LG LDF7932 Service Manual Download Page 11 | Manualshive

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6. PROGRAM CHART(SCHEMATIC DIAGRAM)

LDF 7932 Series

Program chart

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Summary of Contents for LDF7932

Page 1: ...DISHWASHER SERVICE MANUAL BEFORE SERVICING THE UNIT PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES NOTE MODEL LDF7932 WW BB ST ...

Page 2: ...7 5 PARTS NAME 11 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 CONTENTS ...

Page 3: ...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 4: ...teel Control Electronic Rated Power Watt 1 350 Heater Power Watt 1 200 Programs 6 Upper Rack Position Adjustable Lower Rack 50 Fold down Water Consumption 10 26 Normal Power Consumption kWh year 285 310 Operating Time min 101 135 Normal 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 20 120 140 ...

Page 5: ... 6 7932 series 3 WIRING DIAGRAM ...

Page 6: ...ts compared to the condensing drying system Because of alternating water spray between the Upper and Lower Rack the water pressure 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 dishwasher has a self cleaning filter that grinds food into small particles before ...

Page 7: ... other cycle buttons Control panel may vary on some models 4 2 Display Panel LDF 7932 Series 1 NOTE If a main cycle has been selected the Rinse Only cycle will not be available without first shutting the power off CANCEL To cancel a running cycle open the door and then press and hold the Dual Intensity and Quick Wash buttons together for 3 seconds The drain pump will be activated and the cycle wil...

Page 8: ...include delay times for heating water etc If total time exceeds 99 minutes the display shows times in whole hours 2H 3H etc If Delay Wash is selected DELAY START To delay the start of a selected cycle press the Delay Start button Each time Delay Start is pressed will delay the start of the cycle by one additional hour The delay start time can be set from 1 to 12 hours in one hour increments STEAM ...

Page 9: ... level 3D 3E 3F 3H U0 11 22 33 44 55 66 77 88 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 All LEDs All LEDs All LEDs ...

Page 10: ... DISPLAY SignaLight BASE TOP SPRAY ARM UPPER SPRAY ARM STEAM NOZZLE LOWER SPRAY ARM DETERGENT AND RINSE AID DISPENSER DRYING VENT COVER UPPER RACK SILVERWARE BASKET LOWER RACK TOP DISPLAY POWER BUTTON The appearance and specifications may be varied without notice according to localities 5 3 LDF 7932 Series INSTALL BRACKET WOOD SCREW ...

Page 11: ... 12 6 PROGRAM CHART SCHEMATIC DIAGRAM LDF 7932 Series Program chart ...

Page 12: ... 4 Remove the Lower Rack and the Upper Rack 5 Remove the inlet hose and drain hose connetion 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 Remove the Inlet Hose and Power Supply Cable 2 Tub Felt 1 Tub Felt Lower Cover Tub Felt ...

Page 13: ...Assembly 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 ...

Page 14: ...erclockwise 4 Detergent Dispenser Close the door Remove the wire connections 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 D...

Page 15: ...e 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 16: ...crews 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 17: ...ssembly WaterLevel Sensor High 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 Nut Foot CAUTION Be cautious in case of the generator is hot temperature ...

Page 18: ... Valve by removing the 2 screws 13 Rear Leg Adjustment System 1 Remove 2 screws 2 Pull the Holder 3 Pull the Leg Adjust 4 Pull the Shaft Assembly 15 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 Holder Leg Adjust Shaft Assembly ...

Page 19: ... Vario Motor Remove 2 screws for Vario Motor Pull the Vario Motor and Micro S W 3 Soil Sensor Pull the Soil Sensor 16 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 20: ... off the seals You must take off Stopper Roller F117 by screwdriver to change the Rail Assembly Stopper Roller could be broken while you are taking off So you should be careful not to be hurt and have extra stopper rollers ready at servicing at all times Rotate the screwdriver after slide it into the gap between Stopper Roller and Rail Roller ...

Page 21: ...worn 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 actio...

Page 22: ...eplace 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 put THERMAL ERROR displayed Condition Check the wiring connection Replace the cause of restriction Replace the Washing Motor Replace the PCB The Motor is working...

Page 23: ...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 24: ...r 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 25: ...ctions 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 26: ...y 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 t...

Page 27: ... 28 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 28: ...nt a wall Ensure the floor under the dishwasher is at the same level as the rest of the room to allow for any service requirements If dishwasher will sit directly on subflooring subfloor should 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 Th...

Page 29: ...by time delay fuse 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 T...

Page 30: ...e 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 dishwasher by using level Left side turn the adjusting screw counterclockwise to lower the leg and raise the rear of the dishwasher Right side ...

Page 31: ...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 drain hose inside the cabinet is not kinked 4 Follow the instruction as in Figure B Step 5 INSTALL THE DISHWASHER IN CUPBOARD ...

Page 32: ...tion 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 device...

Page 33: ...e line is not kinked or sharply bent Inlet Valve 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 ...

Page 34: ...urn 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 35: ... 36 36 Printed materials Description Owner s Manual Energy Label Loc No Service Manual G001 G002 G004 The following parts are not illustrated ACCESSORIES E005 10 EXPLODED VIEW ...

Page 36: ... 37 37 F102 F103 A008 F101 E005 E010 A040 A003 A130 F001 Check the Rating Model No and refer Appendix B EXPLODED VIEW ...

Page 37: ... 38 F011 F013 F117 F144 F110 F132 F143 F117 F210 F011 F013 M006 M005 F171 F040 F060 F050 F022 F230 F300 F042 F041 EXPLODED VIEW TUB ASSEMBLY ...

Page 38: ... 39 39 A158 A150 A158 A140 A157 A151 A149 A144 A147 A148 A141 A142 A110 A147 A050 F191 A101 A102 A103 A156 A159 A080 F192 F004 F005 A070 A155 A060 A074 A073 EXPLODED VIEW RACK ASSEMBLY ...

Page 39: ... K200 K209 K201 K207 K215 K251 K216 K253 K220 K254 K252 M260 A160 M090 F043 F045 M086 M500 M100 M210 M266 M105 M261 EXPLODED VIEW PANEL ASSEMBLY EXPLODED VIEW BASE ASSEMBLY 40 MFL37554807 S M 2008 11 5 8 48 AM 40 ł ...

Page 40: ... 41 41 EXPLODED VIEW DOOR ASSEMBLY K217 K030 K010 K005 K230 K002 A120 K001 K122 K110 K121 K101 F174 F142 F141 K124 K140 K100 K141 ...

Page 41: ... 42 42 M001 M110 M038 M025 M035 M130 M036 M007 M087 M060 M081 M120 M034 M088 M027 M028 M026 M050 M221 M031 M220 EXPLODED VIEW SUMP ASSEMBLY ...

Page 42: ... 43 MEMO ...

Page 43: ...P No MFL37554807 ...

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