How it Works
LG
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LD-4080WB
Service Manual
43 pgs2.01 Mb0

LG LD-4080W, LD-4080T, LD-4080WB, LD-4080TB, LD-4080WU Service Manual

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P/No. : 3828ED3001Y
CONTENTS
1. CAUTION......................................................................................................................... 4
2. SPECIFICATIONS ........................................................................................................... 5
3. FEATURES & TECHNICAL EXPLANATION................................................................... 6
4. PARTS NAME.................................................................................................................. 9
6. PROGRAM CHART (SCHEMATIC DIAGRAM) ............................................................ 11
7-1. FULL DISASSEMBLE .......................................................................................... 12
7-2. DISASSEMBLE C-BASE ASSEMBLY ................................................................. 19
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 ...................................................................................................... 33
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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
ITEM
Rated Voltage / Frequency AC 220V/50Hz AC 230V/50Hz AC 240V/50Hz Installation Free Standing / Built-Under / Built-In Place Settings 14 Product Dimension(mm) Product Weight(Kg) 56 / 50 / 48 Door Colour White / STS Tub Material Stainless Steel Control Electronic Rated Power(Watt) 2,210 Heater Power(Watt) 2,100 Programs 6 Upper Rack Position Adjustable Lower Rack 100% Fold down Water Consumption(ℓ) 15 (Eco)
600(W)× 600(D)× 850(H) / 598(W)× 576(D)× 817(H) / 598(W)× 562(D)× 817(H)
SPECIFICATION
Power Consumption (kWh) 1.05 (Eco) Operating Time (min) Except Drying : 116(Except Drying):Economy 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) 0.5 ~ 8
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3. FEATURES & TECHNICAL EXPLANATION
3-1 New Technology Introduction 3-1-1. High Temperature Rinsing
• During the high temp. Rinse course, water temperature in an dishwasher reaches 77°C, considerably higher than the average rinse temperature in conventional dishwashers(65°C). This is how Rinse 77°C can eliminate some bacteria such as salmonella.
3-1-2. Turbo Spray System
• Turbo Spray System is elaborately designed to achieve a more powerful and efficient wash. You can see the excellent 3 rotating spray arm with 5 directional waterjet.
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3-2. Display Panel
CHILD
LOCK
• Used to lock or unlock the control buttons to prevent all the setting from being changed by a child.
• For locking / unlocking, press Auto and Quick button simultaneously.
PROGRAM
• When you want to select program, press each button.
SPRAY
INTENSITY
• With each press, the level of water jet is changed to “Strong”, “Medium”, and “Soft”.
TIME DELAY
• If you want to delay the start of selected program, press this button before start.
• Pressing the delay time will increase time by 1 hour.
• The delay start time can be adjusted from 1 hour to 19 hours.
EXTRA HOT
/ RINSE+
• With each press, 77℃ extra hot, Rinse+, 77℃ extra hot & Rinse+ is repeated.
HALF LOAD
• In case of small load, use upper or lower rack only to save energy .
• With each press, can select upper or lower rack only .
• In case you don’t select this button, the machine always works vario washing, which operate upper and lower spray arm alternately .
BEEP ON / OFF
• The dishwasher must be switched off.
• The beep on/off function can be set by pressing the Half Load and Power button simultaneously for seconds, then a “on” will appear in the time display.
• To change the setting, press the Half Load button.
• The beep on/off function is automatically canceled when power failure occur.
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POWER
• For operating, press this button first for power on.
• After operating, this button automatically switches off for safety and energy saving.
• In case of irregular surge disturbances to the machine, the power may be automatically turned off for safety.
