unlock the buttons, press SPRAY and RINSE simultaneously for 3 seconds.
When CHILD LOCK is set, the CHILD LOCK indicator will appear and all buttons are
disabled.
CANCEL
CHILD LOCK
CANCEL & CHILD LOCK
STEAM OPTION INDICATOR
Indicates that the STEAM option has been selected. The symbol will blink while
steam is being injected into the dishwasher.
RINSE INDICATOR
It shows configuration of rinse option.
The ( ) symbol indicates that sanitary rinse has been selected.
The symbol blinks during the cycle if the sanitary temperature has been achieved.
Once the cycle has ended, the symbol will be steady if the sanitary temperature has
been achieved. (See NOTE below.)
The ( ) symbol indicates that an extra rinse has been added to the selected cycle.
SPRAY INDICATOR
Indicates the selected spray intensity: Strong ( ), Medium ( ) or Soft ( ).
HALF LOAD INDICATOR
Each press of the HALF LOAD key cycles between upper rack only and lower rack
only.
When DUAL INTENSITY is selected, both lights will be and one will be blinking. The
spray intensity for the blinking rack can be adjusted independently.
CHILD LOCK
This symbol will be visible when Child Lock is activated.
RINSE AID
The symbol will be activated when the rinse aid needs to be refilled
TIME REMAINING
Indicates normal run time for the cycle selected.
During the cycle, the estimated time remaining for the selected cycle will be
displayed
INDICATOR
- 10 -
4-5. TEST MODE
CHECK PROGRAM
BUTTON
The number of
pushing button
Top
Display
Load and Checking points
Door open/
closed
Rinse + Spray
+ Power
Soak
Power Scrub
Normal
Steam Delicate
Quick
Rinse Only
Steam
Rinse
Spray
Half Load
Delay start
Normal water level : 270 ~ 275
Pure water : more than 130
H: High water level / L: Low water level
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
2 TIME
3 TIME
4 TIME
5 TIME
6 TIME
7 TIME
8 TIME
9 TIME
10 TIME
11 TIME
12 TIME
13 TIME
14 TIME
15 TIME
Steam generator
Temp(
)
0n:H1
0n:33
Frequency
0n:35
0n:36
0n:37
0n:38
Sump Temp(
)
Soil level
0n:3b / Motor RPM
Steam generator
Water level
0n:3d
0n:3E
0n:3F
(RPM, Frequency)
0n:3H/0U:00
00:00
11:11
22:22
33:33
44:44
55:55
66:66
77:77
88:88
99:99
Steam generator
Thermistor
Steam generator
Heater (for 1.2 sec)
Drain Pump
Inlet Valve
Dispenser
Sump Heater
(for 10 sec)
Fan Motor
Sump Thermistor
Soil sensor
Wash Pump
H170/L170
Lower Nozzle
(Vario)
Upper Nozzle
(Vario)
W/Pump+Vario+
Heater (for 1min)
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs are lighting Both
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
Both
Both
Both
Both
Both
Both
Both
Both
Both
Both
Both
Closed
Both
Closed
Closed
Closed
Closed
Closed
Both
Both
Closed
Both
Closed
Closed
Closed
※ Steam Demo mode : Steam + Power
- 11 -
5. PARTS NAME
The appearance and specifications may be varied without notice according to localities.
INSTALL BRACKET WOOD SCREW LEVELING KIT
LDF 9810 Series
Control Panel
Door Handle
Front Cover
Lower Cover
Leveling Foot
Side Cabinet
Base
Top Spray Arm
Upper Spray Arm
Removable Tines
Steam Nozzle
Lower Spray Arm
Detergent & Rinse Aid Dispenser
Vapor Vent Cover
Tub Lamp (IllumiTubTM)
Cutlery Rack
Upper Rack
Cutlery Basket
Lower Rack
Blue LCD Display
Power Button
- 12 -
6. PROGRAM CHART(SCHEMATIC DIAGRAM)
LDF 9810 Series
- 13 -
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. HOW TO DISASSEMBLE
7-1. FULL DISASSEMBLE
1. Lower Cover and Lower Felt
1) Remove the front 2 screws.
2) Pull the Felt.
3) Remove the Inlet Hose and Power Supply
Cable.
2. Cabinet and Tub Felt
1) Cabinet-R
Remove front 2 screws.
Remove rear 3 screws.
2)
Cabinet-L
Remove front 2 screws.
Remove rear 3 screws.
3)
Tub Felt
Lower Felt
Lower Cover
Cabinet-L
Tub Felt
Cabinet-R
Control Panel Front Cover
C
3. Door Assembly
(LDF 6810/7811/7810/8812 Series)
1) Front Cover
Open the door.
Remove 12 screws(stainless).
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.
- 14 -
ontroller
Latch Assembly
Controller
- 15 -
H
H
3) Fan Assembly
Open the Door.
Remove 4 screws and a earth screw for
Door Bracket.
Remove the wire connector.
Ramove the Air Duct.
Ramove Hose with Clamp.(Some Moels)
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 the
the Flange by Standard Screwdriver.
5) Door Spring (Right & Left)
Push the Spring upwards and take it off
from the Hinge Bracket.
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
Fan Assembly
Air Vent
Door Bracket
Frange
Hose
Gasket
Inner Cover
Detergent
Dispenser
inge Bracket
inge Spring
- 16 -
Lead Wire Holer Hook
Lead Wire Holer
Lower Frame
D
H
4. Lower Frame
1) Press the holder hook as shown in figure.
2) Remove 4 screws.
6. Drain Hose Holder
1) Press the holder hook as shown in figure.
2) Pull the Drain Hose and remove the Drain
Hose Holder.
5. Put the Dishwasher upside down.
rain Hose
older
Drain Hose
- 17 -
7. Base Cover
1) Remove 2 screws.
2) Pull the Base Cover out.
8. Harness & Hose Assembly
1) Remove the wiring connections.
2) Remove the Hose connections from
Sump Assembly.
You can see the information of Wiring
Diagram at the back of Lower Cover.
Cabinet Base
Base Cover
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