LG DFC425FM Owner's Manual
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LG DFC425FM Owner's Manual

LG DFC425FM Owner's Manual

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OWNER'S MANUAL
DISHWASHER
Before beginning installation, read these instructions
carefully. This will simplify installation and ensure that the
product is installed correctly and safely. Leave these
instructions near the product after installation for future
reference.
ENGLISH
DFC425**
MFL71916171
Rev.02_012325
Copyright © 2023-2025 LG Electronics. All Rights Reserved
Scan the QR code to see the manual.
www.lg.com

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Summary of Contents for LG DFC425FM

  • Page 1 Before beginning installation, read these instructions carefully. This will simplify installation and ensure that the product is installed correctly and safely. Leave these instructions near the product after installation for future reference. ENGLISH DFC425** www.lg.com MFL71916171 Rev.02_012325 Copyright © 2023-2025 LG Electronics. All Rights Reserved...

  • Page 2: Table Of Contents

    Control Panel ....................26 Wash Cycles ......................27 Options and Extra Functions ................28 Programme Table ....................30 Information for Test ..................32 Loading the Dishwasher .................33 Adding Cleaning Agents..................39 Refilling......................40 Useful Tips......................40 SMART FUNCTIONS LG ThinQ Application ..................42 Smart Diagnosis ....................44 MAINTENANCE Cleaning and Caring ..................46...
  • Page 3 TROUBLESHOOTING Before Calling for Service................51...

  • Page 4: Safety Instructions

    SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance. The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below. Safety Messages This symbol is displayed to indicate matters and operations that can cause risk.

  • Page 5: Installation

    • Do not modify the power cord provided with the appliance. Please contact the LG Customer information centre to advise of its incompatibility. • This appliance should only be transported by two or more people holding the appliance securely.

  • Page 6: Operation

    • Connect the ground wire to the green ground connector in the terminal box. Operation • Immediately unplug the power plug and contact an LG Electronics customer information centre if you detect a strange sound, odour, or smoke coming from the appliance.
  • Page 7 • In case of flood, disconnect the power plug and contact the LG Electronics Customer Information Centre. • Under certain conditions, hydrogen gas may be produced in a hot- water system that has not been used for two weeks or more.
  • Page 8 SAFETY INSTRUCTIONS • Do not operate the appliance unless all enclosure panels are properly in place. • Use only detergents or wetting agents recommended for use in a appliance and keep them out of the reach of children. • Do not wash and dry articles that have been soaked in explosive substances such as gasoline, solvents, solvent-based detergent.

  • Page 9: Caution

    SAFETY INSTRUCTIONS • Do not touch the heat dry blower. During operation, after cycles complete and for periods after operation the heat dry blower can remain extremely hot so you should not touch the area. (Only for models with a heat dry blower.) Maintenance •...
  • Page 10 SAFETY INSTRUCTIONS Installation • Install the product on a firm and level floor. • Do not put the drain hose under the dishwasher during installation. Operation • Turn off the water tap and unplug the appliance if the appliance is to be left for an extended period of time, such as during vacations.

  • Page 11: Installation Parts And Specifications

    INSTALLATION INSTALLATION Parts and Specifications NOTE • Appearance and specifications may change without notice to improve the quality of the appliance. Front View Interior View Control Panel & Door Handle Top Wash Impeller Front Cover Upper Spray Arm Lower Cover Lower Spray Arm Levelling Feet Salt Dispenser Cap...

  • Page 12: Specifications

    INSTALLATION Accessories Funnel Noise Strip Cover Felt Moisture Barrier Tape (Aluminum tape) *1 Noise strips are provided: Lower - 1 EA, Front - 1 EA, Side - 2 EA *2 This feature is only available on some models. Specifications Model DFC425** Power Supply 220 - 240 V~, 50 Hz...

  • Page 13: Preparing Cabinet Opening

    INSTALLATION Preparing Cabinet Opening • Install the appliance on a flat and stable area. Do not place any objects in-between the floor and base or leg off the appliance. Choosing the Proper Location NOTE • This installation must be conducted by qualified service personnel to ensure it has been installed correctly.
  • Page 14 INSTALLATION Lay down the appliance and pull on both the Remove the double-sided tape from the lower hooks at the bottom of the lower cover. and front strips. Attach the black coloured lower strip to the bottom of the lower cover. Pull on the lower cover to remove it.

