LG LW1816HR User Manual (English)

Questions and Answers:

J
jeremy71Aug 12, 2025
How to troubleshoot an LG Air Conditioner that does not start?
- G
  Gloria TurnerAug 12, 2025
  If your LG Air Conditioner isn't starting, first ensure it's fully plugged into the outlet. Check your house's fuse or circuit breaker box and replace the fuse or reset the breaker if needed. If there was a power failure, turn the mode control to off, and wait 3 minutes after power is restored before restarting to prevent compressor overload. Also, check the current interrupter device; press the RESET button on the power cord plug. If it won't stay engaged, stop using the unit and contact a qualified technician.
K
kwilliamsAug 16, 2025
Why is my LG LW1816HR Air Conditioner not cooling properly?
- J
  James JensenAug 16, 2025
  If your LG Air Conditioner isn't cooling properly, make sure nothing is blocking the front of the unit, such as curtains, blinds, or furniture. Ensure the temperature is set lower than the current room temperature. Clean the air filter every 2 weeks, as a dirty filter restricts airflow. If the room was hot, allow time for it to cool down after turning on the unit. Check for open furnace floor registers or cold air returns that might be letting cold air escape. Finally, inspect for iced-up cooling coils; set the mode control at High Fan or High Cool.
A
Aaron RamirezAug 23, 2025
Why isn’t my LG LW1816HR Air Conditioner connecting to the Wi-Fi?
- K
  Kyle CruzAug 23, 2025
  If your LG Air Conditioner is not connecting to Wi-Fi, the Wi-Fi router might be too far away. Try moving the router closer to the air conditioner or consider installing a Wi-Fi repeater (signal booster). Also, ensure you're selecting the correct wireless router and that it is set to 2.4 GHz.
J
Janet WilsonAug 27, 2025
What causes an LG Air Conditioner to start freezing up?
- T
  Thomas SheltonAug 27, 2025
  If your LG Air Conditioner is freezing up, it's likely due to iced-over cooling coils. Ice can block airflow and prevent the unit from cooling the room effectively. Set the mode control to High Fan or High Cool to address this.
S
Sarah NealAug 30, 2025
Why does my LG Air Conditioner turn on and off rapidly?
- A
  Austin BarronAug 30, 2025
  If your LG Air Conditioner turns on and off rapidly, a dirty air filter could be restricting airflow; try cleaning it. If the outside temperature is extremely hot, refer to the installation instructions or check with the installer.
B
Brian WoodsSep 3, 2025
Why is the remote sensing deactivating prematurely on my LG LW1816HR Air Conditioner?
- G
  Gabrielle MolinaSep 3, 2025
  If remote sensing is deactivating prematurely on your LG Air Conditioner, ensure the remote control is within 20 feet and a 120° radius of the unit's front. Also, make sure there are no obstructions blocking the remote control signal.
A
andrewjohnsonSep 7, 2025
Why am I having trouble connecting my LG appliance and smartphone to the Wi-Fi network?
- S
  steven55Sep 7, 2025
  If you're experiencing trouble connecting your LG appliance and smartphone to a Wi-Fi network, double-check that you've entered the correct Wi-Fi password. If not, delete your home Wi-Fi network and begin the registration process again. Make sure the Mobile data on your smartphone is turned off during registration. The wireless network name (SSID) should only use English letters and numbers, avoiding special characters. Verify that your router frequency is set to 2.4 GHz, as only this frequency is supported. If the appliance is too far from the router, move it closer or install a Wi-Fi repeater to improve the signal.
Y
ybutlerSep 10, 2025
Why is my LG LW1816HR making noise when cooling?
- M
  michael70Sep 12, 2025
  Some noise during cooling with your LG unit is normal due to air movement. If it's too loud, try setting the FAN to a lower setting. Window vibration might also cause noise, indicating poor installation. In this case, refer to the installation instructions or consult with the installer.

LG LW1816HR Specifications

General

Type	window
Color	white
Operating Area Size	1000 square feet
Cooling Capacity	18000 british thermal units
Cooling Settings	3
Heater	yes
Heating Capacity	12000 british thermal units
Fan Speeds	2
Fan Airflow Rate	430 cubic feet per minute
Noise Level	61 decibels adjusted
Remote Control	yes
Timer	yes
Sleeping Mode	yes
Control Type	touchpad
Energy Efficiency	11.2
Voltage	230
Current	7.2 amperes
Depth	25.5 inches
Height	16.9 inches
Width	30.5 inches
Net Weight	126.1 pounds

Summary

Safety Instructions

Understanding Safety Alerts and Warnings

Explains safety alert symbols, WARNING, and CAUTION messages.

Installation Safety Precautions

Covers safety measures for installing the air conditioner unit.

Operation Safety Precautions

Outlines essential safety guidelines for operating the appliance.

Grounding Instructions

Details proper grounding methods to prevent electric shock hazards.

Cautionary Measures

Installation Cautions

Specific warnings for installation to prevent injury or damage.

Operation Cautions

Precautions for safe operation to prevent minor injury or malfunction.

Maintenance Cautions

Safety advice for performing maintenance tasks on the unit.

Product Overview

Exterior Parts Identification

Identifies and labels the external components of the air conditioner.

Interior Parts Identification

Identifies and labels the internal components of the air conditioner.

Installation

Electrical Data and Requirements

Specifies electrical requirements, power cord, and circuit protection.

Electrical Safety Warnings

Details critical warnings regarding extension cords and electrical connections.

Included Parts List

Lists all parts included with the air conditioner for installation.

