LG LDF6920WW User manual

DISHWASHER
SERVICE MANUAL
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY
FOR SAFETY AND CORRECT SERVICES.
NOTE
MODEL : LDF6920(WW,BB,ST)

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1. CAUTION......................................................................................................................... 4
2. SPECIFICATIONS ........................................................................................................... 5
3. WIRING DIAGRAM........................................................................................................ 6
4. FEATURES & TECHNICAL EXPLANATION ................................................................... 7
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. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM........................................... 24
9. INSTALLATION INSTRUCTION ................................................................................... 28
10. EXPLODED VIEW .......................................................................................................35
CONTENTS

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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 !

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2. SPECIFICATION
Rated Voltage / Frequency AC 120V/60Hz
Installation Built-In
Place Settings 16
Product Dimension(in) 23 3/4
x 24 5/8x 33 1/2
Product Weight(lbs) 90lbs
Door Color White, Black, Stainless
Tub Material Stainless Steel
Control Electronic
Rated Power(Watt) 1,350
Heater Power(Watt) 1,200
Programs 5
Upper Rack Position manual
Lower Rack 50% Fold down
Water Consumption 10-26 (Normal)
Power Consumption(kWh/year) 285-310
Operating Time (min) 101-135 (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) 20-120 (140-830kPa)
ITEM SPECIFICATION

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6920 serise
3. WIRING DIAGRAM

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4. FEATURES & TECHNICAL EXPLANATION
4-1. Product Features
If you raise the Upper Rack, you can load large dishes in the Lower Rack.
(Max. 14 in.)
The tall tub provides large dishes loading as well as large capacity.
LG dishwashers let you load oversized items in the Lower and Upper Rack.
Newly introduced Slim Direct Inverter motor is inverter-controlled. Speed is
controlled based on program selection. It also offers high energy efficiency to
minimize energy loss.
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.
Because of alternating water spray between the Upper and Lower
Rack, the water pressure 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 Big Capacity
■■Slim Direct MotorTM
■■Hybrid Drying System
■■Vario Spray System
■■Self Cleaning Filter
Moist
Air
Dry
Air
Mixed
Air
to
Upper
Arm
to
Lower
Arm
Soil Sensor
Fine Mesh
to Drain

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PROGRAM
• Press the program that
corresponds to your
desired wash cycle.
CANCEL
•To cancel a running
program, open the door,
then press and hold the
Power Scrub and
Normal buttons for 3
seconds.
INDICATOR
•Child lock: Lamp will turn on
when Child Lock setting is on.
•Rinse Aid: Refill with Rinse aid
when Lamp turns on.
This program is for very heavily soiled loads
This program is for normally soiled everyday loads.
This program is for washing delicate items like glasses.
This program is for very lightly soiled loads.
This program is to wash some items loaded on the upper rack.
Normal
Rinse Only
Upper Only
Delicate
Power Scrub
Control panel may vary on some models.
4-2. Display Panel LDF 6920 Series

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DELAY START
•If you want to delay the start of
a selected program, press the
Delay Start button.
•Each press of Delay Start will
delay the start of the cycle by
one hour.
•The delay start time can be
adjusted from 1 to 12 hours in
one-hour increment.
POWER
•For operating, press this
button first for power on.
•After operating, the power
automatically switches off
for safety and economy.
•In case of an unusual Power
surge or disturbance, the
power may be automatically
turned off for safety.
CHILD LOCK
•Lock the control buttons
to prevent the settings
from being changed.
•To lock/unlock, press
Delicate and Rinse Only
buttons simultaneously
for 3 seconds with door
open.
SANITARY/
EXTRA RINSE
•Repeated pressing of the
Rinse button will select
Sanitary, Extra Rinse
or both.
•If you select the Sanitary
function, the temperature
of Heating Rinse can
reach 161。F (72℃).
•When you select Extra
Rinse, an additional
rinse cycle is added.

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4-3. TEST MODE LDF 6810/6920 Series
CHECK PROGRAM
BUTTON The number of
pushing button
Top
Display Load and Checking points Door open/ closed
Upper Only +
Time Delay +
POWER
Power Scrub
Normal
Delicate
Rinse Only
Upper Only
Rinse
Time Delay
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
Soil Level
32
33
Frequency
35
36
37
38
Temp.(*C)
3A
3b
3c
3H/U5
11
22
33
44
55
66
Soil Sensor
Wash Pump
Drain Pump
Inlet Valve
Dispenser
Heater
(for 10 sec)
Fan
Thermistor
Lower Nozzle
(VARIO)
Upper Nozzle
(VARIO)
Wash-Drain-
Water Supply
Auto-Off
Child Lock + Rinse Aid
Sanitary-Extra
Power Scrub +
Normal + Delicate
Rinse Only +
Upper Only
Rinse Aid
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
Closed
Both
Closed
Closed
Closed
Closed
Both
Closed
Closed
Closed
Closed

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5. PARTS NAME
Control Panel
Door Handle
Front Cover
Lower Cover
Leveling Foot
Base
Top Spray Arm
Upper Spray Arm
Lower Spray Arm
Detergent & Rinse Aid Dispenser
Vapor Vent Cover
Upper Rack
Cutlery Basket
Lower Rack
Top Display
Power Button
The appearance and specifications may be varied without notice according to localities.
5-3. LDF 6810 Series
INSTALL BRACKET WOOD SCREW