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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 www.lg.com MFL69781201 Rev.02_080317 Copyright © 2017 LG Electronics Inc. All Rights Reserved. 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............................................................................... 11 Parts and Functions............................................................................... 11 Wireless Remote Control.......................................................................12 Restarting the Air Conditioner Automatically.........................................17 Using the Mode Function.......................................................................17 Using the Jet Mode Function.................................................................19 Using the Fan Speed Function..............................................................20 Using the Air Flow Direction Function....................................................20 Setting the On/Off Timer........................................................................21 Using the Sleep Function (Optional)......................................................22 Using the Simple Timer Function (Optional)..........................................22 Using the Energy Display Function (Optional).......................................23 Using the Light Off Function (Optional).................................................23 Using the Comfort Air Function (Optional).............................................23 Using the Energy Saving Function (Optional).......................................24 Using the Energy Control Function (Optional).......................................24 Using Special Functions........................................................................25 SMART FUNCTIONS.......................................................... 28 Using LG SmartThinQ Application.........................................................28 MAINTENANCE................................................................... 31 Clean the Air Filter.................................................................................33 Clean the 3M and Triple Filter (Optional)...............................................34 TROUBLESHOOTING........................................................ 35 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. WARNING This indicates that the failure to follow the instructions can cause serious injury or death. CAUTION This indicates that the failure to follow the instructions can cause the minor injury or damage to the product. IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of explosion, fire, death, electric shock, injury or scalding to persons when using this product, follow basic precautions, including the following: Children in the Household This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. 3 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. •Make • sure that the pipe and the power cable connecting the indoor and outdoor units are not pulled too tight when installing the air conditioner. •Use • standard circuit breaker and fuse that conform to the rating of the air conditioner. •Do • not input air or gas into the system except with the specific refrigerant. •Use • non-flammable gas (nitrogen) to check for leak and to purge air; using compressed air or flammable gas may cause fire or explosion. •The • indoor/outdoor wiring connections must be secured tightly, and the cable should be routed properly so that there is no force pulling the cable from the connection terminals. Improper or loose connections can cause heat generation or fire. 4 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. •Cut • off the power supply if there is any noise, smell, or smoke coming from the air conditioner. •Do • not leave flammable substances such as gasoline, benzene, or thinner near the air conditioner. •Contact • an authorized service center when the air conditioner is submerged by flood waters. •Do • not use the air conditioner for an extended period of time in a small place without proper ventilation. •In • the event of a gas leak (such as Freon, propane gas, LP gas, etc.) ventilate sufficiently before using the air conditioner again. •To • clean the interior, contact an authorized service center or dealer. Using harsh detergents may cause corrosion or damage to the unit. •Be • sure to ventilate sufficiently when the air conditioner and a heating appliance such as a heater are used simultaneously. 5 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. Scratches or peeling insulation on the power cables may result in fire or electric shock, and should be replaced. •Cut • off the power supply immediately in the event of a blackout or a thunderstorm. •Take • care to ensure that power cable could not be pulled out or damaged during operation. •Do • not touch refrigerant pipe, water pipe and any internal parts while the unit is operating or immediately after operation. Maintenance •Do • not clean the appliance by spraying water directly onto the product. •Before • cleaning or performing maintenance, disconnect the power supply and wait until the fan stops. 