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LG ARNU073TAA4 Owner's Manual
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OWNER'S MANUAL
AIR CONDITIONER
Read this owner's manual thoroughly before operating the
appliance and keep it handy for reference at all times.
ENGLISH
ARNU073TAA4
www.lg.com
MFL72017419
Copyright © 2023 LG Electronics Inc. All Rights Reserved.
Rev.00_050323

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Summary of Contents for LG ARNU073TAA4

  • Page 1 Scan to see the online manual. OWNER'S MANUAL AIR CONDITIONER Read this owner's manual thoroughly before operating the appliance and keep it handy for reference at all times. ENGLISH ARNU073TAA4 www.lg.com MFL72017419 Copyright © 2023 LG Electronics Inc. All Rights Reserved. Rev.00_050323...
  • Page 2: Table Of Contents

    13 Using the Appliance with Remote Control 14 SMART FUNCTIONS LG ThinQ Application 14 LG ThinQ Application Features 14 Before Using LG ThinQ Application 15 Installing LG ThinQ Application 15 Open Source Software Notice Information 15 Radio Equipment Specifications 16 MAINTENANCE...
  • Page 3: 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 4: Notes For Flammable Refrigerant

    SAFETY INSTRUCTIONS Notes for Flammable Refrigerant The following symbols are displayed on units. This symbol indicates that this appliance uses a flammable refrigerant. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire. This symbol indicates that the Owner's Manual should be read carefully.
  • Page 5: Operation

    • Do not install the product on a defective installation stand. • Be sure the installation area does not deteriorate with age. • Be sure to only use accessories made by LG which are specifically designed for use with the equipment and have them installed by a professional.
  • Page 6: Wireless Remote Control

    SAFETY INSTRUCTIONS • In the event of a gas leak (such as Freon, propane gas, LP gas, etc.) ventilate sufficiently before using the air conditioner again. • Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.
  • Page 7 SAFETY INSTRUCTIONS • Install the drain hose properly for the smooth drainage of water condensation. • Install the air conditioner in a place where the noise from the outdoor unit or the exhaust fumes will not inconvenience the neighbors. • Safely dispose of packing materials such as screws, nails, plastic bags or batteries using proper packaging after installation or repair.
  • Page 8 SAFETY INSTRUCTIONS • Always insert the filter securely. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage. SAVE THESE INSTRUCTIONS...
  • Page 9: Operation

    OPERATION OPERATION Before Use Notes for Operation • Adjust the direction of the airflow vertically to circulate indoor air. • Speed up the fan to cool or warm indoor air quickly, within a short period of time. • Turn off the appliance and periodically open windows for ventilation. The indoor air quality may deteriorate if the appliance is used for long periods.
  • Page 10: Product Overview

    10 OPERATION Product Overview 4 Way Cassette Dual Vane Type Operating Status Lamp and Remote Control Receiver Displays the operating status and contains the receiver for the wireless remote. Forced Operation Button Operates the product when the remote control can't be used. Air Intake/Air Filter •...
  • Page 11 OPERATION Normal Type Operating Status Lamp and Remote Control Receiver Displays the operating status and contains the receiver for the wireless remote. Forced Operation Button Operates the product when the remote control can't be used. Air Intake/Air Filter • Air Intake: Takes in air from the room. •...
  • Page 12: Display

    12 OPERATION Display • If you want to set or disable the auto restart function, press and hold the Forced Operation Button for 15 seconds. Operating Status Lamp Color Description 1) Cooling or Heating mode 2) Hot start or defrost mode Green before starting heating mode...
  • Page 13: Using The Appliance With Remote Control

    Follow these steps to see a detailed guide for using the product with the remote control. Click the below website address. • www.lg.com Insert the model name in the search box. • The model name is on the remote control or printed on the box in which the remote control is packed.
  • Page 14: Smart Functions

    Internet service provider or refer to your wireless router manual. NOTE • LG ThinQ is not responsible for any network • If you change your wireless router, internet connection problems or any faults, malfunctions, service provider, or password, delete the or errors caused by network connection.
  • Page 15: Installing Lg Thinq Application

    SMART FUNCTIONS Installing LG ThinQ Application Search for the LG ThinQ application from the Google Play Store or Apple App Store on a smartphone. Follow instructions to download and install the application. Open Source Software Notice Information To obtain the source code that is contained in this...
  • Page 16: Maintenance

