1. Manuals
  2. Brands
  3. LG Manuals
  4. Dishwasher
  5. LD-4050W
  6. Service manual

LG LD-4050W Service Manual

Lg dishwasher
Hide thumbs Also See for LD-4050W:

Advertisement

Table of Contents

See also: Service Manual
P/No. : 3828ED3001L

Advertisement

Table of Contents
loading

Related Manuals for LG LD-4050W

Summary of Contents for LG LD-4050W

  • Page 1 P/No. : 3828ED3001L...
  • Page 2 DISHWASHER SERVICE MANUAL NOTE BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES. MODEL : LD-4050W LD-14AW2, LD-14AT 2...

  • Page 3: Table Of Contents

    CONTENTS 1. CAUTION ........................... . 4 2.

  • Page 4: Caution

    CAUTION ! � DISCONNECT POWER CORD BEFORE SERVING � 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.

  • Page 5: Specifications

    2. SPECIFICATION SPECIFICATION ITEM Model LD-4050W LD-14AT2 LD-14AW2 Rated Voltage / Frequency AC 240V/50Hz AC 240V/50Hz AC 240V/50Hz Installation Free Standing / built-In Free Standing / built-In Free Standing / built-In Place Settings Product Dimension(mm) 600(W)× 600(D)× 850(H) 600(W)× 600(D)× 850(H) 600(W)×...

  • Page 6: Features & Technical Explanation

    3. FEATURES & TECHNICAL EXPLANATION 3-1 New Technology Introduction 3-1-1. Turbo Fan Drying System • Turbo fan drying system expels out hot and humid air to enhance quick and effective drying. 3-1-2. 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...
  • Page 7 LD-4050W 3-2. Display Panel RINSE / DIAL (PROGRAM & HALF LOAD TIME SAVE EXTRA HOT START / PAUSE) CHILD LOCK TIME DELAY SPRAY INTENSITY POWER - 7 -...

  • Page 8: Display Panel

    LD-14AW2 / LD-14AT2 3-2. Display Panel DELAY START POWER SWITCH TIME SAVE HALF LOAD BUTTON BUTTON • If you want to delay the • This function is • In case of small load, use • For operating, press this start of selected program, for saving time upper or lower rack only button first for power on.
  • Page 9 LD-4050W 3.3 TEST MODE CHECK PROGRAM(START IN THE STATE OF THE CLOSED DOOR) The number of BUTTON DISPLAY Load and Checking points pushing button Half Load+Time 1 TIME n : 0H All LEDs are lighting Delay+POWER S/W Rinse 1 TIME...
  • Page 10 LD-14AT2/LD-14AW2 3.3 TEST MODE CHECK PROGRAM(START IN THE STATE OF THE CLOSED DOOR) The number of BUTTON DISPLAY Load and Checking points pushing button Normal+Eco 1 TIME n : 0H All LEDs are lighting +POWER S/W Delay Start Key 1 TIME 11 : 11 All LEDs are lighting T-Save Key...

  • Page 11: Parts Name

    4. PARTS NAME LD-4050W 1. Control Panel 11. Adjust Leg 2. Vapor vent 12. Upper Rack 3. Door Handle 13. Cutlery Rack 4. Front Cover 14. Detergent & Rinse Aid Dispenser 5. Lower Cover 15. Vapor Vent Cover 6. Process Monitor 16.
  • Page 12 4. PARTS NAME LD-14AT2/LD-14AW2 1. Vapor vent 11. Adjust Leg 2. Control Panel 12. Upper Rack 3. Door Handle 13. Cutlery Rack 4. Front Cover 14. Detergent & Rinse Aid Dispenser 5. Lower Cover 15. Vapor Vent Cover 6. Process Monitor 16.

  • Page 13: Wiring Diagram

    5. WIRING DIAGRAM LD-4050W - 13 -...
  • Page 14 5. WIRING DIAGRAM LD-14AW2 LD-14AT2 - 14 -...

  • Page 15: Program Chart(Schematic Diagram)

