1. Manuals
  2. Brands
  3. LG Manuals
  4. Dishwasher
  5. LD-2120WHU
  6. Service manual

LG LD-2120WHU Service Manual

Hide thumbs Also See for LD-2120WHU:
Table of Contents

Advertisement

Quick Links

See also: Owner's Manual
DISHWASHER
SERVICE MANUAL
NOTE
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY
FOR SAFETY AND CORRECT SERVICES.
MODEL : LD-2120W(M)HU
LD-2140W(M)HU
LD-2143W(T)HU

Advertisement

Table of Contents
loading

Related Manuals for LG LD-2120WHU

Summary of Contents for LG LD-2120WHU

  • Page 1 DISHWASHER SERVICE MANUAL NOTE BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES. MODEL : LD-2120W(M)HU LD-2140W(M)HU LD-2143W(T)HU...

  • Page 2: Table Of Contents

    CONTENTS 1. CAUTION......................... 4 2. SPECIFICATIONS ......................5 3. FEATURES & TECHNICAL EXPLANATION ..............6 4. PARTS NAME ........................ 10 5. WIRING DIAGRAM ...................... 11 6. PROGRAM CHART (SCHEMATIC DIAGRAM) ............12 7. HOW TO DISASSEMBLE .................... 13 8. TROUBLE SHOOTING METHODS ................23 A.

  • Page 3: Caution

    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.

  • Page 4: Specifications

    2. SPECIFICATION SPECIFICATION ITEM Rated Voltage / Frequency AC 230V/50Hz Installation Built-under Place Settings Product Dimension(mm) 598(W) 580(D) 817(H) Product Weight(Kg) Door Colour White / Silver / Titanium Tub Material Stainless Steel Control Electronic Rated Power(Watt) 2,210 Heater Power(Watt) 2,100 Programs 212 series : 4 / 214 series : 5 Upper Rack Position...

  • Page 5: Features & Technical Explanation

    3. FEATURES & TECHNICAL EXPLANATION 3-1 New Technology Introduction 3-1-1. High Temperature Rinsing (LD-213/214 series only) • 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.

  • Page 6: Display Panel

    3-2. Display Panel 3-2-1. LD-212 Series TIME LEFT DELAY START INDICATOR • Before starting, the display window shows the running time of • If you want to delay • Refill with the selected program. the start of selected special salt •...

  • Page 7: Ld-214 Series

    3-2-2. LD-214 Series DELAY INDICA TIME LEFT POWER START • Before starting, the display window shows the running time of • If you want to • Refill • For operating, press the selected program. delay the start of with this button first for •...
  • Page 8 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 Auto + Quick + 1 TIME n : 0H All LEDs are lighting POWER S/W Half Load KEY 1 TIME 11 : 11 All LEDs are lighting...

  • Page 9: Parts Name

    4. PARTS NAME 1. Control Panel 10. Adjust Leg 11. Upper Rack 2. Door Handle 12. Cutlery Rack 3. Front Cover 13. Detergent & Rinse Aid Dispenser 4. Lower Cover 14. Vapor Vent Cover 5. Process Monitor 15. Upper Spray Arm 6.

  • Page 10: Wiring Diagram

    5. WIRING DIAGRAM 1. LD-212 Series CONTROLLER Tap Relay No Com 2 3 4 5 6 1 2 3 4 5 6 7 8 VT WH YL BK WASH PUMP DOOR 1 2 3 1 2 3 VARIO 1 2 3 1 2 3 BL RD FLOW...

  • Page 11: Program Chart(Schematic Diagram)

    6. PROGRAM CHART(SCHEMATIC DIAGRAM) Program chart (LD-212 Series) Wash Rinse Finish Program Pre Wash Main Wash Rinse 1 Rinse 2 Rinse 3 Heating Rinse Drain A Drain C Drain D Drain E Drain A Drain A Drain A Drain B Auto(Ⅰ) Auto(Ⅱ) Auto(Ⅲ)

  • Page 12: 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) 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.

  • Page 13: Door Assembly

    4. Balance weight 1) Remove side 4 screws. 2) Lift the balance weight. 5. Door Assembly 1) Front Cover Open the door. Remove 6 screws(stainless). Close the door slowly and remove front cover downwards. 2) Control Panel Assembly Open the door. Remove 4 screws(stainless).
  • Page 14 3) Fan Open the door. Remove the air duct. Cover Remove the wire connections. Detergent Inner Remove the outer cover by removing 1 Dispenser Cover screw. Remove 2 fixing screws inside and turn the Inner Cover counterclockwise. Door Liner 4) Detergent Dispenser Close the door.

