LG LDF9932 User Manual

DISHWASHER

SERVICE MANUAL

NOTE

BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES.

MODEL : LDF9932(WW,BB,ST)

CONTENTS

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. STEAM GENERATOR ERROR MESSAGE............................................................ 24

C. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM .......................................... 25

9. INSTALLATION INSTRUCTION ................................................................................... 29

10. EXPLODED VIEW .......................................................................................................36

- 3 -

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.

- 4 -

2. 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"

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

Upper Rack Position Adjustable

Lower Rack 50% Fold down

Water Consumption

SPECIFICATION

10-26 (Normal)

Power Consumption(kWh/year) 285-310

Operating Time (min) 97-124 (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)

- 5 -

3. WIRING DIAGRAM

9932 series

- 6 -

4. FEATURES & TECHNICAL EXPLANATION

4-1. Product Features

LARGE CAPACITY

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.

SLIM DIRECT MOTOR™

The new Slim Direct Motor™ is inverter-

controlled. Wash power is controlled based on cycle selection. It also offers high energy efficiency to minimize energy use.

HYBRID DRYING SYSTEM

This system effectively dries dishes without the

use of a heating element that would increase energy consumption.

VARIO 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.

SOFT FOOD GRINDER AND SELF-CLEANING FILTER

For best wash results, your LG dishwasher has

a built-in soft food grinder and a selfcleaning filter. The grinder grinds up soft food and residue into small particles that can be caught in the filter and washed down the

drain. The self-cleaning filter system continuously cleans the wash water as it circulates to separate any residue from the wash water. All dirt and residue is easily washed down the drain.

LIGHT TOUCH BUTTONS AND BLUE LCD

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.

STEAM WASHING

Steam technology provides better cleaning

performance than regular wash systems. Steam is the most energy efficient gentle care for your finest china and stemware.

REMOVABLE CUTLERY RACK

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.

- 7 -

4-2. Display Panel LDF 7932 Series

Control panel may vary on some models.

CYCLES

Press the cycle that corresponds to your desired wash cycle.

POWER SCRUB

This cycle is for very heavily soiled dishes.

NORMAL

This cycle is for normally soiled, everyday loads.

DUAL INTENSITY

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. How To Use Dual Intensity

1. Press and hold the SPRAY button for three seconds until

the

UPPER light begins to blink.

2. While the UPPER light is blinking, press the SPRAY

button until the desired intensity for the upper rack is selected.

3. Press the and use the intensity.

4. Selections can be cancelled by selecting any cycle except

HALF LOAD button to switch to the lower rack

SPRAY button to adjust to the desired

QUICK WASH

This is a shortened cycle that is perfect for recently used or lightly soiled loads.

STEAM DELICATE

This cycle adds the gentle power of steam to boost the cleaning power of the delicate cycle. The cycle is perfect for effectively cleaning delicate items like fine china or stemware.

STEAM FRESH

This cycle can be used to freshen up dishes that may have been stored or not used for a long time.

CHIME ON/OFF

To enable or disable the chime, press and hold the Quick Wash and Rinse buttons for 2 seconds.

RINSE ONLY

This cycle is a quick rinse for dishes that will not be washed immediately. No detergent should be used.

To select the Rinse Only cycle, press the Power button; then press the Rinse button once without pressing any other cycle buttons.

NOTE: If a main cycle has been selected, the Rinse Only cycle will not be available without first shutting the power off.

CANCEL

To cancel a running cycle, open the door and then press and hold the Dual Intensity and Quick Wash buttons together for 3 seconds. The drain pump will be activated and the cycle will be cancelled.

CYCLE OPTIONS AND DISPLAY

Press the desired cycle option buttons to select and set any of the dishwasher’s options described below. The display will show the selected cycle times and cycle options.

SPRAY (INTENSITY)

Repeated pressing of the Spray button will select the desired spray. The strong, medium, or soft light will show in the top left portion of the display.

Soft ( ), Medium ( ), Strong ( )

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.

EXTRA RINSE( ), SANITARY( )

- 8 -

3 4

• If you select the Sanitary feature, the Sanitary light

will blink until the water is heated to the sanitary temperature level*. Once the sanitary temperature level is reached, the light will stay on to indicate that the sanitary temperature has been reached.