  • Page 15: Removing The Top Cover

    INSTALLATION Attaching the Strip to the Remove the 2 screws on the back. Appliance Side Cabinet To reduce noise attach the strip to the appliance sides, if the opening space allows. Remove the double-side tape from the side strips. Pull the top cover backwards after removing the two screws and then lift it up to remove it.

  • Page 16: Levelling The Appliance

    INSTALLATION Levelling the Appliance NOTE Checking the Level • If the counter top is made of granite or waterproof materials, the moisture barrier tape is not required. Levelling the appliance prevents unnecessary leakage and poor washing. Check whether the • Condensation may occur on the underside or appliance is perfectly level after installation.

  • Page 17: Installing The Drain Hose

    INSTALLATION Installing the Drain Hose Check the opening of door and repeat if necessary until the door opens and closes If the end of the drain hose does not fit to the drain properly. line, use a drain extension kit (optional) that is resistant to heat and detergent.

  • Page 18: Preparing Water And Electrical Connections

    INSTALLATION Preparing Water and Method 1 Electrical Connections When the drain hose is connected to a waste spigot, the hose must be looped up to the underside of the bench top and secured. Connecting the Hose to the Water Tap Connect the water supply hose to the water tap.

  • Page 19: Final Installation Check

    INSTALLATION Final Installation Check • Use sealant tape or sealing compound on the tap’s thread to avoid water leaks. Testing the Dishwasher • Make sure that the line is not kinked or sharply bent. Turn on electrical power. NOTE • Before connecting the water supply hose to the Turn on house water supply.
  • Page 20 INSTALLATION Error Possible Cause and Solution Code Water supply line kinked under dishwasher. • Feed the drainage and supply hoses through the hole under the sink. Then gradually slide the dishwasher into the cabinet while pulling on the hoses under the sink to take up any slack.

  • Page 21: Operation Operation Overview

    OPERATION OPERATION Operation Overview Load the dishes in the rack. • Make certain that no dishes or utensils are in Using the Appliance the path of the spray arms. • Do not place one dish on top of another. Open the door and press the Power button. •...

  • Page 22: Before Using

    OPERATION Set the softening system level of the appliance NOTE according to the water hardness level. • Never use liquid dishwashing detergent in the appliance. Method 2 • It is not recommended to rinse the dishes You can check water hardness by using the test manually before operating the dishwasher strip included in the product.

  • Page 23: Water Hardness Table

    OPERATION Water Hardness Table Water Hardness Softeni Ratio mmol/l mg/l ng level °d °e °f Range (Ca+Mg) (Ca) <4 <5 <7 <0.7 <29 Soft 4 - 7 5 - 9 7 - 13 0.7 - 1.3 29 - 50 1:24 7 - 14 9 - 17.5 13 - 25...

  • Page 24: Adding Rinse Aid

    OPERATION as any spilled salt inside the appliance may cause Remove the lower rack and remove the cap of rust or damage to the appliance if the left the salt dispenser located on the left side of the unwashed. filters. Before using the appliance for the first time, it is necessary to pour 1 kg of dishwasher salt and 1 litre of water at the same time if...

  • Page 25: Setting The Rinse Aid Level

    OPERATION Close the lid to lock the dispenser. Rinse aid is NOTE dispensed automatically during the final rinse • The Rinse Aid Refill icon will illuminate when cycle. more rinse aid is needed. CAUTION • If you notice cloudy spots, streaks or water marks on the glassware after washing, increase •...

  • Page 26: Control Panel

    OPERATION Control Panel Control Panel Features For Steam Models Power • Press Power button to turn power on and off. • After the cycle is complete, the power automatically turns off for purposes of safety and economy. • If there is a power surge, power outage, or disruption of any kind, power is automatically turned off for safety.

  • Page 27: Wash Cycles

    OPERATION Chime On/Off • To activate or deactivate the button sounds, press and hold Dual Zone and Energy Saver simultaneously for 3 seconds. The error alert sound cannot be turned off. Cancel • The drain pump activates and the cycle cancels. Once the appliance finishes draining, the power turns off.

