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 www.lg.com MFL69781201 Rev.
TABLE OF CONTENTS This manual may contain images or content different from the model you purchased. This manual is subject to revision by the manufacturer. SAFETY INSTRUCTIONS.................................................... 3 IMPORTANT SAFETY INSTRUCTIONS.................................................3 OPERATION........................................................................ 11 Notes for Operation...............................................................................
SAFETY INSTRUCTIONS EN 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. Read the part with this symbol carefully and follow the instructions in order to avoid risk.
EN 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.
EN •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. Operation •Be • sure to use only those parts listed in the service parts list. Never attempt to modify the equipment. •Make • sure that children do not climb on or hit the outdoor unit. •Dispose • of the batteries in a place where there is no danger of fire.
EN •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. •Do • not place any objects on the power cable. •Do • not place a heater or other heating appliances near the power cable. •Do • not modify or extend the power cable.
EN 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. •Failure • to read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.
EN 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). •Install • the drain hose properly for the smooth drainage of water condensation. •Exercise • caution when unpacking or installing the air conditioner.
EN 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. •Do • not place any object on the air conditioner. •Never • mix different types of batteries, or old and new batteries for the remote control.
EN 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. Use a smooth cloth.
OPERATION EN Notes for Operation Suggestion for Energy Saving ••Do not cool excessively indoors. 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. ••Keep doors or windows closed tightly while you are operating the air conditioner. ••Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
EN Wireless Remote Control Operating Method Inserting Batteries Point the remote control towards the signal 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. 1 Remove the battery cover. 2 Insert the new batteries and make sure that the + and - terminals of the batteries are installed correctly.
EN Setting the Current Time 1 Insert batteries. ••The icon below blinks at the bottom of the display screen. 2 Press or minutes. 3 Press SET/CANCEL button to finish. button to select the Operating the Air Conditioner without the Remote Control You can use the ON/OFF button of the indoor unit to operate the air conditioner when the remote control is unavailable. 1 Open the front cover (Type2) or horizontal vane (Type1). 2 Press the ON/OFF button.
EN Using Wireless Remote Control You can operate the air conditioner more conveniently with the remote control. Button - 2 * Description 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. FAN SPEED MODE Display Screen To select the heating mode. TEMP * MODE JET MODE SWING ℃↔℉ [5 s] FUNC. TIMER SWING SET UP ROOM TEMP To select the auto changeover/auto operation mode.
EN Button 2 TIMER SET/ CANCEL CANCEL * * *LIGHT OFF ROOM TEMP FAN SPEED MODE TEMP * JET MODE 1 kW [3 s] SWING ℃↔℉ [5 s] FUNC. TIMER SWING SET UP ROOM TEMP DIAGNOSIS [5 s] SET CANCEL CANCEL - To turn on/off air conditioner automatically at desired time. To set/cancel the special functions and timer. To cancel the timer settings. - To adjust time. - To set the brightness of the display on the indoor unit. To display the room temperature.
EN Button Display Screen Description To purify the air by removing particles that enters the indoor unit. 2 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 temperature and prevent objects in the room from freezing. FUNC. FAN SPEED MODE TEMP * JET MODE SWING ℃↔℉ [5 s] FUNC. TIMER To scare away a mosquito.
EN Restarting the Air Conditioner Automatically When the air conditioner is turned on again after a power failure, this function restores the previous settings. Using the Mode Function This function allows you to select the desired function. Cooling Only Model Cooling Mode Disabling Auto Restart 1 Open the front cover (Type2) or horizontal vane (Type1). 2 Press the ON/OFF button and hold it for 6 seconds, then the unit will beep twice and the lamp will blink twice 4 times.
EN Heating Mode Fan Mode 1 Turn the appliance on. This mode only circulates the indoor air without changing the room temperature. 2 Press MODE button repeatedly to select the Heating Mode. •• 3 is displayed on the display screen. Press or temperature. 1 Turn the appliance on. 2 Press MODE button repeatedly to select the Fan Mode. •• button to set the desired 3 is displayed on the display screen. Press FAN SPEED button to adjust the fan speed.
EN Auto Operation (Artificial Intelligence) Cooling Only Model This mode automatically sets the fan speed and temperature depending on the room temperature. 1 Turn the appliance on. 2 Press MODE button repeatedly to select the Auto Operation. •• 3 is displayed on the display screen. Press or button to select the desired operation code if the temperature is higher or lower than the desired temperature.
EN Using the Fan Speed Function Adjusting the Fan Speed ••Press FAN SPEED button repeatedly to adjust the fan speed. Display Screen Speed High Medium - High Medium Medium - Low Low Natural Wind - NOTE ••The fan speed of Natural Wind adjusts automatically. → → ••The fan speed icons are displayed on some indoor units. → → → → ••Indoor unit display is displayed only 5 seconds and return to the setting temperature on some models.
EN Setting the On/Off Timer Setting the Off Timer This function sets the air conditioner to turn on/ off automatically at desired time. 1 Press TIMER button repeatedly. ••The icon below blinks at the bottom of the display screen. 2 Press or minutes. 3 Press SET/CANCEL button to finish. Setting the On Timer 1 Press TIMER button repeatedly. ••The icon below blinks at the bottom of the display screen. button to select the 2 Press or minutes. 3 Press SET/CANCEL button to finish.
