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LG LDF9810BB, Service Manual

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LG LDF9810BB Service Manual Download Page 4

- 3 -

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.

CAUTION

Summary of Contents for LDF9810BB

Page 1: ...P No MFL37554802 ...

Page 2: ...DISHWASHER SERVICE MANUAL BEFORE SERVICING THE UNIT PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES NOTE MODEL LDF9810 ST WW BB LDF9810 ST WW BB 01 ...

Page 3: ... 6 PROGRAM CHART 12 7 HOW TO DISASSEMBLE 13 8 TROUBLE SHOOTING METHODS 22 A TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE 22 B STEAM GENERATOR ERROR MESSAGE 24 C TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM 25 9 INSTALLATION INSTRUCTION 29 10 EXPLODED VIEW 36 11 REPLACEMENT PART LIST 42 CONTENTS 2 ...

Page 4: ...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 CAUTION ...

Page 5: ...t 1 350 Heater Power Watt 1 200 Programs 6 Cycle Upper Rack Position Adjustable Lower Rack 50 Fold down Cutlery Rack Yes Water Consumption 10 26 Normal Power Consumption kWh year 285 310 Operating Time min 101 135 Normal Fan Dry System Yes Steam Generator 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 ...

Page 6: ... 5 1 LDF9810 series 3 WIRING DIAGRAM ...

Page 7: ... condensing drying system while minimizing energy consumption Because the water spray is alternated between the upper and lower racks all the power from the motor is directed to only one rack at a time which allows superior performance and reduced consumption of water and electricity For best wash results the self cleaning filter system continuously cleans the water as it circulates Your LG dishwa...

Page 8: ... power is turned on if you don t select program or if you don t close the door after selecting a program your dishwasher will automatically turn off in 10 minutes 1 Select the desired wash cycle 2 Press and hold the SPRAY key for 3 seconds Both the UPPER and LOWER indicators will be illuminated indicating that both racks will be washed The UPPER indicator will be blinking to show this is the rack ...

Page 9: ... the upper or lower rack to save energy Press HALF LOAD repeatedly to select either the upper or lower rack Use this option to start the dishwasher at a later time Press DELAY START repeatedly to delay the beginning of the selected cycle Each press of the button will increase the delay time by one hour Maximum delay is 24 hours This cycle is for normally soiled every day loads This cycle is for no...

Page 10: ... cycle if the sanitary temperature has been achieved Once the cycle has ended the symbol will be steady if the sanitary temperature has been achieved See NOTE below The symbol indicates that an extra rinse has been added to the selected cycle SPRAY INDICATOR Indicates the selected spray intensity Strong Medium or Soft HALF LOAD INDICATOR Each press of the HALF LOAD key cycles between upper rack on...

Page 11: ...ency 0n 3H 0U 00 00 00 11 11 22 22 33 33 44 44 55 55 66 66 77 77 88 88 99 99 Steam generator Thermistor Steam generator Heater for 1 2 sec Drain Pump Inlet Valve Dispenser Sump Heater for 10 sec Fan Motor Sump Thermistor Soil sensor Wash Pump H170 L170 Lower Nozzle Vario Upper Nozzle Vario W Pump Vario Heater for 1min All LEDs All LEDs All LEDs All LEDs All LEDs All LEDs All LEDs All LEDs All LEDs...

Page 12: ...LEVELING KIT LDF 9810 Series Control Panel Door Handle Front Cover Lower Cover Leveling Foot Side Cabinet Base Top Spray Arm Upper Spray Arm Removable Tines Steam Nozzle Lower Spray Arm Detergent Rinse Aid Dispenser Vapor Vent Cover Tub Lamp IllumiTubTM Cutlery Rack Upper Rack Cutlery Basket Lower Rack Blue LCD Display Power Button ...

Page 13: ... 12 6 PROGRAM CHART SCHEMATIC DIAGRAM LDF 9810 Series ...