    6. PROGRAM CHART(SCHEMATIC DIAGRAM) - 15 -...
  • Page 16 6. PROGRAM CHART(PGM TIME Flow-Default, Vario) - 16 -...

  • Page 17: How To Disassemble

    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) If necessary, remove the inlet hose and drain hose to avoid the hose damages.
  • Page 18 Remove 6 screws(stainless). Close the door slowly and remove front cover downwards. 2) Control Panel Assembly Open the door. LD-4050W Remove 4 screws(stainless). Remove wire connection. Be sure the wiring should not be changed in reassembling. Remove 3 screws for Latch assembly Remove 5 screws for Controller.
  • Page 19 Cover screw. Detergent Inner Remove 2 fixing screws inside and turn Dispenser Cover the Inner Cover counterclockwise. LD-4050W, LD-14AT2 4) Detergent Dispenser Close the door. Remove the wire connections. Door Liner Remove 6 screws with brackets. LD-14AW2 Door Bracket 5) Door Spring (Right & Left) Push the Spring upwards and take it off from the Frame.
  • Page 20 6. Base spacer Remove 4 screws. Lift the front side of dishwasher and pull the base spacer forward. 7. Tub assembly 1) Nozzle Pull up the nozzle. 2) Filter Assembly Inner filter Turn inner filter counterclockwise and lift inner filter and middle filter. Middle filter You can disassemble inner filter and Micro filter...
  • Page 21 4) Tub Turn the air guide nut counter-clockwise. (Special tool might be needed.) Be careful the rubber packing of air guide assembly should not be lost. Remove 4 screws for sump holder . Remove side 8 screws. Remove 2 Earth screw of right side. Lift tub assembly upward.
  • Page 22 5) synchronous motor Remove the 2 screws. Lift the cam upward. Be careful not to install upside down. (part number on the cam should face the motor.) 6) Vario valve Remove 4 screws and lift the cover upward. Lift the vario valve upward. 7) Capacitor Remove 1 screw.
  • Page 23 9) Noise filter Remove 1 screw. 10) Power cord assembly Turn the power cord assembly 90º and take it off. 11) Drain Hose Pull the holder forward and upward. 12) Relay Remove 2 screws. LD-4050W has no relay. - 23 -...

  • Page 24: Disassemble C-Base Assembly

    7-2. DISASSEMBLE C-BASE ASSEMBLY 1. Top Plate See 7-1. 1. (Page 17) 2. Low Cover See 7-1. 2. (Page 17) 3. Cabinet-R/L See 7-1. 3. (Page 17) 4. Air Guide Disconnect 3 hoses assembly. You need not to unscrew the air guide nut.
  • Page 25 6. Remove the side screws 1) Remove side 8 screws. 2) Remove 2 Earth screws of right side. 3) Remove 1 motor bracket screw. 4) Lift base upward slightly. (You can’t lift up base perfectly because of some parts connecting to base.) 7.
  • Page 26 4) Disconnect wire from the inlet valve. 5) Disconnect wire from the relay. Now, you can remove the base from the tub perfectly. 8. C-Base Assembly You can repair the parts in the C-Base like heater case, washing pump, drain motor etc.

  • Page 27: Trouble Shooting Methods

    8.TROUBLE SHOOTING METHODS A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE POSSIBLE CAUSE ERROR MESSAGE REMEDY FOR ERROR OCCURRENCE The Water Tap is not opened. Open the Water Tap. INLET ERROR The Inlet Hose is kinked. Repair the Inlet Hose. The Filter of inlet valve clogged a) Close the Water Tap.
  • Page 28 POSSIBLE CAUSE ERROR MESSAGE REMEDY FOR ERROR OCCURRENCE EXCESS ERROR The Inlet Valve is troubled. Replace the Inlet Valve. displayed The Air Break is troubled. Replace the air breaker. Condition The Sensor Assembly is troubled. Replace the sensor assembly. Excessive water is sup- The Controller is troubled.

  • Page 29: Trouble Diagnoses And Repair By Symptom

    B. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM No Power on when the power button pressed. • Insert the Plug Correctly. The plug is correctly inserted in the • Check the electricity is failed or not. Socket-Outlet? The Fuse or • Replace the Fuse or Circuit Breaker of house. Circuit Breaker of house is O.K? The Thermal Fuse...
  • Page 30 The Wash Pump/Motor does not run. • Close the Door Tightly. The Door is tightly • Check the Door Switch in Latch Handle. closed? The Pump/Motor is • Remove the cause of block or replace the Pump/Motor. not blocked? The circuit of Pump/ •...
  • Page 31 Washing Results are not Satisfactory After washing, are there still White deposits or streaks on ㆍ Reduce the amount of Rinse-Aid the dishes? (for Streak) After washing, are there still food soils on the dishes? Check that : - the amount of detergent Correctly used or not - Filters clogged or not.
  • Page 32 Power Button not automatically off after operation. Check the button is blocked by foreign materials. Check the Power Switch.(Replace it, if necessary.) Check the Controller.(Replace it, if necessary.) - 32 -...