*NOTE: This high-temperature rinse sanitizes dishware and glassware in accordance with NSF/ANSI Standard 184 for residential dishwashers. Certified dishwashers are not intended for licensed food establishments.

• When you select Extra Rinse, an additional

rinse cycle is added.

• Rinse Only is a wash cycle described on

the previous page.

CHILD LOCK

Lamp will turn on when Child Lock

setting is on.

• To lock/unlock the buttons, press and hold the

Delicate and Rinse Only Buttons simultaneously for 3 seconds with the door open.

• Lock the control buttons during cycle operation to

prevent settings from being changed.

RINSE AID

Refill with rinse aid when the lamp turns on.

DIGITAL DISPLAY

The Digital Display on the control panel shows the estimated cycle and

option times. 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.

NOTES:

• The estimated time shown in the display does not include delay times for heating water, etc.

• If Delay Wash is selected, the display shows the delay time in hours.

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 berween upper rack only and lower rack only.

• If Half Load is not pressed, the dishwasher will run normally, with upper and lower spray arms operating alternately.

DELAY START

• To delay the start of a selected cycle, press the Delay Start button.

• Each time Delay Start is pressed will delay the start of the cycle by one additional hour.

• The delay start time can be set from 1 to 12 hours in one-hour increments.

STEAM

• Press the Steam button to add steam to a selected cycle.

• The Steam symbol will be lighted on when the STEAM option has been selected.

• The steam symbol will blink while steam is being injected into the dishwasher.

wWARNING

Steam can cause burns. Use caution in the area of the steam nozzle on the left side of the dishwaher if the door is opened during the steam portion of a cycle. Contact with the steam or the steam nozzle can cause burns.

POWER

• Pressing the Power button turns on power to the controls.

• After the cycle is complete, the power

automatically turns off for safety and economy.

• If there is a power surge, power outage,

or disruption of any kind, the power will be automatically turned off for safety, and the cycle will need to be restarted.

- 9 -

4-3. TEST MODE LDF 7932 Series

CHECK PROGRAM

BUTTON

STEAM+RINSE+ POWER Buttonn

POWER SCRUB

NORMAL

DUAL INTENSITY

QUICK WASH

STEAM DELICATE

STEAM FRESH

STEAM

RINSE

SPRAY

HALF LOAD

DELAY START

The number of pushing button

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

To p

Display

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

Temp(

Frequency

Sump Temp(

Soil level

0n:3b/Motor RPM

Steam generator

Water level

(RPM,Frequency)

)

0n:H1

0n:33

0n:35

0n:36

0n:37

0n:38

0n:3d

0n:3E

0n:3F

Load and Checking points

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

Water level

Lower Nozzle

(Vario)

Upper Nozzle

(Vario)

W/Pump+Vario+

Heater (for 1min)

LED lightingLoad

All LEDs are lighting

All LEDs

Door open/

closed

Either

Closed

Either

Closed

Either

Closed

Either

Closed

Remark

See Test 3

See Test 4

See Test 5

See Test 6

See Test 7

See Test 1

See Test 8

16 TIME

Normal water level : 270 ~ 275 Pure water : more than 130 H: High water level / L: Low water level

- 10 -

Auto-Off

Closed

Steam Demo mode : Steam + Power

5. PARTS NAME

5-3. LDF 9932 Series

CONTROL PANEL

DOOR HANDLE

STEAM NOZZLE

LOWER SPRAY ARM

FRONT COVER

LOWER COVER

LEVELING FEET

FRONT DISPLAY

BASE

TOP SPRAY ARM

UPPER SPRAY ARM

(SignaLight™)

DETERGENT AND RINSE AID

DISPENSER

DRYING VENT COVER

TUB LAMP

CUTLERY RACK

UPPER RACK

SILVERWARE BASKET

LOWER RACK

TOP DISPLAY

POWER BUTTON

(Illumitub™)

INSTALL BRACKET WOOD SCREW

The appearance and specifications may be varied without notice according to localities.

- 11 -

6. PROGRAM CHART(SCHEMATIC DIAGRAM)

Program chart

LDF 9932 Series

- 12 -

7. HOW TO DISASSEMBLE

Lower Cover

Tub Felt

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.

2. Tub Felt

1) Tub Felt

- 13 -- 13 -

Control Panel Front Cover

3-1. Door Assembly

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.

Controller

Latch Assembly

Controller

- 14 -- 14 -

+ 30 hidden pages