6 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. •The • appliance shall be installed in accordance with national wiring regulations. •When • the power cord is to be replaced, the replacement work shall be performed by authorized personnel using only genuine replacement parts. •This • appliance must be properly grounded to minimize risk of electric shock. •Do • not cut or remove the grounding prong from the power plug. •Attaching • the earth wire to the power outlet cover screw does not ground the appliance unless the cover screw is metal, uninsulated, and the power outlet is grounded through house wiring. •If • you have any doubt whether the air conditioner is properly grounded, have the power outlet and circuit checked by a qualified electrician. •The • refrigerant and insulation blowing gas used in the appliance require special disposal procedures. Consult a service agent or a similarly qualified person before disposing of them. •If • the supply cord is damaged, it must be replaced by the manufacturer or its service agents or similarly qualified person in order to avoid a hazard. 7 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. •Do • not touch the leaking refrigerant during installation or repair. •Transport • the air conditioner with two or more people or use a forklift. •Install • the outdoor unit such that it is protected from direct sunlight. Do not place the indoor unit in a place where it is directly exposed to sunlight via the windows. •Safely • dispose of packing materials such as screws, nails or batteries using proper packaging after installation or repair. •Install • the air conditioner in a place where the noise from the outdoor unit or the exhaust fumes will not inconvenience the neighbors. Failure to do so may result in conflict with the neighbors. 8 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. •Do • not let the air conditioner run for a long time when humidity is very high or when a door or a window has been left open. •Stop • using the remote control if there is a fluid leak in the battery. If your clothes or skin are exposed to the leaking battery fluid, wash off with clean water. •Do • not expose people, animals, or plants to the cold or hot wind from the air conditioner for extended periods of time. •If • the leaking battery fluid has been swallowed, rinse the inside of the mouth thoroughly and consult a doctor. •Do • not drink the water drained from the air conditioner. •Do • not use the product for special purposes, such as preserving foods, works of art, and etc. It is an air conditioner for consumer purposes, not a precision refrigeration system. There is risk of damage or loss of property. •Do • not recharge or disassemble the batteries. 9 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. 10 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. ••Open windows regularly for ventilation. The indoor air quality may deteriorate if the air conditioner is used for long durations. ••Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or reduce the unit performance. ••For use in Australia, New Zealand : This air conditioner is capable of DRM1, DRM2 and DRM3 and complies with standard AS/NZS 4755.3.1.(Optional) Parts and Functions Indoor Unit Outdoor Unit 1 Air Filter 1 Air Intake Vents 2 Air Intake 2 Air Outlet Vents 3 Front Cover 4 Air Outlet 5 Air Deflector (Horizontal Vane) 6 Air Deflector (Vertical Louver) 7 On/Off Button NOTE ••The number and location of operation lamps may vary according to the model of the air conditioner. ••The feature may be changed according to the type of model. 11 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. Installing the Remote Control Holder To protect the remote control, install the holder where there is no direct sunlight. 1 Choose a safe and easily accessible location. 2 Fix the holder by fastening 2 screws firmly with a screwdriver. 12 ••The remote control may operate other electronic devices if it is directed towards them. Make sure to point the remote control towards the air conditioner signal receiver. ••For proper operation, use a soft cloth to clean the signal transmitter and receiver. ••In case of a function not provided in the product, no buzzer sound occurs from the product when a button for such function on the remote control is pressed except for Air Flow Direction ( SWING ), Energy Display (kW [3 s]), Air Purification function ( ). 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. Type1 NOTE ••The On/Off Timer is available after setting the current time. ON/OFF Using the °C/°F Conversion Function (Optional) Type2 This function changes unit between °C and °F ••Press and hold SWING ℃↔℉ [5 s] button about 5 seconds. ON/OFF NOTE ••The stepping motor may be broken, if the horizontal vane opens rapidly. ••The fan speed is set to high. ••The feature may be changed according to the type of model. ••The temperature cannot be altered when using this emergency On/Off button. ••For cooling-only models, the temperature is set to 22 °C ••For cooling & heating models, the temperature is set from 22 °C to 24 °C 13 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. DIAGNOSIS [5 s] SET CANCEL CANCEL RESET To select the dehumidification mode. To select the fan mode. 1 kW [3 s] JET MODE To change room temperature quickly. FAN SPEED To adjust the fan speed. SWING SWING To adjust the air flow direction vertically or horizontally. NOTE ••* buttons may be changed according to the type of model. 14 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. To change unit between °C and °F *ENERGY SAVING *COMFORT AIR *ENERGY CTRL *COMFORT SLEEP DIAGNOSIS [5 s] Description - °C↔°F [5 s] kW [3 s] RESET Display Screen To minimize power consumption. To adjust the air flow to deflect wind. - To set whether or not to display information regarding energy. To bring the effect of the power saving. - To make a comfortable sleeping environment. To conveniently check maintenance information of a product. 15 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. 