LG LDF7810, LDF6811, LDS5811 Schematic

DISHWASHER SERVICE MANUAL

NOTE

BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY

FOR SAFETY AND CORRECT SERVICES.

MODEL : LDF6810WW / LDF6810BB / LDF6810ST MODEL : LDF7810WW / LDF7810BB / LDF7810ST MODEL : LDF7811WW / LDF7811BB / LDF7811ST LDS5811WW / LDS5811BB / LDS5811ST

CONTENTS

1. CAUTION.........................................................................................................................		4
2. SPECIFICATIONS ...........................................................................................................		5
3.	WIRING DIAGRAM........................................................................................................	6
4. FEATURES & TECHNICAL EXPLANATION ...................................................................		7
5. PARTS NAME ................................................................................................................		16
6.	PROGRAM CHART .....................................................................................................	19
7.	HOW TO DISASSEMBLE ............................................................................................	21
8.	TROUBLE SHOOTING METHODS..............................................................................	30
	A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE...........	30
	B. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM...........................................	32
9.	INSTALLATION INSTRUCTION ...................................................................................	36
10. EXPLODED VIEW .......................................................................................................		43
11. REPLACEMENT PART LIST ........................................................................................		52

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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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2. SPECIFICATION

				SPECIFICATION
	ITEM
Rated Voltage / Frequency				AC 120V/60Hz
Installation				Built-In
Place Settings			16
Product Dimension(in)			23 7/8 x 25 x 33 7/8
Product Weight(lbs)			7811/ 7810 series : 115lbs, 5811/ 6810 series : 110lbs
Door Color			White, Black, Stainless
Tub Material				Stainless Steel
Control				Electronic
Rated Power(Watt)			1,350
Heater Power(Watt)			1,200
Programs			7811/ 7810 series : 6, 6810 series : 5
Upper Rack Position			7811/ 7810 series : Adjustable, 5811/ 6810 series : manual
Lower Rack				50% Fold down
Water Consumption				21-30 (Normal)
Power Consumption(kWh/year)			352~370
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)

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3. WIRING DIAGRAM

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4. FEATURES & TECHNICAL EXPLANATION

4-1. Product Features

Ultra Big Capacity

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.

Slim Direct Inverter Motor

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.

Hybrid Drying System

Moist

Air

Dry

Air

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.

Mixed

Air

Vario Spray System

to Upper Arm

to Lower Arm

Because of alternating water spray between the Upper and Lower Rack, the water pressure allows superior performance and reduced consumption of water and electricity.

Self Cleaning Filter

Soil Sensor

to Drain

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.

Fine Mesh

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4-2. Display Panel

4-2-1. LDF 7811/7810 Series

Control panel may vary on some models.

PROGRAM

• Press the program that corresponds to your desired wash cycle.

INDICATOR

•Child lock: Lamp will turn on when Child Lock setting is on.

•Rinse Aid: Refill with Rinse aid when Lamp turns on.

Soak

Power Scrub

Normal

Delicate

Quick Wash

Rinse Only

This program is for very heavily soiled loads including pots, pans and casserole dishes which may have dry food residue.

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 that quick wash of lightly soiled recently used dishes and cutlery.

This program is for very lightly soiled loads.

CANCEL

•To cancel a running program, open the door, then press and hold the

Normal and Delicate buttons for 3 seconds.

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SPRAY (INTENSITY)

•Repeated pressing of the Spray button will select

Strong, Medium or Soft.

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 24 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

Spray and Rinse 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 (72).

•When you select Extra Rinse, an additional rinse cycle is added.

HALF LOAD

•In case of a small load, use the upper or lower rack only to save energy.

•Each press of the Half Load button cycles between upper rack only and lower rack only.

•If you don't press Half Load, the dishwasher runs normally, i.e, operation of upper and lower spray arm alternating periodically.

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4-2-2. LDF 5811 Series

SPRAY (INTENSITY)

•Repeated pressing of the Spray button will select

Strong, Medium or Soft.

CHILD LOCK

SANITARY/

HALF LOAD

EXTRA RINSE

•Lock the control buttons to prevent the settings from being changed.

•To lock/unlock, press

Spray and Rinse buttons simultaneously for 3 seconds.

•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 (72).

•When you select Extra Rinse, an additional rinse cycle is added.

•In case of a small load, use the upper or lower rack only to save energy.

•Each press of the Half Load button cycles between upper rack only and lower rack only.

•If you don't press Half Load, the dishwasher runs normally, i.e, operation of upper and lower spray arm alternating periodically.

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INDICATOR

•Child lock: Lamp will turn on when Child Lock setting is on.

•Rinse Aid: Refill with Rinse aid when Lamp turns on.

PROCESSING INDICATOR

•Current program phase is indicated.

TIME LEFT

•Before starting, the display window shows the running time of the selected program.

•After starting, the display window shows the remaining time.

•If the dishwasher has a trouble, the trouble type is displayed.