EN Using the Sleep Function (Optional) Using the Simple Timer Function (Optional) This function turns off the air conditioner automatically when you go to sleep. This function turns off the air conditioner automatically when you go to sleep. 1 Turn the appliance on. 1 Turn the appliance on. 2 Press TIMER button repeatedly. ••The icon below blinks at the bottom of the display screen. 2 Press TIMER button repeatedly. ••The icon below blinks at the bottom of the display screen.
EN Using the Energy Display Function (Optional) Using the Light Off Function (Optional) This function displays the amount of electricity generated on the indoor display as the product operates. Display Screen Brightness Display the Current Energy Usage 1 2 NOTE Turn the appliance on. ••Turn on/off the Display screen. Press kW [3 s] button and hold it about 3 seconds. ••The instantaneous power consumption ( kW or kWh) is displayed for a while on some indoor units.
EN Using the Energy Saving Function (Optional) Using the Energy Control Function (Optional) This function minimizes power consumption during Cooling and increases the set temperature to the optimal level for a more comfortable environment. The temperature automatically settles at 22 °C if room ambient temperature is below 22 °C The temperature remains constant if it is above 22 °C 1 Turn the appliance on. 2 Press ENERGY CTRL button. ••Press ENERGY CTRL button repeatedly to select each step.
EN Using Special Functions 1 Turn the appliance on. 2 Press FUNC button repeatedly to select the desired function. 3 Press SET/CANCEL button to finish. Display Screen Description To purify the air by removing particles that enters the indoor unit. 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 temperature and prevent objects in the room from freezing. To scare away a mosquito.
EN Canceling Special Functions Using the Silent Function 1 This function prevents potential claims by neighbors, reducing noise from outdoor units. Press FUNC button repeatedly to select the desired function. is displayed on the display screen. •• 2 Press SET/CANCEL button to cancel the function. Using the Air Purification Function These functions supply clean and fresh air by ion particles and the filter.
EN Using the Low Heating Function Using the Auto Clean Function This function operates the heating system to maintain a minimum room temperature and prevent objects in the room from freezing where there is no permanent resident, such as a vacation. In the Cooling and Dehumidification Mode, moisture is generated inside the indoor unit. This function removes such moisture. •• , are displayed on the display screen. NOTE ••This function is available with Heating Mode.
SMART FUNCTIONS Using Smart ThinQ Application Installing Smart ThinQ Search for the LG Smart ThinQ application from the Google Play Store or Apple App Store on a smart phone. Follow instructions to download and install the application. Product Registration 1 Run the LG Smart ThinQ application on a smart phone. 2 Create an account and sign in. 3 Select Register. 4 Select Air conditioner. 5 Follow the instruction on the smart phone.
EN RF Radiation Exposure Statement ••This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body. Open Source Software Notice Information To obtain the source code under GPL, LGPL, MPL, and other open source licenses, that is contained in this product, please visit http:// opensource.lge.com. In addition to the source code, all referred license terms, warranty disclaimers and copyright notices are available for download.
MAINTENANCE EN 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. ••Dry the air conditioner in Fan mode for 3 to 4 hours and disconnect the power. There may be internal damage if moisture is left in its components.
EN Type Description Interval Air filter Triple filter 3M filter Ionizer (Optional) Clean with a vacuum or hand wash. Clean with a vaccum or brush. Clean with a vaccum or brush. Use dry cotton bud to remove any dust. Clean the Indoor unit surface by using a soft, dry cloth. Have a professional clean the condensate drain pan. Have a professional clean the condensate drain pipe. Replace the remote control batteries. Have a professional clean the heat exchanger coils and the panel vents.
EN Clean the Air Filter 7 Push down hooks to assemble the air filter. 8 Check the side of the front cover for correct assembly of 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 bended. ••When the air filter is not assembled correctly, dust and other substances come into the indoor unit. Type1 If you look at the indoor unit from above it, can assemble the top filter easily.
EN Clean the 3M and Triple Filter (Optional) 1 Turn off the power and unplug the power cord. 2 Remove the air filters from the indoor unit. 3 Remove the 3M and Triple filters from the indoor unit. 5 Insert the 3M and Triple filters. Type1 Type2 Type1 Type2 6 Assemble the air filters. 7 Check the side of the front cover for correct assembly of the air filters. NOTE ••The feature and location of 3M and Triple filter may vary according to the type of model.
TROUBLESHOOTING EN 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. If the problem persists, contact your local service center. Problem The air conditioner does not work normally.
EN Problem Possible Causes Air is not circulating properly. The air filter is dirty. The room temperature is too high. The air conditioner does not emit cool air. Cold air is escaping from the room. The desired temperature is higher than the current temperature. Corrective Action ••Make sure that there are no curtains, blinds, or pieces of furniture blocking the front of the air conditioner. ••Clean the air filter once every 2 weeks. ••See “Clean the Air Filter” for more information.
EN Problem Possible Causes The indoor unit is still operating even when power has been turned off. The Auto Clean function is being operated. The air outlet on the indoor unit is discharging mist. The cooled air from the air conditioner makes mist. Corrective Action ••Allow the Auto Clean function to continue since it removes any remaining moisture inside the indoor unit. If you do not want this feature, you can turn the unit off. ••When the room temperature decreases, this phenomenon will disappear.
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