LG LDS4821BB Service Manual
LG LDS4821BB - 24in Full Console Dishwasher Manual
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UPC - 048231009683
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LG LDS4821BB manual content summary:
- LG LDS4821BB | Service Manual - Page 1
DISHWASHER SERVICE MANUAL NOTE BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES. MODEL : LDS4821(WW,BB,ST) - LG LDS4821BB | Service Manual - Page 2
5. PARTS NAME ...11 6. PROGRAM CHART ...12 7. HOW TO DISASSEMBLE 13 8. TROUBLE SHOOTING METHODS 21 A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE...........21 B. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM 23 9. INSTALLATION INSTRUCTION 27 10. EXPLODED VIEW ...34 11. REPLACEMENT PART LIST - LG LDS4821BB | Service Manual - Page 3
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 - LG LDS4821BB | Service Manual - Page 4
Time (min) Fan Dry System Delay Start Function Auto-Off Power Switch Process Monitor Wash Level Racks Operating Water Pressure (Bar) SPECIFICATION AC 120V/60Hz Built-In 16 23 3/4̋x 24 5/8̋x 33 5/8̋ 89lbs White, Black, Stainless Stainless Steel Electronic 1,350 1,200 4 manual Fixed Tines 10-26 - LG LDS4821BB | Service Manual - Page 5
3. WIRING DIAGRAM LDS4821 serise -6- - LG LDS4821BB | Service Manual - Page 6
performance and reduced consumption of water and electricity. to Lower Arm ■ 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 - LG LDS4821BB | Service Manual - Page 7
normal run time for the cycle selected. • During the cycle, the estimated time remaining for the selected cycle will be displayed. � RINSE Repeated pressing of the Rinse button will select Sanitary, Extra Rinse or both. • If you select the Sanitary Function, Sanitary Light blinks when the water - LG LDS4821BB | Service Manual - Page 8
economy. • If there is an unusual Power surge or disturbance, the power will be automatically turned off for safety and the cycle will have to be started over. NOTE Only sanitary cycle have been designed to meet the requirements of performance for soil removal and sanitization efficacy. There is no - LG LDS4821BB | Service Manual - Page 9
+POWER S/W 1 TIME n : 3H/U00 All LEDs are lighting POWER SCRUB lighting All LEDs are lighting All LEDs are lighting Soil Sensor Wash Pump Drain Pump Inlet Valve Dispenser Heater (for 10 sec) Fan Thermistor Lower Nozzle(VARIO) Upper Nozzle(VARIO) Auto-Off(Wash-Drain-Water Supply) � Normal Water - LG LDS4821BB | Service Manual - Page 10
Panel � Front Display � Door Handle � Power Button � Front Cover � Lower Cover � Leveling Foot � Base � Top Spray Arm � Upper Spray Arm � Lower Spray Arm � Detergent & Rinse Aid Dispenser � Vapor Vent Cover � Upper Rack � Cutlery Basket � Lower Rack INSTALL BRACKET WOOD SCREW ※ The appearance - LG LDS4821BB | Service Manual - Page 11
Program chart 6. PROGRAM CHART(SCHEMATIC DIAGRAM) LDS 4821 Series - 12 - - LG LDS4821BB | Service Manual - Page 12
to avoid the hose damages. 6) Prepare some towels to avoid floor wet by the water left in the dishwasher. 7-1. FULL DISASSEMBLE 1. Lower Cover and Lower Felt 1) Remove the front 2 screws. 2) Remove the Inlet Hose and Power Supply Cable. Lower Cover Tub Felt 2. Tub Felt 1) Tub Felt - 13 - - LG LDS4821BB | Service Manual - Page 13
Front Cover Open the door. Remove 6 screws(stainless). 2) Control Panel Assembly Remove 8 screws(Stainless). Remove the wire connections. Be sure the wiring should not be changed in reassembling Remove the Latch assembly. Remove the Front Display. Remove 8 screws for Controller. Controller Latch - LG LDS4821BB | Service Manual - Page 14
Remove 4 screws and a earth screw for Door Bracket. Remove the wire connetions. Remove the Air Duct. Turn the Inner Cover counterclockwise. 4) Detergent Dispenser Close the door Remove the wire connections. Remove Liner Assembly Hinge Supporter 6) Door Liner Open the door. Pull the Door Liner and - LG LDS4821BB | Service Manual - Page 15