    16 MAINTENANCE MAINTENANCE Cleaning NOTE • Never use water that is hotter than 40 ℃ when Cleaning Interval you clean the filters. Doing so may cause deformation or discolouration. • Never use volatile substances when you clean the filters. Doing so may damage the surface of the appliance.
  • Page 17: Cleaning The Air Filter

    MAINTENANCE Cleaning the Air Filter WARNING • Wear gloves during the work. • Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops. CAUTION • When you remove the air filter, do not touch the metal parts of the indoor unit.
  • Page 18 18 MAINTENANCE Cleaning the Air Filter Clean the air filter with a vacuum cleaner or wash it with lukewarm water and a mild detergent. WARNING Dry the filter in the shade. • Don't touch the PM1.0 Filter within 10 seconds after opening the front grille.
  • Page 19 MAINTENANCE 2) Dry in the shade for about a day. • If you assemble the PM1.0 filter with moisture remaining, 7 beeps will sound. CAUTION • Do not use hot water over 40 or volatile liquids. • Do not use acidic detergents such as citric acid. •...
  • Page 20 20 MAINTENANCE Press the centre of the left and right sides Insert the clips into the hooking holes on the once. bottom of front grile. Close up the front grille to the appliance. Fix the upper side of the front grille by pressing the knobs.
  • Page 21: Cleaning The Pm1.0 Sensor

    MAINTENANCE Cleaning the PM1.0 Sensor NOTE • This process is applicable only when the air purifying front panel is installed. - PM1.0 Sensor is only included with air purifying front panel. • It is recommended to clean the PM1.0 sensor every 6 months.(assuming 8 hours of daily use) - Cleaning interval is set period assuming that 8 After inserting the rubber cover...
  • Page 22: After Long Periods Of Disuse

    22 MAINTENANCE After Long Periods of Disuse Clean the air filter and reinstall it in the appliance. Check that the air inlet and outlet of the indoor/outdoor units are not blocked. Check that the ground wire is connected correctly. • The ground wire may be connected to the side of the indoor unit.
  • Page 23: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING Before Calling for Service Please check the following before you contact the service centre. If the problem persists, contact your local service centre. NOTE • Some functions may not be supported, depending on the model. Operation Problem Possible Cause & Solution The appliance does Burning smell and strange sounds are coming from the appliance.
  • Page 24 24 TROUBLESHOOTING Problem Possible Cause & Solution The appliance does A fuse exploded or the power supply is blocked. not work. • Replace the fuse or check if the circuit breaker has tripped. The appliance is unplugged. • Check whether the power cord is plugged into the outlet or the power isolators are switched on.
  • Page 25: Performance

    TROUBLESHOOTING Problem Possible Cause & Solution The appliance does The outdoor unit is in Defrosting mode. not emit warm air. • In Heating mode, ice and frost is built up on the coils when the outside temperature falls. The Defrosting mode reduces a layer of frost on the coil, and it should finish in approximately 15 minutes.
  • Page 26: Wi-Fi

    During Wi-Fi setup, the application is requesting a password to connect to the product (on certain phones). • Locate the network name which starts with "LG" under Settings > Networks. Note the last part of the network name. - If the network name looks like LGE_Appliance_XX-XX-XX, enter lge12345.
  • Page 27 TROUBLESHOOTING NOTE • The user is responsible for routine checks and cleaning to avoid poor appliance performance. • In cases involving unusual or special situations and circumstances sevicing must be carried out only by trained service personnel.
  • Page 28: Limited Warranty

    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 29: Canada

    AAA Rules. Except as otherwise provided for, LG waives any rights it may have to seek attorneys’ fees and expenses from you if LG prevails in the arbitration.
  • Page 30 If you and LG are unable to resolve the dispute within 30 days of LG’s receipt of the Notice of Dispute, the dispute shall be resolved by binding arbitration in accordance with the procedure set out herein.
  • Page 31 Limited Warranty. Opt Out. You may opt out of this dispute resolution procedure. If you opt out, neither you nor LG can require the other to participate in an arbitration proceeding. To opt out, you must send notice to LG no later than 30 calendar days from the date of the first consumer purchaser’s purchase of the product by...
  • Page 32 Please call the installing contractor of your product, as warranty service will be provided by them. Service Call Number: (888) LG Canada, (888) 542-2623 CANADA Numéro pour les appels de service : LG Canada, 1-888-542-2623...

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