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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.
EN
ENGLISH
XD74*
XD89**
XD77*
XD90**
XD88**
MFL70282405
Rev.00_030218
Copyright © 2018 LG Electronics Inc. All Rights Reserved.
www.lg.com

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Summarization of Contents

SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
Crucial safety guidelines to prevent risks and damage during operation.
INSTALLATION GUIDE
Specifications and Dimensions
Technical details, model specifications, and physical dimensions of the dishwasher.
Accessories
List and description of optional accessories included with the appliance.
Preparing Cabinet Opening
Instructions for preparing the space where the dishwasher will be installed.
Moisture Barrier Tape Installation
Guide for applying moisture barrier tape to protect the countertop from condensation.
Levelling the Appliance
Steps to ensure the dishwasher is stable and level for optimal performance.
Installing the Drain Hose
Instructions on how to properly connect the drain hose for water removal.
Connecting the Water Supply Hose
Steps for securely connecting the water supply hose to the appliance.
Electrical Wiring and Power Connection
Guidelines for safely connecting the dishwasher to the electrical power supply.
Installation Final Checks
Steps to verify correct installation and initial appliance operation.
OPERATION AND USAGE
Initial Setup and Water Hardness
Pre-operation checks, setting water hardness, and using the softener system.
Salt and Rinse Aid Management
How to fill dishwasher salt and rinse aid, and adjust settings.
Using the Appliance
Steps to start and operate the dishwasher, including basic checks and indicators.
Control Panel Overview
Explanation of the control panel buttons, indicators, and display.
Understanding Wash Cycles
Detailed description of each available wash cycle and their functions.
Cycle Options Explained
Overview of additional options like Dual Zone, Half Load, and Delay Start.
Special Features: Auto Open Dry & SignaLight
Information on Auto Open Dry and SignaLight status indicators for enhanced functionality.
Programme Guide and Options
Tables detailing programmes, options, and energy test information.
Loading the Dishwasher Racks
Proper techniques for loading dishes in the upper and lower racks for optimal cleaning.
Cutlery Loading and Rack Adjustment
Guidance on loading cutlery and adjusting the upper rack height for different dish sizes.
Adding Detergent and Refills
Instructions on adding detergent, refilling salt, and checking rinse aid levels.
Drying Performance Tips
Advice for improving drying efficiency and common drying issues.
SMART FUNCTIONS & CONNECTIVITY
LG SmartThinQ App Usage
Guide to connecting and operating the dishwasher using the LG SmartThinQ mobile application.
Wi-Fi Setup and Troubleshooting
Instructions for Wi-Fi connection, network requirements, and common issues.
Smart Diagnosis™ Guide
How to use the Smart Diagnosis feature for effective troubleshooting and service.
MAINTENANCE AND CLEANING
Appliance Exterior and Interior Cleaning
Procedures for cleaning the outside and inside surfaces of the dishwasher.
Seasonal Maintenance and Storage
Guidelines for maintaining the appliance during periods of non-use or seasonal changes.
Filter and Spray Arm Cleaning
Detailed steps for removing and cleaning the appliance's filters and spray arms.
Water Supply Hose Filter Cleaning
Steps for inspecting and cleaning the filter in the water supply hose connection.
TROUBLESHOOTING AND ERROR CODES
Common Problem Diagnosis
A systematic guide to identifying and resolving typical dishwasher operational issues.
Error Code Reference
A list of error codes displayed by the appliance, with their meanings and solutions.

Table of Contents