  • Page 28: Options And Extra Functions

    OPERATION maintain wash results. Do not use this cycle with NOTE heavily soiled dishes. • Do not use detergent with this option. Steam • This cycle does not have drying. This feature is only available on some models. This option adds steam during the cycle to improve wash results.
  • Page 29 OPERATION SignaLight™ Wi-Fi Press and hold Delay Start for 3 seconds to connect to the network. Refer to SMART This feature may vary depending on the model purchased. FUNCTIONS sections for detailed information about this feature. SignaLight™ shows the status of the appliance, whether it has encountered any problems, whether it is operating normally, or whether it is ready to wash dishes.

  • Page 30: Programme Table

    OPERATION Programme Table Programme Guide On DFC425** Models Wash Rinse Program Soil Level Pre-wash Main wash Rinse Heating rinse Auto All levels (65 - 70 ℃) (70 ℃) Intensive Heavy (75 ℃) (70 ℃) Delicate Light (55 ℃) (70 ℃) Refresh (75 ℃) Moderate...
  • Page 31 OPERATION Regulation for Europe(On DFC425** Models) Water Consumption Energy Consumption Programme Duration (min) (kWh) Auto 13.1 1.08 - 1.17 Intensive 23.9 1.76 Delicate 16.8 1.14 0.95 0.78 Refresh Turbo 18.8 0.87 Express 12.4 0.61 Rinse 0.01 Machine Clean 12.1 0.75 *1 For Steam Models NOTE •...

  • Page 32: Available Options

    OPERATION Available Options NOTE • The Energy Saver option is not available with the High Temp. or Extra Dry option. • The Delay Start option can be selected for every washing programme in this table. For Steam Models Programm Energy Dual Zone Half Load Steam...

  • Page 33: Loading The Dishes

    OPERATION Loading the Dishes Cups Saucers • Correct loading is done in accordance with the images provided in this chapter. Large bowl • Incorrect loading may result in lower drying or Medium bowl cleaning performance. Cutlery Rack Lower Rack Small bowl Dinner plates (Meat) Dinner plates (Egg) Soup plates...

  • Page 34: Items Not Suitable For Dishwashers

    OPERATION • Make sure that all items do not touch each other. To make it easier to load larger dishes, the front row of tines can be folded down. Items not Suitable for Dishwashers The combination of high water temperature and dishwasher detergents may damage certain items.

  • Page 35: Loading The Upper Rack

    OPERATION Loading the Upper Rack CAUTION Daily Use Load • The spray arms must not be blocked by items that are too tall or hang through the baskets. The upper rack is suitable for delicate items such Test for free movement by manually rotating the as, small plates, long cutlery, cups, glasses and spray arms.

  • Page 36: Height Adjustable Upper Rack

    OPERATION • The rack on the left pops free at the back. There are three available positions for adjusting The rack on the right pops free at the front. the height of the upper rack to create more space. Lowering the Rack Hold the rack at the centre of each side to support its weight.

  • Page 37: Loading The Cutlery Basket

    OPERATION Possible plate size according to the • When the upper rack is in the lower position, push in the upper rack first, and the lower rack upper rack position later. • Pull out the lower rack first, and the upper rack Plate Size (mm) later.

  • Page 38: Height Adjustable Tray

    OPERATION If the handles of your cutlery are too thick, then CAUTION reverse the pieces so that the handles face the other direction. • The cutlery shouldn’t be longer than 18 cm. Height Adjustable Tray The tray on the left side can be adjusted to a high or low position to accommodate utensils or cutlery of different sizes.

  • Page 39: Adding Cleaning Agents

    OPERATION Push the detergent lid to slide the lid closed WARNING until it clicks. • Be careful when loading and unloading items with sharp edges. Load sharp knives with the blade down to reduce the risk of injury. Adding Cleaning Agents Adding Detergent to the If a prewash is desired, fill the recessed Dispenser...

  • Page 40: Refilling

    OPERATION Refilling CAUTION To maintain the effective dry results, check and • Use only detergent intended for dishwashers. refill rinse aid regularly. Incorrect detergent may cause the appliance to To maintain the effective wash results, check and fill with suds during operation. Excess suds may refill dishwasher salt regularly.

  • Page 41: Unloading The Dishwasher

    OPERATION on the volume of dishes, in this case use the Extra Dry option or set the rinse level. • We recommend activating this function on models with automatic door opening. Unloading the Dishwasher • Before unload the dishes, check if the dishes cooled down to hand-warm condition.

  • Page 42: Smart Functions

    Search for and install the LG ThinQ application problems, you have the option of receiving push notifications on a smartphone. The notifications from the Google Play Store or Apple App Store on a smartphone. are triggered even if the LG ThinQ application is off.