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.

CANCEL		PROGRAM		POWER
• To cancel a		• Press the		• For operating, press this
running program,		program that		button first for power on.
press and hold		corresponds to		• After operating, the power
the Normal and		your desired		automatically switches off
Delicate buttons		wash cycle.		for safety and economy.
for 3 seconds.				• In case of an unusual Power
				surge or disturbance, the
				power may be automatically
				turned off for safety.

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4-2-3. LDF 6810 Series

Control panel may vary on some models.

PROGRAM

• Press the program that corresponds to your desired wash cycle.

INDICATOR

•Child lock: Lamp will turn on when Child Lock setting is on.

•Rinse Aid: Refill with Rinse aid when Lamp turns on.

Power Scrub

Normal

Delicate

Rinse Only

Upper Only

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.

CANCEL

•To cancel a running program, open the door, then press and hold the

Power Scrub and

Normal buttons for 3 seconds.

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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.

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 (72).

•When you select Extra Rinse, an additional rinse cycle is added.

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.

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4-3. TEST MODE

4-3-1. LDF 7811/7810 LDS 5811 Series

CHECK PROGRAM

	BUTTON	The number of	Top	Front Display	Load and Checking points		Door open/
		pushing button	Display				closed
	Rinse + Time Delay +	1 TIME	3H/U2	n : 3H/U:02	All LEDs are lighting		Both
	POWER S/W
	Soak	1 TIME	11	1 : 11	All LEDs are lighting		Both
	Power Scrub	1 TIME	22	2 : 22	All LEDs are lighting		Both
	Normal	1 TIME	33	3 : 33	All LEDs are lighting		Both
	Delicate	1 TIME	44	4 : 44	All LEDs are lighting		Both
	Quick Wash	1 TIME	55	5 : 55	All LEDs are lighting		Both
	Rinse Only	1 TIME	66	6 : 66	All LEDs are lighting		Both
	Supply	1 TIME	77	7 : 77	Strong/Medium/Soft		Both
	Rinse	1 TIME	88	8 : 88	Sanitary-Extra Rinse		Both
	Half Load	1 TIME	99	9 : 99	Upper-Lower		Both
		1 TIME	31	Soil Level	Soil Sensor	Delay Start	Both
		2 TIME	32	n : 02	Wash Pump	Child Lock +	Closed
						Rinse Aid
		3 TIME	33	n : 03	Drain Pump	Wash	Closed
		4 TIME	34	Frequency	Inlet Valve	Rinse	Both
		5 TIME	35	n : 05	Dispenser	Dry	Closed
		6 TIME	36	n : 06	Heater	Wash-Rinse-Dry	Closed
					(for 10 sec)
	Time Delay	7 TIME	37	n : 07	Fan	Strong-Soft	Closed
		8 TIME	38	n : 08		Sanitary-Extra
		9 TIME	39	Temp. ( )	Thermistor	Upper-Lower	Both
		10 TIME	3A	n : 0A	Lower Nozzle	Soak-Normal	Closed
					(VARIO)
		11 TIME	3b	n : 0b	Upper Nozzle	Delicate-Rinse	Closed
					(VARIO)	Only
		12 TIME	3c	n : 0c	Wash-Drain-	Rinse Aid	Closed
					Water Supply
		13 TIME			Auto-Off		Closed
	Normal Water Level : 315				Supply water before operating the Test Mode.
	Pure Water : more than 229

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4-3-2. LDF 6810 Series

CHECK PROGRAM

	BUTTON	The number of	Top	Load and Checking points		Door open/
		pushing button	Display			closed
	Upper Only +
	Time Delay +	1 TIME	3H/U2	All LEDs are lighting		Both
	POWER
	Power Scrub	1 TIME	11	All LEDs are lighting		Both
	Normal	1 TIME	22	All LEDs are lighting		Both
	Delicate	1 TIME	33	All LEDs are lighting		Both
	Rinse Only	1 TIME	44	All LEDs are lighting		Both
	Upper Only	1 TIME	55	All LEDs are lighting		Both
						Both
	Rinse	1 TIME	66	All LEDs are lighting		Both
						Both
	Time Delay	1 TIME	31			Both
		2 TIME	32	Wash Pump		Closed
		3 TIME	33	Drain Pump		Both
		4 TIME	34	Inlet Valve		Closed
		5 TIME	35	Dispenser		Closed
		6 TIME	36	Heater		Closed
				(for 10 sec)
		7 TIME	37	Fan		Closed
		8 TIME	38		Child Lock + Rinse Aid
		9 TIME	39	Thermistor	Sanitary-Extra	Both
		10 TIME	3A	Lower Nozzle	Power Scrub +	Closed
				(VARIO)	Normal + Delicate
		11 TIME	3b	Upper Nozzle	Rinse Only +	Closed
				(VARIO)	Upper Only
		12 TIME	3c	Wash-Drain-	Rinse Aid	Closed
				Water Supply
		13 TIME		Auto-Off		Closed
	Normal Water Level : 295

