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OWNER'S MANUAL
DISHWASHER
Read this owner's manual thoroughly before operating the
appliance and keep it handy for reference at all times.
ENGLISH
LDFN343**
www.lg.com
MFL69261733
Copyright © 2020-2021 LG Electronics Inc. All Rights Reserved.
Rev.03_020121

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Summary of Contents for LG LDFN343LS

  • Page 1 OWNER'S MANUAL DISHWASHER Read this owner's manual thoroughly before operating the appliance and keep it handy for reference at all times. ENGLISH LDFN343** www.lg.com MFL69261733 Copyright © 2020-2021 LG Electronics Inc. All Rights Reserved. Rev.03_020121...
  • Page 2: Table Of Contents

    Options and Extra Functions Loading the Dishwasher Loading the Silverware Basket Loading the Lower Rack Loading the Upper Rack Adding Cleaning Products 33 SMART FUNCTIONS LG ThinQ Application Smart Diagnosis Function 34 MAINTENANCE Cleaning and Care 37 TROUBLESHOOTING Before Calling for Service...
  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE Safety Messages Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages.
  • Page 4 • Do not grasp the power supply line or touch the appliance controls with wet hands. • Do not modify or extend the power cable. • If the product has been submerged, contact an LG Electronics customer information center for instructions before resuming use.
  • Page 5 IMPORTANT SAFETY INSTRUCTIONS • Fix the drain hose securely in place. • Use only detergents or wetting agents recommended for use in a dishwasher and keep them out of the reach of children. • Do not let children eat detergent or dishwasher rinse agent. •...
  • Page 6: Caution Statements

    IMPORTANT SAFETY INSTRUCTIONS Tip Over Hazard • Do not use the dishwasher until completely installed. • Do not push down on the open dishwasher door. • Failure to follow these instructions may result in serious injury or cuts. CAUTION STATEMENTS CAUTION •...
  • Page 7: Product Overview

    • Do not remove the safety cover at any time. • To ensure reliability, each LG dishwasher goes through thorough quality control before it leaves the factory. • You may find water droplets or water spots from this process inside your new dishwasher.
  • Page 8 PRODUCT OVERVIEW Accessories NOTE • Remove all packing materials from the exterior and interior of the dishwasher before installing the appliance. • Press the tab to remove the cable tie by hand. Cutting the tie with a knife or scissors may Installation Brackets (2 ea) damage the rack or the silverware basket.
  • Page 9: Installation

    INSTALLATION INSTALLATION Before Installing Parts not Provided Flat-Blade Screwdriver Phillips Screwdriver Hole Saw min. 2 1/2” bit Electrical Cable Electric Drill Water Supply Tube Gloves Fittings for Tube Safety Glasses Coupler Adjustable Wrench Electrical Tape Tape Measure Air Gap Utility Knife Wire Nuts for 16-Gauge Wiring Level Hose Clamp...
  • Page 10: Preparing Cabinet Opening

    10 INSTALLATION Preparing Cabinet Opening Sliding the Dishwasher into Cabinet Opening Connecting Water Supply Line and Power This dishwasher is designed to fit a standard dishwasher opening. An opening may be needed Connecting the Drain Hose on both sides to route plumbing and electrical connections.
  • Page 11: Preparing Water And Electrical Connections

    - Do not reuse an old hose. Use only a new hose the electrical cable. when installing the dishwasher. The old hose could leak or burst causing flooding and property damage. Contact an LG Customer Information Center for assistance in buying a new hose. • Electrical Connection - Use a time-delay fuse or circuit breaker.
  • Page 12: Preparing Dishwasher

    12 INSTALLATION Removable Shipping Brace side of the opening and tape it in place in front of the opening. The rear shipping brace can be removed if additional clearance is needed when installing the dishwasher under a low countertop. Run the electrical cable along the floor 14"...
  • Page 13: Sliding Dishwasher Into Cabinet Opening

    INSTALLATION For countertops made of granite, marble, or other • Do not push the door of the dishwasher with materials that could be damaged by drilling, use knees when sliding the dishwasher into position. the wood screws to attach the dishwasher to the Doing so can damage the front cover.
  • Page 14: Connecting Water Supply Line And Power

    14 INSTALLATION Smooth out or pad the edges of the hole Remove the tape from the water supply line drilled for the water supply to avoid damaging and the electrical cable. the drain hose. Make sure the drain hose is straight before feeding the end of it through the hole for the Connecting Water Supply water supply.
  • Page 15 INSTALLATION within 4 ft. (1.22 m) of the dishwasher side and not behind the dishwasher. Insert a strain relief through the hole in the NOTE junction box. Tighten the ring nut to secure • The best location for the electrical conduit is on it in place.
  • Page 16: Connecting The Drain Hose