  • Page 33: Installation Instruction

    9. INSTALLATION INSTRUCTION Step1: Prepare Cupboard opening 1. This dishwasher is designed to fit to the size shown as below. 2. Select a location as close to sink as possible for easy connections to water and drain lines. 3. The dishwasher should not be installed more than 3 meters from sink for proper drainage. 4.
  • Page 34 Step 2 : PREPARE ELECTRICAL WIRING CAUTION For personal safety, remove house fuse or open circuit breaker before installation. Do not use an extension cord or adapter plug with this appliance. Electrical and grounding connections must comply with the national electrical code/provincial and municipal code and/or other local codes.
  • Page 35 Step 4 : INSTALL THE DISHWASHER IN CUPBOARD 1. Before sliding the dishwasher into the cupboard opening, all necessary final height adjustment and balancing adjustment should be done using the spanner. 2. Slide the dishwasher into the cabinet opening carefully. Make sure that the drain hose inside the cabinet should not be kinked or exceeded.
  • Page 36 Step 5 : DRAIN LINE CONNECTION 1. If the end drain hose does not fit to the drain line, use a piece of rubber connector (not supplied) that must be resistant to heat and detergent and may be obtained from a plumbing shop. 2.
  • Page 37 Drain Hose Extension ■ Drain Hose extension kits are available from through your local service centre. Extend drain Hose as shown below. Step 6 : WATER SUPPLY CONNECTION 1. Connect the water supply hose to the valve behind dishwasher and the water tap as shown in figure. This dishwasher may be fed with either hot or cold water.

  • Page 38: Exploded View

    10. EXPLODED VIEW LD-4050W LD-14AT2 LD-14AW2 - 38 -...
  • Page 39 EXPLODED VIEW - 39 -...
  • Page 40 EXPLODED VIEW - TUB ASSEMBLY - 40 -...
  • Page 41 EXPLODED VIEW - SUMP ASSEMBLY - 41 -...
  • Page 42 EXPLODED VIEW - BASE ASSEMBLY - 42 -...
  • Page 43 EXPLODED VIEW - DOOR ASSEMBLY LD-4050W LD-14AT2 LD-14AW2 - 43 -...

  • Page 44: Replacement Part List

    *002 BOX, CARTON 3890EZ3314A LD-4050W 3890EZ3314A LD-14AT2 3890EZ3314A LD-14AW2 *003 MANUAL, SERVICE 3828ED3001L English A001 TOP PLATE ASSEMBLY 3301ER1001F LD-4050W, LD-14AW2 WHITE 3301ER1001C LD-14AT2 WARM SILVER A002 BLANCE WEIGHT 4866ED2003A A010 CABINET 3112FD1079R LD-4050W, LD-14AW2 WHITE 3112FD1079U LD-14AT2 PURPLE GRAY...
  • Page 45 PART NAME PART No. APPLIED MODEL SPEC&COLOR Q'ty A155 GUIDE ASSEMBLY(RIGHT) 4975ED2002C LD-4050W, LD-14AT2 A156 GUIDE ASSEMBLY(LEFT) 4975ED2002D LD-4050W, LD-14AT2 A160 FILTER ASSEMBLY(CIRC) 6201EC1004F NOISE FILTER 3W40102H A276 HOSE ASSEMBLY, INLET F011 SPRING, HINGE 4970ED4004C F013 CONNECTOR ASSEMBLY(MECH) 4933ED3002A HINGE ROPE...
  • Page 46 PART NAME PART No. APPLIED MODEL SPEC&COLOR Q'ty 3806ED1001C LD-14AW2 WHITE K203 WINDOW 3790ED1001B LD-14AT2 3790ED1001A LD-14AW2 LD-4050W K204 DECO, KNOB 3806ED3002A 3806ED2001B LD-14AT2, LD-14AW2 SILVER K205 SPONGE 3940FD4174D LD-4050W 3940FD4174C LD-14AT2, LD-14AW2 K208 PANEL, CONTROL 3720ED1002L LD-4050W WHITE, ENGLISH...
  • Page 47 MOTOR ASSEMBLY, PUMP 4681EA2001A M060 PUMP ASSEMBLY, WASHING 5859ED1001A M062 BRACKET, MOTOR 4810ED3003A M070 FILTER ASSEMBLY, STAINLESS 5231ED2001A M080 CASE ASSEMBLY 3111ED2002C LD-4050W 3111ED2002F LD-14AT2, LD-14AW2 M083 THERMISTOR ASSEMBLY 6322FD3671A M086 SWITCH, MICRO 3W40025B M087 SENSOR ASSEMBLY 6501ED2002A LD-4050W M210...

This manual is also suitable for:

Ld-14aw2Ld-14at 2

Table of Contents