Page 14: ...netion to avoid the hose damages 6 Prepare some towels to avoid floor wet by the water left in the dishwasher 7 HOW TO DISASSEMBLE 7 1 FULL DISASSEMBLE 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 sc...

Page 15: ... 7810 8812 Series 1 Front Cover Open the door Remove 12 screws stainless 2 Control Panel Assembly Remove 2 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 14 ...

Page 16: ...Remove 6 screws with brackets Push the Detergent slowly pulling up the the Flange by Standard Screwdriver 5 Door Spring Right Left Push the Spring upwards and take it off from the Hinge Bracket Be careful not to be injured by the sharpedge of Tub Take off the Hinge Link from the Hinge 6 Door Liner Open the door Pull the Door Liner and take it off from the Hinge Supporter Door Liner Assembly Hinge ...

Page 17: ...Drain Hose Drain Hose Holder 4 Lower Frame 1 Press the holder hook as shown in figure 2 Remove 4 screws 6 Drain Hose Holder 1 Press the holder hook as shown in figure 2 Pull the Drain Hose and remove the Drain Hose Holder 5 Put the Dishwasher upside down ...

Page 18: ...rews 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 Cabinet Base Base Cover ...

Page 19: ...Thermistor Heater Water Level Sensor Low 10 Float Assembly 1 Press the Float hook 2 Pull the Float Assembly 11 Steam Generator 1 Disconnect the 3 hoses assembly 2 You can disassemble the Steam generator by removing the 2 screws Steam Generator CAUTION Be cautious in case of the generator is hot temperature ...

Page 20: ...Gasket Air Braker Assembly 12 Inlet Valve 1 You can disassemble the lnlet Valve by removing the 2 screws 13 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 ...

Page 21: ...Vario Motor Remove 2 screws for Vario Motor Pull the Vario Motor and Micro S W 3 Soil Sensor Pull the Soil Sensor 14 Sump Assembly Remove 2 screws Remove the Sump Holder and push the Sump Assembly down with pulling aside Hook Be careful not to drop the Sump Assembly to the bottom Drain Pump Heater Vario Motor Micro S W Soil Sensor ...

Page 22: ...le you are taking off So you should be careful not to be hurt and have extra stopper rollers ready at servicing at all times Cutlery Rack Rail Upper Rack Rail 1 Pull the upper rack out until it stops 2 Squeeze the tab of the stopper and pull out Be careful the upper rack does not fall off the rail while pulling out the stopper 3 Pull the upper rack out of the slides Rotate the screwdriver after sl...

Page 23: ...rn away Remove the cause of kink or block Check the wiring connection Measure the electric resistance of Drain Motor 20 40 Replace the Drain Motor or repair the Circuit Replace the connections of Hose Check the point of damages and repair or replace the related parts Read the Installation Instructions page 9 and fix it to the recommended Height Replace the Impeller of the Washing Pump Take action ...

Page 24: ...t the Inlet Water Temperature to 120 If the temperature is not displayed check the wiring connection check the electric resistance of Thermistor 11 14k at 77 Replace the PCB Replace the Inlet Valve Repair or replace the Controller Excessive water is sup plied than normal water level Automatically drain Pump operated EXCESS ERROR displayed Condition The resistance of ther mistor not normally out pu...

Page 25: ...stor check Check the wiring connection and water level sensor Check the inlet valve and sensor connection Check the heater and thermistor 00 E0 00 E1 00 E2 00 E3 00 E4 00 E5 ERROR MESSAGE CONDITION REMEDY Steam Generator Error mode is not displayed in normal condition and it can be confirmed by following additional operation To confirm steam generator error press the DELAY START and RINSE ONLY but...

Page 26: ...of house is O K The Power Switch or the Circuit is O K Re connect the Powr connection Check the electricity is failed or not Replace the Fuse or Circuit Breaker of house Check the Power Switch or the circuit and repair it Check the Controller Power Circuit C TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM NO NO YES YES YES NO ...