3.3 TEST MODE
CHECK PROGRAM(START IN THE STATE OF THE CLOSED DOOR)
BUTTON
Intensive+Auto +POWER S/W
Intensive KEY Auto KEY Eco KEY Gentle KEY Quick KEY Pre-Wash KEY Spray KEY Rinse KEY Time Delay KEY Half Load KEY
The number of Pushing button
1 TIME 1 TIME
1 TIME 1 TIME 1 TIME 1 TIME 55 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
DISPLAY Load and Checking Points DOOR
n0 11
22 33 44
66 77 88 99 n1 n2 n3 n4 n5 n6 n7 n8 n9
Temperature
11 12 13
All LEDs are Lighting not concerned
Spray Intensity “Strong”LED is Lighting
Spray Intensity “Medium”LED is Lighting
Spray Intensity “Soft”LED is Lighting
Extra Hot LED is Lighting
Rinse + LED is Lighting
Child lock LED ( ) is Lighting
Rinse refill LED ( ) is Lighting
none
Half Load “Upper”LED is Lighting
Half Load “Lower”LED is Lighting
none
Washing moter
Drain Pump
Inlet valve
Dispenser
Heater(for 10 sec.)
Fan Moter
none
Thermister
Lower Nozzle
Upper Nozzle
AUTO OFF S/W
not concerned
not concerned
not concerned
not concerned
not concerned
not concerned
not concerned
not concerned
not concerned
not concerned
not concerned
closed
closed
closed
closed
closed
closed
closed
not concerned
closed
closed
not concerned
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4. PARTS NAME
1. Control Panel
2. Handle deco
3. Door Handle
4. Front Cover
5. Lower Cover
6. Side Cabinet deco
7. Power Switch
8. Drain hose
9. Inlet Valve ASM
10. Power Cord
11. Adjust Leg
12. Upper Rack
13. Cutlery Rack
14. Detergent & Rinse Aid Dispenser
15. Vapor Vent Cover
16. Upper Spray Arm
17. Lower Spray Arm
18. Filter ASM
19. Lower Rack
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5. WIRING DIAGRAM
1. Fan dry
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6. PROGRAM CHART(SCHEMATIC DIAGRAM)
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7. HOW TO DISASSEMBLE
BEFORE DISASSEMBLING THE DISHWASHER ;
1) Remove the plug 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) In case of the water softner assembly model, open the water softner cap to flow out the water to sump and drain to avoid the floor wet.
6) If necessary, remove the inlet hose and drain hose to avoid the hose damages.
7) Prepare some towels to avoid floor wet by the water left in the dishwasher.
7-1. FULL DISASSEMBLE
1. Top Table
1) Remove the rear 2 screws.
2) Pull and lift the top table.
2. Low Cover
3. Side deco-R/L
1) Side deco-R Remove 1 screw.
2) Side deco-L Remove 1 screw.
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4. Cabinet-R/L
1) Cabinet-R Remove front 3 screws. Remove rear 3 screws.
2) Cabinet-L Remove front 3 screws. Remove rear 3 screws.
5. Balance weight
1) Remove side 4 screws.
2) Lift the balance weight.
6. Door Assembly
1) Front Cover
Open the door. Remove 4 screws(long Type, stainless). Remove 6 screws(stainless). Close the door slowly and remove front
cover downwards.
2) Control Panel Assembly
Open the door. Remove 2 screws(stainless). Remove wire connection. Be sure the wiring should not be
changed in reassembling. Remove 3 screws for Latch assembly Remove 7 screws for Controller.
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3) Fan(Not on all models)
Inner Cover
Fan
Air Duct
Out Cover
Detergent Dispenser
Door Liner
Door Bracket
Open the door. Remove the wire connections. Remove the outer cover by removing 1
screw. Remove 2 fixing screws inside and turn
the Inner Cover counterclockwise.
4) Detergent Dispenser
Close the door. Remove the wire connections. Remove 6 screws with brackets.
5) Door Spring (Right & Left)
Push the Spring upwards and take it off from the Frame.
Be careful not to be injured by the sharp edge of Tub.
Take the Hinge Link off from the Hinge.
6) Door Liner
Open the door. Remove 4 screws. Do not use other screws for assembling.
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