Required Tools for Installation

Lists the necessary tools for proper installation of the unit.

Unit Installation Steps

Step-by-step guide for installing the air conditioner unit into the window.

Window Compatibility Requirements

Specifies the window size and type requirements for installation.

Storm Window Installation Adjustments

Instructions for adapting installation for storm windows.

Cabinet Preparation and Seals

Details cabinet removal, panel attachment, and window seal application.

Cabinet Installation and Sill Securing

Guides for attaching the cabinet to the window sill and bottom pan drainage.

Final Unit Placement and Securing

Steps for inserting the unit and securing curtain panels to window sashes.

Window Locking Bracket Installation

Instructions for installing a locking bracket on specific window types.

Front Grille and Inlet Grille Installation

Steps for attaching the front grille and inlet grille to the unit.

Operation Controls

Control Panel Functions

Explains the functions of buttons on the air conditioner's control panel.

Remote Control Functions

Describes the operations and modes controllable via the remote.

Operation Features

Wi-Fi Connectivity and ThinQ App

Details connecting the unit to Wi-Fi via the LG ThinQ app.

Filter Reset and Temperature Control

Covers filter reset indicator and setting temperature controls.

Auto Swing and Remote Battery Installation

Explains auto swing feature and remote control battery installation.

Airflow and Ventilation

Ventilation Operation Modes

How to use the vent lever for fresh air intake or recirculation.

Airflow Direction Adjustment

Adjusting horizontal and vertical airflow louvers.

Slinger Fan and Drain Pipe Features

Explains the slinger fan for efficiency and drain pipe usage.

Smart Functions

LG ThinQ Application Setup

Steps to connect the air conditioner with the LG ThinQ app.

Smart Diagnosis Feature

How to use the Smart Diagnosis feature to troubleshoot issues.

ThinQ App Installation and Software Notice

Guide for downloading the app and information on open source software.

Using ThinQ for Diagnostics

Instructions for using the LG ThinQ app to diagnose appliance issues.

Regulatory Information

FCC Compliance and Warnings

Explains compliance with FCC rules for the transmitter module.

RF Exposure and Wireless Module Specs

Details RF exposure statement and wireless LAN module specifications.

Maintenance

Air Filter Cleaning Procedure

Step-by-step guide for cleaning the air filter.

Air Conditioner Exterior Cleaning

Instructions for cleaning the exterior parts of the unit.

Troubleshooting

Pre-Service Troubleshooting Checks

Actions to take before calling for service to diagnose issues.

Understanding Normal Operating Sounds

Identifies common sounds the unit may make during normal operation.

Unit Not Starting or Cooling Issues

Addresses problems with unit startup, cooling performance, and freezing.

Water Management and Noise Troubleshooting

Troubleshooting steps for indoor water drips, base pan water, and operating noise.

Connectivity and Wi-Fi Troubleshooting

Guides for resolving issues with the LG ThinQ app and Wi-Fi connection.

Wi-Fi Connection Troubleshooting

Specific solutions for appliance and smartphone Wi-Fi connection problems.

Warranty Information

Warranty Coverage, Period, and Exclusions

Details what the limited warranty covers, its duration, and exclusions.

Obtaining Service and Record Keeping

Information on how to get warranty service and record product details.

Dispute Resolution

Arbitration Agreement and Procedures

Outlines the binding arbitration agreement and procedural rules for resolving disputes.

Arbitration Fees, Hearings, and Opt-Out

Explains arbitration fees, hearing options, and the procedure for opting out.

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LG LW1816HR User Manual

Table of Contents

Questions and Answers:

LG LW1816HR Specifications

Summary

Safety Instructions

Understanding Safety Alerts and Warnings

Installation Safety Precautions

Operation Safety Precautions

Grounding Instructions

Cautionary Measures

Installation Cautions

Operation Cautions

Maintenance Cautions

Product Overview

Exterior Parts Identification

Interior Parts Identification

Installation

Electrical Data and Requirements

Electrical Safety Warnings

Included Parts List

Required Tools for Installation

Unit Installation Steps

Window Compatibility Requirements

Storm Window Installation Adjustments

Cabinet Preparation and Seals

Cabinet Installation and Sill Securing

Final Unit Placement and Securing

Window Locking Bracket Installation

Front Grille and Inlet Grille Installation

Operation Controls

Control Panel Functions

Remote Control Functions

Operation Features

Wi-Fi Connectivity and ThinQ App

Filter Reset and Temperature Control

Auto Swing and Remote Battery Installation

Airflow and Ventilation

Ventilation Operation Modes

Airflow Direction Adjustment

Slinger Fan and Drain Pipe Features

Smart Functions

LG ThinQ Application Setup

Smart Diagnosis Feature

ThinQ App Installation and Software Notice

Using ThinQ for Diagnostics

Regulatory Information

FCC Compliance and Warnings

RF Exposure and Wireless Module Specs

Maintenance

Air Filter Cleaning Procedure

Air Conditioner Exterior Cleaning

Troubleshooting

Pre-Service Troubleshooting Checks

Understanding Normal Operating Sounds

Unit Not Starting or Cooling Issues

Water Management and Noise Troubleshooting

Connectivity and Wi-Fi Troubleshooting

Wi-Fi Connection Troubleshooting

Warranty Information

Warranty Coverage, Period, and Exclusions

Obtaining Service and Record Keeping

Dispute Resolution

Arbitration Agreement and Procedures

Arbitration Fees, Hearings, and Opt-Out

Related product manuals