holder hook as shown in figure. 2) Remove 4 screws. Lower Frame Lead Wire Holer Lead Wire Holer Hook 5. Put the Dishwasher upside down. Drain Hose Holder 6. Drain Hose Holder 1) Press the holder hook as shown in figure. 2) Pull the Drain Hose and remove the Drain Hose Holder. Drain Hose - 16 - LG LDS4821BB | Service Manual - Page 16
Cabinet Base Base Cover 7. Base Cover 1) Remove 2 screws. 2) Pull the Base Cover out. 8. Harness & Hose Assembly 1) Remove the wiring connections. 2) Remove the Hose connections from Sump Assembly. You can see the information of Wiring Diagram at the back of Lower Cover. - 17 - - LG LDS4821BB | Service Manual - Page 17
upward. Cabinet Base Inlet Valve 10. Inlet Valve 1) You can disassemble the lnlet Valve by removing the 2 screws. Air Braker Nut Gasket 11. Air Braker Assembly 1) Disconnect the 3 hoses assembly. 2) Turn the Air Braker Nut counterclockwise. Be careful the o-ring should not be lost. Air Braker - LG LDS4821BB | Service Manual - Page 18
. Be careful not to drop the Sump Assembly to the bottom. Drain Pump 1) Heater & Drain Motor Pull the Heater out of the Sump after releasing the nut. Remove 3 screws. Heater Micro S/W Vario Motor 2) Vario Motor Remove 2 screws for Vario Motor. Pull the Vario Motor and Micro S/W. 3) Soil Sensor - LG LDS4821BB | Service Manual - Page 19
Sump Assembly, be careful not to kink, tear and take off the seals. 13. Holder Supporter, Tub Packing and Hinge Supporter Assembly. Rotate the screwdriver, after slide it into the gap between Stopper Roller and Rail to be hurt and have extra stopper rollers ready at servicing at all times) - 20 - - LG LDS4821BB | Service Manual - Page 20
Motor Water Seal leakage of Sump assembly. The height of Drain Hose connection (sink-Drain Hose) is not over 20″. Impeller of the Washing Pump is worn away. Replace the connections of Hose. Check the point of damages and repair or replace the related parts. Read the Installation Instructions (page - LG LDS4821BB | Service Manual - Page 21
ERROR MESSAGE EXCESS ERROR displayed Condition Excessive water is supplied than normal water level.(Automatically drain Pump operated.) POSSIBLE CAUSE FOR ERROR OCCURRENCE REMEDY The Inlet Valve is troubled. The Controller is troubled. Replace the Inlet Valve. Repair or replace the Controller. - LG LDS4821BB | Service Manual - Page 22
B. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM No Power on when the power button pressed. The Power connection NO is correctly connected. • Re-connect the Powr connection. • Check the electricity is failed or not. YES The Fuse or Circuit Breaker of house - LG LDS4821BB | Service Manual - Page 23
The Wash Pump/Motor does not run. The Door is tightly closed? NO • close the Door tightly. • Check the Door Switch in the Washing Motor. YES The Blade is not locked NO by a small and sharp object? • Remove the cause of lock or replace the Blade. YES Replace the Wahing Pump/Motor - 24 - - LG LDS4821BB | Service Manual - Page 24
for Streak) Check that : - the amount of detergent Correctly used or not - Filters clogged or not. - the holes of spray arms blocked or not. - Utensils is obstructed or not. - the program is correctly selected or not. Dry Results are not satisfactory Increase the amount of Rinse-Aid.(Set the number - LG LDS4821BB | Service Manual - Page 25
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.) - 26 - - LG LDS4821BB | Service Manual - Page 26
9. INSTALLATION INSTRUCTION Step 1: PREPARE CUPBOARD OPENING 1. This dishwasher is designed to fit a standard dishwasher opening as shown 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 10 ft. - LG LDS4821BB | Service Manual - Page 27
or adapter plug with this dishwasher. Electrical and grounding connections must comply with the national electrical code/provincial and municipal code and/or other local codes. 1. This appliance must be operated with correct voltage as shown in this manual and on the rating plate, and connected to - LG LDS4821BB | Service Manual - Page 28