Page 27: ...ions is OK The Blade is not locked by a small and sharp object close the Door tightly Check the Door Switch in Latch Handle Re connect the wiring connections related to the Washing Motor Remove the cause of lock or replace the Blade Replace the Wahing Pump Motor NO NO NO YES YES YES ...

Page 28: ... used or not Filters clogged or not the holes of spray arms blocked or not Utensils are correctly arranged or not Utensils are overloaded or not the spray arm rotating is obstructed or not the program is correctly selected or not Reduce the amount of Rinse Aid for Streak YES Dry Results are not satisfactory Increase the amount of Rinse Aid Set the number higher Select the Program that the Rinse te...

Page 29: ... 28 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 ...

Page 30: ... be sealed with a waterproof paint or sealer to prevent damage from steam Drill a 1 1 2 38mm dia hole or cut out for drain hose inlet hose and electrical cables on either side approx 4 100mm W X 4 100mm H These openings must be within 4 100mm from the floor and 1 5 8 40mm from the back wall If there is a floor in the cabinet under the sink it will also be necessary to drill or cut through the floo...

Page 31: ...e Wiring must be 3 wires including ground 2 The wiring or cord should be in an accessible location adjacent to and not behind the dishwasher and within 4 ft 1 2m of the dishwasher side 3 The wiring or cord must be grounded properly if in doubt have it checked by a qualified electrician No other appliance shall be connected to the same outlet by a double adapter or similar plug 4 The wiring or cord...

Page 32: ...ting the dishwasher water line sealing 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 fit properly under the countertop as shown below 2 Check the level of dishw...

Page 33: ...shwasher 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 drain hose inside the cabinet is not kinked 4 Follow the instruction as in Figure B Step 5 INSTALL THE DISHWASHER IN CUPBOARD ...

Page 34: ...on the drain hose The drain connection must meet local plumbing regulations The S trap spigot must be drilled out cleanly and free of obstruction to its maximum internal diameter if used for drainage To prevent syphoning one of the following instruction methods must be followed Follow local codes and ordinances Do not exceed 10 ft 3m distance to drain Do not connect drain lines from other devices ...

Page 35: ... Water Supply Tube Elbow 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 3 Twist Wire Connectors tightly on the wires Wrap each connection with Electrical tape 4 Check again and make sure that all wires are connected correctly black to black white to white green to green ground to ground 5 Replace the Ju...

Page 36: ...rn 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 ...

Page 37: ...A008 A007 F240 F101 005 E010 A005 A020 A040 A003 A130 A010 A006 ACCESSORIES 005 F001 Check the Rating Model No and refer Appendix B 36 EXPLODED VIEW 10 EXPLODED VIEW ...

Page 38: ...22 F230 F300 F042 F041 F011 F171 F014 F122 F123 F013 M005 M006 F121 F011 F013 F121 F122 F123 F132 F144 F143 F110 F113 F112 F113 F210 F111 F117 F111 F118 F117 UPPER RACK RAIL RIGHT UPPER RACK RAIL LEFT EXPLODED VIEW TUB ASSEMBLY ...

Page 39: ...M500 M210 M300 M270 M261 M262 M260 A160 M090 F043 F045 M086 A050 F191 F192 F004 F005 A070 A060 A074 A073 M301 38 EXPLODED VIEW BASE ASSEMBLY EXPLODED VIEW NOZZLE ASSEMBLY ...

Page 40: ...A158 A140 A157 A157 A151 A149 A144 A148 A141 A142 A110 A147 A101 A102 A103 A156 A159 A155 A172 A171 A173 A174 A175 A080 A146 A165 A145 A150 A170 39 EXPLODED VIEW RACK ASSEMBLY ...

Page 41: ... K001 K141 K122 K302 K110 K121 K101 K124 F174 F141 K301 K304 F142 F141 F142 K124 EXPLODED VIEW DOOR ASSEMBLY K100 K110 K124 4937DD1001B 5835ED2002D MJZ36939301 4937DD1001C ABT35083801 MJZ39902101 Serial No SVC Model 711 LDF9810ST 712 LDF9810ST 01 Check the Rating Model No and refer Appendix A ...