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5. PARTS NAME

5-1. LDF 7811/7810 Series

Control Panel		Removable Tines
Front Display		Lower Spray Arm
Door Handle		Detergent & Rinse Aid Dispenser
Front Cover		Vapor Vent Cover
Lower Cover		Upper Rack
Leveling Foot		Cutlery Basket
Side Cabinet		Lower Rack
Base		Top Display
Top Spray Arm		Power Button
Upper Spray Arm

INSTALL BRACKET

WOOD SCREW

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

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5-2. LDF 5811 Series

Control Panel		Top Spray Arm
Front Display		Upper Spray Arm
Door Handle		Removable Tines
Power Button		Lower Spray Arm
Front Cover		Detergent & Rinse Aid Dispenser
Lower Cover		Vapor Vent Cover
Leveling Foot		Upper Rack
Side Cabinet		Cutlery Basket
Base		Lower Rack

INSTALL BRACKET

WOOD SCREW

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

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5-3. LDF 6810 Series

Control Panel		Lower Spray Arm
Door Handle		Detergent & Rinse Aid Dispenser
Front Cover		Vapor Vent Cover
Lower Cover		Upper Rack
Leveling Foot		Cutlery Basket
Side Cabinet		Lower Rack
Base		Top Display
Top Spray Arm		Power Button
Upper Spray Arm

INSTALL BRACKET

WOOD SCREW

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

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6. PROGRAM CHART(SCHEMATIC DIAGRAM)

6-1. LDF 7811/7810 LDS 5811 Series

S/W Off Auto

Act Thermal

Dispenser

Motor Fan

Motor Vario

Heater

Valve Inlet

Pump Drain

W/Motor

Only Rinse

Quick

Delicate

NORMAL

Scrub Power

Soak

Program

Drain

A Drain

Wash Pre

Stop

Water Supply

10

10

18

49

26

Wash

Stop

1

Drain

Wash

Drain

Wash Pre

Wash

B Drain

Drain

Water Supply

Drain

2

Water Supply

6

10

10

10

10

Wash

Stop

Drain

Wash

BDrain

WashPre

Wash

1

Drain

Wash

Drain

Water Supply

Drain

3

Water Supply

10

10

10

Wash

Stop

Drain

Wash

Drain

BDrain

WashMain

Program

Wash

Drain

Water Supply

Drain

46

49

22

60

30

63

38

65

46

Water Supply

chart

8

Wash

Stop

Drain

Wash

Drain

BDrain

Rinse

Water Supply

Wash

Drain

Drain

1

Water Supply

10

6

10

10

10

10

Rinse

Stop

30

Drain

8

Wash

CDrain

Rinse

Rinse

303 30

Drain

Drain

Water Supply

Water Supply

2

10

10

Rinse

Stop

Drain

Wash

CDrain

Heating

Drain

Drain

Water Supply

Rinse

60

20

68

26

65

20

68

26

72

30

Water Supply

Heating A

Heating B

Stop

Drain

Stop

Drain

Dry

Dry

Drain

20

30

30

30

30

Dry

D

Drain

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6-2. LDF 6810 Series

S/W Off Auto

Act Thermal

Dispenser

Motor Fan

Motor Vario

Heater

Valve Inlet

Pump Drain

W/Motor

Only Rinse

Quick

Delicate

NORMAL

Scrub Power

Program

Drain

A Drain

Wash Pre

Stop

Water Supply

10

10

18

Wash

Stop

1

Drain

Wash

Drain

Wash Pre

Wash

B Drain

Drain

Water Supply

Drain

2

Water Supply

6

10

10

10

Wash

								Stop
								Drain
								Wash	BDrain	WashPre	Wash
	1							Drain
								Wash
								Drain
								Water Supply
								Drain		3
								Water Supply
					10		10	Wash
								Stop
								Drain
								Wash
								Drain	BDrain	WashMain	Program
								Wash
								Drain
								Water Supply
								Drain
46		49	22	60	30	63	38	Water Supply			chart
	8							Wash
								Stop
								Drain
								Wash
								Drain	BDrain	Rinse
								Water Supply
								Wash
								Drain
								Drain		1
								Water Supply
10	6		10		10		10	Rinse
								Stop
30								Drain
8								Wash	CDrain	Rinse	Rinse
303 30								Drain
								Drain
								Water Supply
								Water Supply		2
							10	Rinse
								Stop
								Drain
								Wash	CDrain	Heating
								Drain
								Drain
								Water Supply		Rinse
60	20	68	26	65	20	68	26	Water Supply
								Heating A

Heating B

Stop

Drain

Stop

Drain

Dry

Dry

Drain

20

30

30

30

Dry

D

Drain

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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

Lower Felt

Lower Cover

Tub Felt

Cabinet-L

Cabinet-R

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

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