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 MFL70423001 Rev.01_022718 Copyright © 2017 - 2018 LG Electronics Inc. All Rights Reserved.
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. Use only the refrigerant specified on the air conditioner label.
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.
EN Disposal of Your Old Appliance (as per e-waste Rules) When this crossed out wheeled bin symbol is depicted on the product and its operator’s manual, it means the product is covered by the e-waste Management and Handling Rules, 2011. and are meant to be recycled, dismantled, refurbished or disposed off. Do's − a. The product is required to be handed over only to the authorized recycler for disposal. − b.
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OPERATION EN 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. 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. Speed up the fan to cool or warm indoor air quickly , within a short period of time.
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. NOTE 2 Insert the new batteries and make sure that the + and - terminals of the batteries are installed correctly.
EN Setting the Current Time 1 2 3 Insert batteries (reinsert a battery if already inserted/or use the reset button). The icon below blinks at the bottom of the display screen. Press or minutes. Operating the Air Conditioner without the Remote Control You caan 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 Display Screen - Description To turn on/off the air conditioner. 2 To adjust the desired room temperature in cooling, heating or auto changeover mode. * To select the cooling mode. To select the heating mode. * * 1 Mode To select the dehumidification mode. To select the fan mode. To select the auto changeover/auto operation mode. *H'Cool To change room temperature quickly.
EN Button 2 Light Off Room Temp. * * Set/ Cancel * 1 Display Screen - To adjust time. - Turn Indoor unit display On or OFF. To display the room temperature. To change unit between °C and °F *Comfort Air To adjust the air flow to deflect wind. - *Energy Ctrl. *Comfort Sleep To set whether or not to display information regarding energy. To bring the effect of the power saving. Reset Diagnosis (5 s) To turn on/off air conditioner automatically at desired time.
EN Button Display Screen Description To purify the air by removing particles that enters the indoor unit. 2 To reduce noise from outdoor units. * Reset * * - To maintain a minimum room temperature and prevent objects in the room from freezing. To remove moisture generated inside the indoor unit. To initialize the remote control settings. 1 NOTE Some functions may not be supported, depending on the model. * buttons may be changed according to the type of model.
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 2 Open the front cover (Type2) or horizontal vane (Type1). Auto Operation(AI) Mode 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 Auto Operation (Artificial Intelligence) Auto Changeover Mode Cooling & Heating Model 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. is displayed on the display screen. 3 Press or button to select the desired operation code if the temperature is higher or lower than the desired temperature.
EN Heating Mode 1 Turn the appliance on. 2 Press Mode button repeatedly to select the Heating Mode. is displayed on the display screen. 3 Press or temperature. button to set the desired NOTE will be displayed on the indoor unit when defrosting is operating. Furthermore, this indication will be displayed on the indoor unit: − When preheating is operating. − When the room temperature has been reached to the set temperature.
EN Using the Fan Speed Function Using the Air Flow Direction Function Adjusting the Fan Speed This function adjusts the direction of the air flow vertically (horizontally). Press Fan Speed button repeatedly to adjust the fan speed. Display Screen Speed Press ( ) button repeatedly and select the desired direction. −Select ( ) to adjust the direction of the air flow automatically. High Medium - High Medium Medium - Low Low Natural Wind - NOTE The fan speed of Natural Wind adjusts automatically.
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 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 button repeatedly. The icon below blinks at the bottom of the display screen. 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 button. The icon below blinks at the bottom of the display screen. 2 Press 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 You can set the brightness of the indoor unit display screen. Press Light Off button. Display the Current Energy Usage 1 2 NOTE Turn the appliance on. Turn on/off the Display screen. Press button and hold it about 3 seconds.
EN Using the Energy Control Function (Optional) 1 Turn the appliance on. 2 Press Energy Ctrl button. Press Energy Ctrl button repeatedly to select each step. NOTE 1 step : The power Input is decreased by 20 % compared to rated power input. − is displayed on the display screen. 2 step : The power Input is decreased by 40 % compared to rated power input. − is displayed on the display screen. 3 step (Optional) : The power Input is decreased by 60 % compared to rated power input.
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 maintain a minimum room temperature and prevent objects in the room from freezing. To remove moisture generated inside the indoor unit. NOTE Some functions may not be supported, depending on the model.
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 LG SmartThinQ Application Things to check before using LG SmartThinQ For appliances with the logo 1 Check the distance between the appliance and the wireless router (Wi-Fi network). If the distance between the appliance and the wireless router is too far, the signal strength becomes weak. It may take a long time to register or installation may fail. 2 Turn off the Mobile data or Cellular Data on your smartphone.
EN Installing LG SmartThinQ Using the Application Search for the LG SmartThinQ application from the Google Play Store or Apple App Store on a smart phone. Follow instructions to download and install the application. 1 Select the appliance in the application and connect it to a Wi-Fi network. 2 Select the menu on the upper right side to access settings and features.
EN 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 Air filter Triple filter 3M filter Ionizer (Optional) Indoor unit Outdoor unit Description 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 bent. When the air filter is not assembled correctly, dust and other substances can enter into the indoor unit. Type1 Type2 If you look at the indoor unit from above it, can assemble the top filter easily. 1 Turn off the power to the unit.
EN Clean the 3M and Triple Filter (Optional) 1 Turn off the power to the unit. 2 Remove the air filters from the indoor unit. 3 Remove the 3M and Triple filter from the indoor unit. 5 Insert the 3M and Triple filter. Type1 Type2 Type1 6 Assemble the air filters. 7 Check the side of the front cover for correct assembly of the air filters. Type2 NOTE The feature and location of 3M and Triple filter may vary according to the type of model. 4 36 Clean the filter with a vacuum cleaner.
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 Cold air is escaping from the room. The desired temperature is higher than the current temperature. Set the desired temperature to a level lower than the current temperature. Air is not circulating properly. The air filter is dirty. The room temperature is too high. The air conditioner does not emit cool air. There is a heating source nearby. Fan Mode is selected. Outside temperature is too high. The fan speed cannot be adjusted.
EN Problem Possible Causes The indoor unit is still operating even when the unit 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. Water leaks from the outdoor unit. In the heating operations, condensed water drops from the heat exchanger. A clicking sound can be heard when the unit starts or stops due to movement of the reversing valve.
EN Problem Possible Causes The password for the Wi-Fi that you are trying to connect to is incorrect. Mobile data for your smartphone is turned on. The wireless network name (SSID) is set incorrectly. Your home appliance and smartphone is not connected to the Wi-Fi network. The router frequency is not 2.4 GHz. The distance between the appliance and the router is too far. Corrective Action Find the Wi-Fi network connected to your smartphone and remove it, then register your appliance on LG SmartThinQ.
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