  • Page 43: Wireless Lan Module Specifications

    SMART FUNCTIONS • Smartphone user interface (UI) may vary Run the LG ThinQ application and sign in with depending on the mobile operating system (OS) your existing account or create an LG account and the manufacturer. to sign in. • If the security protocol of the router is set to WEP, you may fail to set up the network.

  • Page 44: Declaration Of Conformity

    Directive 2014/53/EU. The full text of the EU LG ThinQ application. declaration of conformity is available at the following internet address: • Launch the LG ThinQ application and select the Smart Diagnosis feature in the menu. Follow http://www.lg.com/global/support/cedoc/cedoc# the instructions provided in the LG ThinQ application.

  • Page 45: Customer Care And Service

    Customer Care and Service Contact an LG Electronics customer information centre. • To find an LG Electronics authorised service personnel, visit our website at www.lg.com and follow the instructions found there. • Self-repair is not recommended as it could further damage the device and void the guarantee.

  • Page 46: Maintenance

    MAINTENANCE MAINTENANCE To maintain performance and prevent problems, chemicals can cause the internal tub to leave a check the outside and inside of the appliance, white stain or the appearance of rust. including filters and spray arms regularly. Food residue may be stuck in the narrow gaps inside the appliance after completion of washing.

  • Page 47: Cleaning The Filters

    MAINTENANCE Using White Vinegar Clean the filters with a soft brush under If you cannot find citric acid powder, pour running water. Reassemble the filters before approximately 3/4 - 1 1/4 cups (200 - 300 mL) of reinstalling them. white vinegar into shallow bowl and place in upper rack.

  • Page 48: Cleaning The Upper Spray Arm

    MAINTENANCE Cleaning the Upper Spray Arm NOTE • When inserting the filter, close it firmly until you Pull the upper rack forward. Make sure that the hear it click into place. water jet holes are not blocked by food particles. When cleaning is necessary, remove the upper spray arm by turning the nut on the bottom of the spray arm 1/8 turn counterclockwise and...
  • Page 49 MAINTENANCE After cleaning the upper spray arm, press it up Remove the seal and the plastic filter with a into place. Turn the nut 1/8 turn clockwise to pair of small pliers or scissor grips. make sure that the nut locks back into place. After assembly, check whether the spray arms Clean the filter under running water with a rotate freely.

  • Page 50: Seasonal Maintenance And Storage

    MAINTENANCE Seasonal Maintenance and Storage • If you will be absent for an extended period of time during warmer months, close the water valve and unplug the power cord, or turn off the circuit breaker. Clean the filter, tub and dispenser to prevent odour.

  • Page 51: Troubleshooting

    The appliance is equipped with an automatic error-monitoring system to detect and diagnose problems at an early stage. If this appliance does not function properly or does not function at all, check the following before you call LG Electronics service centre. Symptoms Possible Cause &...
  • Page 52 TROUBLESHOOTING Symptoms Possible Cause & Solution Motor trouble • Call for service if the same problem occurs again. Vario motor trouble • Call for service if the same problem occurs again. Operation Symptoms Possible Cause & Solution Noise Some level of noise is normal during operation. •...
  • Page 53 TROUBLESHOOTING Symptoms Possible Cause & Solution Water remains in sump Water may remain if the power supply was lost before normal end of the after completion of course or was manually disconnected. cycle. • Re-start the course. Sprays arms do not Holes of spray arms are blocked by food particles.
  • Page 54 TROUBLESHOOTING Symptoms Possible Cause & Solution Yellow or brown film Coffee or tea stains on inside surfaces of • Eliminate the stain by using a stain removal product. appliance Yellow water remains When initially using the appliance, Yellow water may generate in the inside the dishwasher.
  • Page 55 TROUBLESHOOTING Symptoms Possible Cause & Solution Odour There is food in the bottom of the unit or in the filter. • Clean the filter and the interior according to the MAINTENANCE section of the owner’s manual. Unwashed dishes are left in the unit for a long time. •...
  • Page 56 • Find the Wi-Fi network connected to your smartphone and remove it, then not connected to the register your appliance on LG ThinQ. Wi-Fi network. Mobile data for your smartphone is turned on. • Turn off the Mobile data of your smartphone and register the appliance using the Wi-Fi network.
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Dfc425 series

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