    16 INSTALLATION Pair the white, black, and green wires to the • If connecting the dishwasher’s drain hose to the matching colored wires from the dishwasher. garbage disposal, be sure to follow your Then twist on the provided wire nuts tightly garbage disposal’s manual for proper to connect the corresponding wires.
  • Page 17: Leveling Dishwasher

    INSTALLATION Remove the knockout plug from the Attach the drain hose to the waste tee with disposal. the hose clamp provided. Move the clamp into position and tighten it with a flat-blade screwdriver. WARNING • If the knockout plug has not been removed, the dishwasher will not be able to drain properly.
  • Page 18 18 INSTALLATION • Where the cabinet opening is narrower than • Adjust the front and rear leveling feet until they recommended (see Preparing Cabinet are all in firm contact with the floor. Failure to Opening), the dishwasher must be carefully level the dishwasher may prevent the door from leveled and aligned so that the dishwasher is closing properly and the dishwasher will not turn...
  • Page 19: Securing Dishwasher In Cabinet Opening

    INSTALLATION Remove the 2 plastic caps from the mounting NOTE bracket access holes. • To avoid damaging the screw, do not use an electric screwdriver. Securing Dishwasher in Cabinet Opening There are 2 options for securing the dishwasher. If Drive a wood screw through the mounting the countertop is made of wood or a material that bracket and into the cabinet frame.
  • Page 20 20 INSTALLATION Check for leaks at the drain hose and water Error Code Possible Cause and Solution supply connection. Water supply line is kinked under dishwasher. If a water leak is detected, press and hold the • Feed the drain and water Start button for 3 seconds to cancel the wash supply hoses through the hole cycle and automatically drain the water from...
  • Page 21: Operation

    OPERATION OPERATION Before Using WARNING • To reduce the risk of fire, electric shock, or injury to persons, read the SAFETY INSTRUCTIONS before operating this appliance. NOTE • Connect to the hot water supply only. The water supply temperature should be a minimum of 120 °F (49 °C) for better washing performance and shorter cycle time.
  • Page 22 22 OPERATION End of cycle. • When the cycle is complete, a chime will sound and the display will show until the door is opened or Power is pressed. To save energy, press and hold High Temp for three seconds to set the display to automatically turn off a few minutes after the cycle ends.
  • Page 23: Control Panel

    OPERATION Control Panel Control Panel Features Power On/Off Button • Press this button to turn the washer on or off. • If there is a power surge, power outage, or disruption of any kind, power is automatically turned off for safety. •...
  • Page 24: Wash Cycles

    24 OPERATION Chime On/Off Button • To activate or deactivate the button sounds, press and hold Cycles and Machine Clean simultaneously for three seconds. The error alert sound cannot be turned off. Cancel Button • The drain pump activates and the cycle cancels. Once the dishwasher finishes draining, the power turns off.
  • Page 25 OPERATION Night Dry Mode Description Dishes are often left in the dishwasher overnight Various conditions after the cycle ends. This can result in the steam • Place heavily soiled dishes like inside the tub condensing on dishes, leaving them plates and bowls in the lower rack wet.
  • Page 26: Loading The Dishwasher

    26 OPERATION Loading the Dishwasher Loading Silverware into the Basket The extra tall tub allows loading of dishes, pans, or Loading 10 Place Settings other utensils up to 14" high. For effective washing performance, always follow these instructions. 3 4 6 5 •...
  • Page 27: Loading The Lower Rack

    OPERATION Loading the Lower Rack Folding Down the Lower Tines Fold tines down to fit larger dishes; pull tines back Loading Dishes into the Lower Rack up to fit smaller dishes. Case 1 Loading 10 Place Settings Case 2 Loading 12 Place Settings Loading Dishes &...
  • Page 28: Loading The Upper Rack

    28 OPERATION Loading Pots & Bowls NOTE • The silverware basket ships installed at the back of the bottom rack. For best performance, install it along the right side as shown. Loading the Upper Rack Loading Dishes into the Upper Rack Loading 10 Place Settings...
  • Page 29 OPERATION Loading 12 Place Settings Loading Dishes & Pots Height Adjustable Upper Rack Upper Rack Loading Tips: The upper rack adjusts up and down. Raise the • Place cups and glasses in the rows between the upper rack to allow items up to 14" tall in the lower rack tines.
  • Page 30: Adding Cleaning Products

    30 OPERATION Adding Cleaning Products NOTE • Before pushing the upper rack into the Adding Detergent to the Dispenser dishwasher, ensure the rack height is the same on both sides. If the height is not the same on • Remove the label on the dispenser prior to both sides, the dishwasher door will not shut running the dishwasher for the first time.
  • Page 31 OPERATION • Using liquid rinse aid improves drying performance by allowing water to drain off of dishes after the final rinse. • Do not use detergent tablets for shorter wash cycles. The tablet may not dissolve completely, causing detergent residue on dishes and inefficient cleaning.
  • Page 32 32 OPERATION Press Delay Start to change the rinse aid dispenser setting. Each press of the button changes the setting one step from L0 to L4. Once the desired rinse aid dispenser setting is selected, press Start to save. Refilling the Rinse Aid How often the dispenser needs to be refilled depends on how often dishes are washed and the rinse aid setting used.
  • Page 33: Smart Functions

