LG LDF7932 Manuale utente

DISHWASHER

SERVICE MANUAL

BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY

FOR SAFETY AND CORRECT SERVICES.

NOTE

MODEL : LDF7932(WW,BB,ST)

- 3 -

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

CONTENTS

- 4 -

DISCONNECT POWER CORD BEFORE SERVICING

RECONNECT ALL GROUNDING DEVICES

IMPORTANT SAFETY NOTICE !

This service information is intended for individuals

possessing adequate backgrounds of electrical,

electronic and mechanical experience.

Any attempt to repair this appliance may result 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 !

- 5 -

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) 97lbs

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 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

- 6 -

7932 series

3. WIRING DIAGRAM

- 7 -

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

Upper

Arm

Lower

Arm

Soil Sensor

Fine Mesh

to Drain

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™

- 8 -

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 lower rack is washed

with a strong spray for hard to clean items, while the

upper rack is washed with a soft spray for more

delicate items. This provides optimum cleaning

performance for mixed loads, including fine china and

stemware. Both the strong and soft spray lights will

stay on to indicate the dishwasher is in the Dual

Intensity cycle.

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.

Control panel may vary on some models.

4-2. Display Panel LDF 7932 Series

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.

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.

•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

STRONG MEDIUM

SANITARY EXTRA RINSE

SOFT

- 9 -

CHILD LOCK

Lamp will turn on when Child Lock

setting is on.

•To lock/unlock the buttons, press SPRAY

and RINSE 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 in a two-digit display.

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 total time exceeds 99 minutes, the display

shows times in whole hours. (2H, 3H, etc.)

•If Delay Wash is selected,

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 light will stay on when the

STEAM option has been selected.

•The symbol light will blink while steam is being

injected into the dishwasher.

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.

DISPLAY AREA

- 10 -

4-3. TEST MODE LDF 7932 Series

CHECK PROGRAM

BUTTON The number of

pushing button

Top

Display Load and Checking points Door open/

closed

Spray + Rinse +

POWER

Power Scrub

Normal

Dual Wash

Quick Wash

Steam Delicate

Steam Fresh

Spray

Rinse

Steam

Delay start

Normal water level : 270 ~ 275

Pure water : more than 130

H: High water level / L: Low water level

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( )



Frequency

Sump Temp( )



Soil level

Steam generator

Water level

3H U0

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 are lighting Both

All LEDs are lighting

Both

Closed

Both

Closed

Both

Closed

Both

Closed

※Steam Demo mode : Steam + Power

- 11 -

5. PARTS NAME

11 17

CONTROL PANEL

DOOR HANDLE

FRONT COVER

LOWER COVER

LEVELING FEET

FRONT DISPLAY (SignaLight™)

BASE

TOP SPRAY ARM

UPPER SPRAY ARM

STEAM NOZZLE

LOWER SPRAY ARM

DETERGENT AND RINSE AID

DISPENSER

DRYING VENT COVER

UPPER RACK

SILVERWARE BASKET

LOWER RACK

TOP DISPLAY

POWER BUTTON

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

5-3. LDF 7932 Series

INSTALL BRACKET WOOD SCREW

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