  • Page 15: Tub Assembly

    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 16 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. Turn the softner cap and nut counter- clockwise. Remove 4 screws for sump holder . Remove side 8 screws.
  • Page 17 10. C-Base Assembly 1) Remove the screw which tighten washing motor and base. 2) Lift them upward. Be careful not to wet the floor by the water left in the sump. 3) Pull out the float switch with pressing downward softly.(not on all models) 4) Detach the washing motor and heater assembly by pulling opposite direction to sump.
  • Page 18 8) Power cord assembly Turn the power cord assembly 90º and take it off. 9) Aquastop(Not on all models) Press the holder hook as shown in figure. Pull the hose assembly. 10) Drain Hose Press the rear side hook. Pull the holder forward. Pull the holder upward.
  • Page 19 7-2. DISASSEMBLE C-BASE ASSEMBLY Be careful not to be injured by the sharp edge of tub. 1. Top Plate See 7-1. 1. (Page 16) 2. Low Cover See 7-1. 2. (Page 16) 3. Cabinet-R/L See 7-1. 3. (Page 16) 4. Air Guide Disconnect 3 hoses assembly.
  • Page 20 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 21 4) Disconnect wire from the inlet valve or Aquastop 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. you may refer to 7-1. 10. 2)~10) (Page 20~24) Don’t disassemble sump by 7-2.

  • Page 22: 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 23: Error Message

    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 Replace the sensor assembly. The Sensor Assembly is troubled. Excessive water is sup- The Controller is troubled.

  • Page 24: 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 25 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 26 Washing Results are not Satisfactory After washing, are there still Reduce the amount of Rinse-Aid White deposits or streaks on (for Streak) the dishes? Does salt refill lamp blink? (Refill salt) 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 27 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.) - 28 -...

  • Page 28: 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 29 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 30 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 31 Drain Hose Extension Drain Hose extension kits are available from through your local service centre. Extend drain Hose as shown below. 200 mm Max. Sink Copper pipe fl 20mm flared at drain nose and other end if required. Use the couplings for connections when you extend drain hose.

  • Page 32: Exploded View

    10. EXPLODED VIEW LD-214 Series LD-2120 Series E008 E009 E011 E007 E006 - 33 -...
  • Page 33 LD-212 Series EXPLODED VIEW A001 F008 A020 A050 A010 Upper Rack Lower Rack A090 A080 A146 A147 A145 A142 A152 A150 A140 A110 A070 A060 - 34 -...
  • Page 34 LD-2140 Series EXPLODED VIEW A001 A007 F008 A006 A020 A050 A010 A090 A146 A147 A080 A156 A142 A145 A140 A155 A070 A110 E006 A150 A060 - 35 -...
  • Page 35 LD-2143 Series EXPLODED VIEW A001 A007 F008 A006 A020 A050 A010 Upper Rack Lower Rack A149 A154 A147 A159 A090 A144 A146 A147 A157 A156 A080 A102 A101 A155 A110 A101 A103 A145 A102 A103 A146 A142 A140 A150 A070 A060 - 36 -...
  • Page 36 EXPLODED VIEW - TUB ASSEMBLY F040 F060 F050 F011 A007 F013 F022 A006 F110 F171 F113 F117 F111 F112 F143 F004 F144 F011 F191 F132 F182 F183 F181 F210 F013 F113 F117 F111 F118 - 37 -...
  • Page 37 LD-212 Series EXPLODED VIEW - PANEL / DOOR ASSEMBLY K260 K212 K200 K251 K252 K262 K203 K209 K201 K010 K002 K122 K123 K001 F142 K101 F141 K003 K124 K110 K121 F174 - 38 -...
  • Page 38 LD-214 Series EXPLODED VIEW - PANEL / DOOR ASSEMBLY K260 K212 K208 K251 K252 K262 K209 K203 K216 K201 K010 K002 K122 K123 K001 F142 K101 F141 K003 K124 K110 K121 F174 - 39 -...
  • Page 39 LD-212 Series EXPLODED VIEW - BASE ASSEMBLY F036 F037 M230 F035 F031 F034 A130 A131 F032 A276 M250 M023 A030 M280 M270 M290 A045 A040 M260 - 40 -...
  • Page 40 LD-214 Series EXPLODED VIEW - BASE ASSEMBLY F036 F037 M230 F035 F031 F034 A130 A131 F032 A276 A160 M250 M023 A030 M280 M270 M290 A045 A040 M260 - 41 -...
  • Page 41 EXPLODED VIEW - SUMP ASSEMBLY M001 M072 M073 M070 M071 M074 A120 M005 M006 M024 M026 M028 M090 M025 M031 M080 M083 M086 M010 M087 M027 M051 M029 M008 M018 M061 M060 M002 M062 - 42 -...
  • Page 42 MEMO - 43 - - 43 -...
  • Page 43 P/No. : 3828DD3007G...

This manual is also suitable for:

Ld-2140whuLd-2140wmhuLd-2143wthuLd-2143whuLd-2120wmhu

Table of Contents