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LG S4UQ18KL3QD Owner's Manual
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LG S4UQ18KL3QD 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.
TYPE: WALL MOUNTED
EN
English
FR Français
PT
Português
www.lg.com
MFL69781401
Rev.04_031419
Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved

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Summary of Contents for LG S4UQ18KL3QD

  • Page 1 CONDITIONER Read this owner's manual thoroughly before operating the appliance and keep it handy for reference at all times. TYPE: WALL MOUNTED English FR Français Português www.lg.com MFL69781401 Rev.04_031419 Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved...

  • Page 2: Table Of Contents

    Using the Energy Control Function (Optional) ........24 Using the Generator Mode Function (Optional) ........25 Using Special Functions ...............26 SMART FUNCTIONS ............29 Using LG SmartThinQ Application ............29 MAINTENANCE ..............32 Clean the Air Filter ................34 Clean the 3M, Triple and Allergy Filter (Optional) .........35...

  • Page 3: Safety Instructions

    SAFETY INSTRUCTIONS 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. This symbol is displayed to indicate matters and operations that can cause risk.
  • Page 4 Installation •Do not install the air conditioner on an unstable surface or in a place where there is danger of it falling. •Contact an authorized service center when installing or relocating the air conditioner. •Install the panel and the cover of the control box safely. •Do not install the air conditioner in a place where flammable liquids or gases such as gasoline, propane, paint thinner, etc., are stored.
  • Page 5 •Install dedicated electric outlet and circuit breaker before using the air conditioner. •Do not connect the ground wire to a gas pipe, a lightning rod, or a telephone ground wire. •Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
  • Page 6 •Do not block the inlet or outlet of air flow. •Do not insert hands or other objects through the air inlet or outlet while the air conditioner is operating. •Make sure that the power cable is neither dirty, loose, nor broken. •Never touch, operate, or repair the air conditioner with wet hands.
  • Page 7 Technical Safety •Installation or repairs made by unauthorized persons can pose hazards to you and others. •The information contained in the manual is intended for use by a qualified service technician who is familiar with the safety procedures and equipped with the proper tools and test instruments.
  • Page 8 CAUTION To reduce the risk of minor injury to persons, malfunction, or damage to the product or property when using this product, follow basic precautions, including the following: Installation •Do not install the air conditioner in an area where it is directly exposed to sea wind (salt spray).
  • Page 9 Operation •Remove the batteries if the remote control is not to be used for an extended period of time. •Make sure that the filter is installed before operating the air conditioner. •Be sure to check if there is a refrigerant leak after installing or repairing the air conditioner.
  • Page 10 Maintenance •Never touch the metal parts of the air conditioner when removing the air filter. •Use a sturdy stool or ladder when cleaning, maintaining, or repairing the air conditioner at a height. •Never use strong cleaning agents or solvents when cleaning the air conditioner or spray water.

  • Page 11: Operation

    OPERATION Notes for Operation Suggestion for Energy Saving • Do not over-cool the space. This may be harmful for your health and may consume more electricity. • Block sunlight with blinds or curtains while you are operating the air conditioner. •...

  • Page 12: Wireless Remote Control

    Wireless Remote Control Operating Method Point the remote control towards the signal Inserting Batteries receiver at the right side of the air conditioner to operate it. If the display screen of the remote control begins to fade, replace the batteries. Insert AAA (1.5 V) batteries before using the remote control.
  • Page 13 Setting the Current Time Operating the Air Conditioner without the Remote Control Insert batteries. You can use the ON/OFF button of the indoor • The icon below blinks at the bottom of the unit to operate the air conditioner when the display screen.
  • Page 14 Using Wireless Remote Control You can operate the air conditioner more conveniently with the remote control. Display Description Button Screen To turn on/off the air conditioner. To adjust the desired room temperature in cooling, heating or auto changeover mode. To select the cooling mode. To select the heating mode.
  • Page 15 Display Description Button Screen To turn on/off air conditioner automatically at desired time. TIMER SET/ To set/cancel the special functions and CANCEL timer. To cancel the timer settings. CANCEL To adjust time. *LIGHT To set the brightness of the display on the indoor unit.
  • Page 16 Display Description Button Screen The Ion generator uses millions of ions to help improve indoor air quality. To reduce noise from outdoor units. To keep your skin moisturized by generating ion clusters. To lower indoor humidity quickly. To maintain a minimum room FUNC.

  • Page 17: Restarting The Air Conditioner Automatically

    Restarting the Air Conditioner Using the Mode Function Automatically This function allows you to select the desired function. When the air conditioner is turned on again after a power failure, this function restores the Cooling Only Model previous settings. Cooling Mode Disabling Auto Restart Open the front cover (Type2) or horizontal vane (Type1).
  • Page 18 Auto Operation (Artificial Auto Changeover Mode Intelligence) Cooling & Heating Model Cooling Only Model This mode changes the mode automatically to maintain the set temperature at ±2 °C This mode automatically sets the fan speed and temperature depending on the room Turn the appliance on.

  • Page 19: Using The Jet Mode Function

    Using the Jet Mode Function Heating Mode Changing Room Temperature Turn the appliance on. Quickly Press MODE button repeatedly to select the This function allows you to cool indoor air Heating Mode. quickly during the summer or warm it quickly during winter.

  • Page 20: Using The Fan Speed Function

    Using the Fan Speed Using the Air Flow Direction Function Function This function adjusts the direction of the air flow Adjusting the Fan Speed vertically (horizontally). • Press FAN SPEED button repeatedly to adjust • Press ) button repeatedly and select the fan speed.