tape or compound should be used to avoid leaks. 3. When connecting the dishwasher water line, the house supply should be shut off. 4. The Water Supply Tube must be oriented as shown in Figure A on page 6. Step 4: PREPARE DISHWASHER FOR INSTALLATION 1. Adjust the legs to the required height to - LG LDS4821BB | Service Manual - Page 29
Step 5: INSTALL THE DISHWASHER IN CUPBOARD 1. Remove the Lower Cover and orient dishwasher as shown below. 2. Before sliding the dishwasher into the cupboard opening, make all necessary height adjustments using the legs. 3. Slide the dishwasher into the cabinet opening carefully. Make sure that the - LG LDS4821BB | Service Manual - Page 30
an adapter (not supplied) that must be resistant to heat and detergent and may be obtained from a plumbing , one of the following instruction methods must be followed: codes and ordinances. �Do not exceed 10 ft. (3m) distance to drain. �Do not connect drain lines from other devices to the dishwasher - LG LDS4821BB | Service Manual - Page 31
Inlet Valve Elbow Water Supply Tube 4. Tighten the nut and make sure that the line is not kinked or sharply bent. Step 8: ELECTRICAL POWER CONNECTION 1. Before beginning, turn off electrical power to the unit at the circuit breaker. 2. Remove the Junction Cover and then Install the Strain Relief - LG LDS4821BB | Service Manual - Page 32
Step 9: FINAL CHECKS 1. Turn electrical power back on at the circuit breaker. 2. Turn house water supply back on. 3. Operate the dishwasher through one cycle (Quick cycle is recommended) to check for water leaks and operating conditions. 4. Replace the Lower Cover. - 33 - - LG LDS4821BB | Service Manual - Page 33
10. EXPLODED VIEW ACCESSORIES E005 - 34 - - LG LDS4821BB | Service Manual - Page 34
EXPLODED VIEW F101 E005 E010 F103 F102 F001 M210 A040 M262 - 35 - A130 A160 M260 M261 M270 - LG LDS4821BB | Service Manual - Page 35
EXPLODED VIEW - TUB ASSEMBLY M086 F045 F040 F060 F050 F022 M090 F043 F041 F042 F011 F171 F014 F013 F117 F110 F144 F132 M005 M006 F011 F013 F143 F117 F210 - 36 - - LG LDS4821BB | Service Manual - Page 36
EXPLODED VIEW - RACK ASSEMBLY A150 A101 A102 A103 A140 A080 A151 A152 F192 F004 F005 A070 A073 A060 A074 A141 A142 A050 F191 A110 - 37 - - LG LDS4821BB | Service Manual - Page 37
EXPLODED VIEW - PANEL ASSEMBLY K254 K220 K230 K006 K262 K260 K200 K252 K251 K201 K203 - 38 - - LG LDS4821BB | Service Manual - Page 38
EXPLODED VIEW - DOOR ASSEMBLY K030 K110 K124 K002 K121 K122 K101 K001 K140 F174 F142 F141 K100 A120 - 39 - - LG LDS4821BB | Service Manual - Page 39
EXPLODED VIEW - SUMP ASSEMBLY M130 M120 M007 M036 M001 M038 M110 M025 M221 M035 M027 M028 M031 M088 M034 M220 M026 M050 M087 M060 M081 - 40 - - LG LDS4821BB | Service Manual - Page 40
IN THIS MANUAL NOTE : S(SAFETY PARTS), AL(ALTERNATIVE PARTS) LG MODEL: D1607(WB,BB,TB) YOUR MODEL: LDS4821(WW,BB,ST) Run_Date : 2008-04-20 SPECIFICATION: 120V 60Hz LOC DESC PART No. COMMENTS QTY *001 *002 *003 E005 MANUAL ASSEMBLY,OWNERS BOX,CARTON MANUAL,SERVICE ACCESSORY ASSEMBLY - LG LDS4821BB | Service Manual - Page 41
,WATER GUIDE,NOZZLE RAIL ASSEMBLY DISPENSER BRACKET ASSEMBLY DECOR,HANDLE K030 COVER ASSEMBLY,FRONT K100 K101 K110 K121 K122 K124 K140 K141 K200 DOOR LINER ASSEMBLY PARTS ASSEMBLY CASING ASSEMBLY GASKET COVER,BLOWER VENT HOSE CLAMP PANEL ASSEMBLY,CONTROL K209 BUTTON,CONTROL K203 K230 K251 K252 - LG LDS4821BB | Service Manual - Page 42
ASM ~ TUB LOW 2 WATER GUIDE ~ SUMP 1 DRAIN MOTOR 1 WASHING MOTOR 1 1 1 SOIL SENSOR 1 HOLDER HEATER 1 1 1 PUMP CASE 1 1 0 DRAIN 1 DRAIN COVER 1 1 1 JUNCTION BOX 1 4 LEVELING KIT 1 BASE + HINGE SUPPORT 4 SUMP FILTER 8 IMPELLER 1 SUMP ~ DRAIN PUMP 3 SUMP ~ MOTOR - LG LDS4821BB | Service Manual - Page 43
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DISHWASHER
SERVICE MANUAL
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY
FOR SAFETY AND CORRECT SERVICES.
NOTE
MODEL : LDS4821(WW,BB,ST)