Page 42: ... 41 K200 K220 K253 K260 K207 K215 K207 K252 K251 K303 Check the Rating Model No and refer Appendix B EXPLODED VIEW PANEL ASSEMBLY ...

Page 43: ... 42 42 M001 M110 M038 M025 M035 M130 M036 M007 M087 M060 M081 M120 M034 M088 M027 M028 M026 M050 M031 M220 M305 M303 M302 M304 EXPLODED VIEW SUMP ASSEMBLY ...

Page 44: ...5005DD1001B 1 A120 HARNESS MULTI EAD38156501 1 A130 HOSE ASSEMBLY DRAIN AEM30700301 INNER PHI 15 21 1 A140 RACK ASSEMBLY AHB33839701 LOWER RACK 1 A141 RACK MGR38994701 1 A142 ROLLER ASSEMBLY 4581DD3003B 8 A144 RACK 3750DD2003A 2 A145 HOLDER 4930ED3003D 1 A146 HOLDER 4930ED3004D 1 A147 HOLDER 4930DD3006A 2 A148 RACK 3750DD1001A 1 A149 RACK 3750DD1002A 1 A150 RACK ASSEMBLY AHB33839501 UPPER RACK 1 A...

Page 45: ...TOPPER ROLLER 4620ED3003A 3RD RACK RAIL RIGHT 1 F121 STOPPER ROLLER MJB32864101 UPPER RACK RAIL 4 F122 RAIL MGT32863801 UPPER RACK RAIL 2 F123 HOUSING ASSEMBLY BEARING AEN32597901 UPPER RACK RAIL 2 F132 PACKING 3920DD3005A TUB PACKING 1 F141 HINGE ASSEMBLY 4775DD2002A DOOR RIGHT 1 F142 HINGE ASSEMBLY 4775DD2001A DOOR LEFT 1 F143 HINGE ASSEMBLY 4775ED3004A TUB RIGHT 1 F144 HINGE ASSEMBLY 4775ED3003...

Page 46: ...1 M034 BLADE 5832DD4001A 1 M035 PACKING MFZ32863101 1 M036 HOLDER 4930DD3008A SUMP ASM TUB LOW 2 M038 HOLDER 4930DD3012A WATER GUIDE SUMP 1 M050 MOTOR ASSEMBLY AC 4681EA2002D DRAIN MOTOR 1 M060 MOTOR ASSEMBLY DC 4681ED1004A WASHING MOTOR 1 M081 HEATER ASSEMBLY 5301DD1001A 1 M086 SWITCH MICRO 3W40025P 2 M087 SENSOR ASSEMBLY 6501ED2002F SOIL SENSOR 1 M088 COVER 3740ED3003A HOLDER HEATER 1 M090 FLOAT...

Page 47: ... A120 HARNESS MULTI EAD38156501 1 A130 HOSE ASSEMBLY DRAIN AEM30700301 INNER PHI 15 21 1 A140 RACK ASSEMBLY AHB33839701 LOWER RACK 1 A141 RACK MGR38994701 1 A142 ROLLER ASSEMBLY 4581DD3003B 8 A144 RACK 3750DD2003A 2 A145 HOLDER 4930ED3003D 1 A146 HOLDER 4930ED3004D 1 A147 HOLDER 4930DD3006A 2 A148 RACK 3750DD1001A 1 A149 RACK 3750DD1002A 1 A150 RACK ASSEMBLY AHB33839501 UPPER RACK 1 A151 RACK MGR3...