    Using Audible Diagnosis to Diagnose Issues Follow the instructions below to use the audible diagnosis method. • Launch the LG ThinQ application and select the Smart Diagnosis feature in the menu. Follow the instructions for audible diagnosis provided in the LG ThinQ application.
  • Page 34: Maintenance

    34 MAINTENANCE MAINTENANCE To maintain performance and prevent trouble, it is important to check the outside and inside of the dishwasher, including filters and spray arms, at regular intervals. WARNING • When cleaning the outside and inside of the dishwasher, do not use benzene or thinner. Otherwise, it may cause fire or explosion.
  • Page 35 MAINTENANCE Cleaning the Filters To replace the assembled filters, position the WARNING spray arm so the wider vee is toward the • Be cautious of sharp edges when handling the front. Fit the filters back into the filter holder stainless steel filter. and secure them by turning the inner filter clockwise until it clicks into place.
  • Page 36 36 MAINTENANCE After cleaning the upper spray arm, press it up into place. Turn the nut 1/8 turn clockwise to make sure that the nut locks back into place. CAUTION • To avoid breaking the rolling spray arm sections, do not pull or manually rotate them. Cleaning the Upper Spray Arm After assembly, make sure that the spray arms rotate freely.
  • Page 37: Troubleshooting

    LG dishwashers are designed to be used in conjunction with a rinse aid. Using a rinse aid will maximize the amount of water that has already been sheeted away from the dishes before the dry cycle begins.
  • Page 38 No, you don't need to pre-rinse the dishes before loading especially if using the Normal and Auto cycles. The dishwasher washes dishes clean without pre-rinsing. User Support Videos For further assistance, there are videos and tutorials available through the LG.com website.
  • Page 39 TROUBLESHOOTING On the www.lg.com home page, click on the Support menu tab to bring up the menu selections. Select Video Tutorials. Select a product category and then pick a topic or search a keyword. NOTE • Scan this QR code to quickly access the video search page on the LG website.
  • Page 40 40 TROUBLESHOOTING Problem Possible Cause & Solution Thermistor failure. • Please call an LG Electronics Customer Information Center at 1-800-243-0000 (U.S.A.) 1- 888-542-2623 (Canada). Motor trouble • Please call an LG Electronics Customer Information Center at 1-800-243-0000 (U.S.A.) 1- 888-542-2623 (Canada).
  • Page 41 TROUBLESHOOTING Problem Possible Cause & Solution Lights do not Power is not connected. illuminate. • Connect power supply. Spray arms do not Holes of spray arms are blocked by food particles. rotate smoothly. • Clean the holes of spray arms. Upper rack is Rack is poorly adjusted.
  • Page 42 42 TROUBLESHOOTING Problem Possible Cause & Solution Food soil remains on Improper cycle selection. dishes. • Select correct cycle based on soil level and type of dishware being washed. Water temperature is too low. • Check water supply connection or water heater setting. Dishwashing detergent was not used.
  • Page 43: Limited Warranty

    Should your LG Dishwasher fail due to a defect in materials or workmanship under normal home use, during the warranty period set forth below, LG will at its option repair or replace the product. This limited warranty is valid only to the original retail purchaser of the product and applies only when purchased and used within the United States, including U.S.
  • Page 44 TO OBTAIN WARRANTY SERVICE AND ADDITIONAL INFORMATION For additional product information, visit the LG website at http://www.lg.com For assistance using this product or to schedule service, contact LG Electronics at 1-800-243-0000. For further assistance, write: LG Electronics, 201 James Record Road, Huntsville, Alabama 35813...
  • Page 45 Notice of Dispute. In the event you intend to commence an arbitration proceeding, you must first notify LG in writing at least 30 days in advance of initiating the arbitration by sending a letter to LG at LG Electronics, USA, Inc. Attn: Legal Department- Arbitration 111 Sylvan Avenue, Englewood Cliffs, NJ 07632.
  • Page 46 46 LIMITED WARRANTY provided for, LG waives any rights it may have to seek attorneys’ fees and expenses from you if LG prevails in the arbitration. Hearings and Location. If your claim is for $25,000 or less, you may choose to have the arbitration conducted solely on the basis of (1) documents submitted to the arbitrator, (2) through a telephonic hearing, or (3) by an in-person hearing as established by the AAA Rules.
  • Page 47 Memo...
  • Page 48 LG Customer Information Center For inquiries or comments, visit www.lg.com or call: U.S.A. 1-800-243-0000 1-888-542-2623 CANADA Register your product Online! www.lg.com...

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