  • Page 21: Setting The On/Off Timer

    Setting the On/Off Timer Setting the Off Timer This function sets the air conditioner to turn on/ Press button repeatedly. off automatically at desired time. TIMER • The icon below blinks at the bottom of the On/Off Timer can be set together. display screen.

  • Page 22: Using The Sleep Function (Optional)

    Using the Sleep Function Using the Simple Timer (Optional) Function (Optional) This function turns off the air conditioner This function turns off the air conditioner automatically when you go to sleep. automatically when you go to sleep. Turn the appliance on. Turn the appliance on.

  • Page 23: Using The Energy Display Function (Optional)

    Using the Energy Display Using the Light Off Function Function (Optional) (Optional) This function displays the amount of electricity Display Screen Brightness generated on the indoor display as the product operates. You can set the brightness of the indoor unit display screen.

  • Page 24: Using The Energy Saving Function (Optional)

    Using the Energy Saving Using the Energy Control Function (Optional) Function (Optional) This function minimizes power consumption Turn the appliance on. during Cooling and increases the set temperature to the optimal level for a more comfortable environment. The temperature Press ENERGY CTRL button. automatically settles at 22 °C if desired •...

  • Page 25: Using The Generator Mode Function (Optional)

    Using the Generator Mode Function (Optional) This function operate air conditioner under the previously set power consumption. Turn the appliance on. Press GEN MODE button. is displayed on some indoor • units. NOTE • It is not displayed on the remote control display.

  • Page 26: Using Special Functions

    Using Special Functions Display Description Screen Turn the appliance on. The Ion generator uses millions of ions to help improve indoor Press FUNC button repeatedly to select the air quality. desired function. To reduce noise from outdoor units. To keep your skin moisturized Press SET/CANCEL button to finish.
  • Page 27 Canceling Special Functions Using the Silent Function This function prevents potential claims by Press FUNC button repeatedly to select the neighbors, reducing noise from outdoor units. desired function. is displayed on the display screen. • Press SET/CANCEL button to cancel the NOTE function.
  • Page 28 Using the Low Heating Function Using the Auto Clean Function This function operates the heating system to In the Cooling and Dehumidification Mode, maintain a minimum room temperature and moisture is generated inside the indoor unit. prevent objects in the room from freezing where This function removes such moisture.

  • Page 29: Smart Functions

    • For appliances with the logo manual. Check the distance between the appliance • LG SmartThinQ is not responsible for any and the wireless router (Wi-Fi network). network connection problems or any faults, malfunctions, or errors caused by network • If the distance between the appliance and connection.
  • Page 30 Installing LG SmartThinQ Open Source Software Notice Information Search for the LG SmartThinQ application from the Google Play Store or Apple App Store on a To obtain the source code under GPL, LGPL, smart phone. Follow instructions to download MPL, and other open source licenses, that is and install the application.
  • Page 31 Phone • For appliances with the logo Use this function if you need an accurate diagnosis by an LG Electronics customer information centre when the appliance malfunctions or fails. Smart Diagnosis™ can not be activated unless the appliance is connected to power. If the...

  • Page 32: Maintenance

    MAINTENANCE WARNING • Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops. If the air conditioner will not be used for an extended period of time, dry the air conditioner to maintain it in best condition. Clean the product regularly to maintain optimal performance and to prevent possible breakdown.
  • Page 33 Type Description Interval Air filter Clean with a vacuum or hand wash. 2 weeks Triple filter Clean with a vacuum or brush. Every 3 months 3M filter Clean with a vacuum or brush. Every 6 months Allergy filter Clean with a vacuum or brush. Every 6 months Ionizer (Optional) Use dry cotton bud to remove any dust.

  • Page 34: Clean The Air Filter

    Clean the Air Filter Push down hooks to assemble the air filter. Clean the air filters once every 2 weeks, or more, if necessary. NOTE • The air filter can be broken when it is bent. • When the air filter is not assembled correctly, Check the side of the front cover for correct dust and other substances can enter into the assembly of the air filter.

  • Page 35: Clean The 3M, Triple And Allergy Filter (Optional)

    Clean the 3M, Triple and Insert the 3M, Triple and Allergy filter. Allergy Filter (Optional) Turn off the power to the unit. Type1 Remove the air filters from the indoor unit. Remove the 3M, Triple and Allergy filter from the indoor unit. Type2 Type1 Assemble the air filters.

  • Page 36: Troubleshooting

    TROUBLESHOOTING Self-diagnosis Function This product has a built-in self-diagnosis function. If an error occurs, the lamp of the indoor unit will blink in 2 second intervals. If this occurs, contact your local dealer or service center. Before Calling for Service Please check the following before you contact the service center.
  • Page 37 Problem Possible Causes Corrective Action • Make sure that there are no curtains, Air is not circulating properly. blinds, or pieces of furniture blocking the front of the air conditioner. • Clean the air filter once every 2 weeks. The air filter is dirty. •...
  • Page 38 Problem Possible Causes Corrective Action • Allow the Auto Clean function to The indoor unit is continue since it removes any still operating even The Auto Clean function is remaining moisture inside the indoor when the unit has being operated. unit.
  • Page 39 • Find the Wi-Fi network connected to The password for the Wi-Fi your smartphone and remove it, then that you are trying to connect register your appliance on LG to is incorrect. SmartThinQ. • Turn off the Mobile data of your...
  • Page 40 Memo...

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