Page 48: ... ROLLER STOPPER 2 F118 STOPPER ROLLER 4620ED3003A 3RD RACK RAIL RIGHT 1 F121 STOPPER ROLLER MJB32864101 UPPER RACK RAIL 4 F122 RAIL MGT32863801 UPPER RACK RAIL 2 F123 HOUSING ASSEMBLY BEARING AEN32597901 UPPER RACK RAIL 2 F132 PACKING 3920DD3005A TUB PACKING 1 F141 HINGE ASSEMBLY 4775DD2002A DOOR RIGHT 1 F142 HINGE ASSEMBLY 4775DD2001A DOOR LEFT 1 F143 HINGE ASSEMBLY 4775ED3004A TUB RIGHT 1 F144 H...

Page 49: ...D3001B VARIO MOTOR 1 M027 SWITCH MICRO 3W40025C CHECK THE POSITION OF THE VARIO CAM 1 M028 CAM SWITCH MBJ32856401 1 M031 PACKING 3920ED4009B VARIO PACKING 1 M034 BLADE 5832DD4001A 1 M035 PACKING MFZ32863101 1 M036 HOLDER 4930DD3008A SUMP ASM TUB LOW 2 M038 HOLDER 4930DD3012A WATER GUIDE SUMP 1 M050 MOTOR ASSEMBLY AC 4681EA2002D DRAIN MOTOR 1 M060 MOTOR ASSEMBLY DC 4681ED1004A WASHING MOTOR 1 M081 ...

Page 50: ...STOMIZED 1SZZED3006A IMPELLER 1 M304 SCREW CUSTOMIZED 1SZZFA4305A SUMP DRAIN PUMP 3 M305 SCREW CUSTOMIZED 4W51194D SUMP MOTOR 4 M500 GENERATOR ASSEMBLY ADZ32992801 STEAM GENERATOR 1 PART NAME PART No SPEC COLOR Q ty No ...

Page 51: ...0001 MJZ39902101 K124 VENT Vent was chang ed to Improve Dr ying performance ABT35083801 K110 CASING ASS EMBLY Casing ASM w as changed to Im prove Drying per formance 4937DD1001C K001 DOORLINER ASSEMBLY Casing ASM Vent were chang ed to Improve Dr ying performance Hose added AFTER LDF9810ST 01 S N 1DD10001 ...

Page 52: ... 51 Appendix B MODIFIED PART FROM DEC 2007 Check original parts replace or modify with new parts Refer Appendix A ...

Page 53: ...DD1001A AGL33667101 BEFORE 4766DD1001A FELT In Frontcover Felt was modified to avoid interference with new vent 4810DD1001A F174 HINGE BRACKET Hinge bracket was modified to include a new vent mounting hole AGL33667101 F001 FRAME ASSEMBLY LOWER Frame was modified to avoid interference with new vent AFTER Square Hole added Jan 2007 Hole added Aug 2007 Trim Dec 2007 ...

Page 54: ...ies Only Front Cover Front Cover was modified to avoid interferenc e with new blower assembly W W AGL32598401 Part Numbers K200 LDF6810 Series ONLY CONTROL PANEL ASSEMBLY Control panel was modified to avoid interference with new blower assembly K200 LDF8812ST ONLY CONTROL PANEL ASSEMBLY Control panel was modified to avoid interference with new blower assembly AFTER Trim Aug 2007 Trim Aug 2007 Trim...

Page 55: ... Cut out areas as shown for blower clearance LDF9810xx shown FRONT VIEW REAR VIEW Discard Cut line 4 Assemble and m ount the new blower vent 5 The control panel frame must be modified or replaced If it is to be modified for blower clearance cut out areas shown in the photos below Test fit panel to door liner prior to assembly to make sure panel does not touch blower motor or housing as this could ...

Page 56: ...Hose K140 9 Reassemble control panel and front door panel Test for proper operation Clamp Routing 6 Using the new vent as a template drill a new hole for mounting the vent Attach the vent using the black screw from the old vent Align the bottom of the vent with the bottom of the door panel when assembling vent NOTE Be careful not to damage the door liner when dr illing the hole Mark the location t...

Page 57: ... 56 MEMO ...

Page 58: ... 57 MEMO ...

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