1 kW [3 s] SWING SET UP ROOM TEMP DIAGNOSIS [5 s] SET CANCEL CANCEL RESET - To remove moisture generated inside the indoor unit. To make a comfortable sleeping environment. To initialize the remote control settings. NOTE RESET 16 ••Some functions may not be supported, depending on the model. ••* buttons may be changed according to the type of model. ••Press the SET/CANCEL button to operate the selected FUNC. 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. ••To re-enable the function, press the ON/ OFF button and hold it for 6 seconds. The unit will beep twice and the lamp will blink 4 times. Auto Operation(AI) Mode Dehumidification Mode Fan Mode Cooling & Heating Model Type1 Cooling Mode Auto Changeover Mode ON/OFF Dehumidification Mode Type2 Heating Mode ON/OFF NOTE ••The feature may be changed according to the type of model. ••If you press and hold the ON/OFF button for 3 – 5 seconds, instead of 6 seconds, the unit will switch to the test operation. In the test operation, the unit blows out strong cooling air for 18 minutes and then returns to factory default settings. Fan Mode Cooling Mode 1 Turn the appliance on. 2 Press MODE button repeatedly to select the Cooling Mode. •• 3 is displayed on the display screen. Press or temperature. button to set the desired 17 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. •• 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. Dehumidification Mode This mode removes excess moisture from a highly humid environment or during the rainy season, in order to prevent mildew from setting in. This mode adjusts the room temperature and the fan speed automatically to maintain the optimal level of humidity. 1 Turn the appliance on. 2 Press MODE button repeatedly to select the Dehumidification Mode. is displayed on the display screen. NOTE ••In this mode you cannot adjust the room temperature, it is adjusted automatically. ••The room temperature is not displayed on the display screen. 18 Turn the appliance on. 2 Press MODE button repeatedly to select the Fan Mode. •• button to set the desired NOTE •• 1 3 is displayed on the display screen. Press FAN SPEED button to adjust the fan speed. Auto Changeover Mode Cooling & Heating Model This mode changes the mode automatically to maintain the set temperature at ±2 °C 1 Turn the appliance on. 2 Press MODE button repeatedly to select the Auto Changeover Mode. •• 3 4 is displayed on the display screen. Press or temperature. button to set the desired 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. Using the Jet Mode Function Changing Room Temperature Quickly This function allows you to cool indoor air quickly during the summer or warm it quickly during winter. ••Cooling & Heating model : The Jet Mode function is available with Cooling, Heating and Dehumidification Mode. ••Cooling Only model : The Jet Mode function is available with Cooling, Dehumidification, Fan, Auto Operation Mode and Air Purification function. 1 Turn the appliance on. 2 Press MODE button repeatedly to select the desired mode. 3 Press JET MODE button. •• is displayed on the display screen. NOTE Code 2 1 0 -1 -2 Description Cold A little cold Maintain room temperature A little hot Hot NOTE ••In this mode, you cannot adjust the fan speed, but you can set the air deflector to rotate automatically. ••Jet Heating Mode is not available on some models. ••In Jet Cooling Mode, strong air blows out for 30 minutes. ••After 30 minutes later, setting temperature is maintaining 18 °C If you want to change the temperature, Press or button to set the desired temperature. ••In Jet Heating Mode, strong air blows out for 30 minutes. ••After 30 minutes later, setting temperature is maintaining 30 °C If you want to change the temperature, Press or button to set the desired temperature. ••This function may operate differently from the remote control display. 19 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 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. 20 ••Press SWING ( SWING ) button repeatedly and select the desired direction. −−Select ( ) to adjust the direction of the air flow automatically. NOTE ••Adjusting the air flow direction horizontally may not be supported, depending on the model. ••Adjusting the air deflector arbitrarily may cause product failure. ••If you restart the air conditioner, it starts to operate with the previously set direction of air flow, so the air deflector may not match the icon displayed on the remote control. When this occurs, press SWING or SWING button to adjust the direction of the air flow again. ••This function may operate differently from the remote control display. 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. 2 Press or minutes. 3 Press SET/CANCEL button to finish. button to select the ••After setting the timer, current time and icon are displayed on the display screen indicating that the desired time is set. button to select the ••After setting the timer, current time and icon are displayed on the display screen indicating that the desired time is set. NOTE ••This function is disabled when you set Simple Timer. Canceling the Off Timer Canceling the On Timer 1 2 1 Press TIMER button repeatedly. ••The icon below blinks at the bottom of the display screen. 2 Press SET/CANCEL button to cancel the setting. Press TIMER button repeatedly. ••The icon below blinks at the bottom of the display screen. Press SET/CANCEL button to cancel the setting. Canceling the Timer Setting ••Press CANCEL button to cancel all timer settings. 21 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. 3 Press or button to select the hour (up to 7 hours). 3 Press or button to select the hour (up to 7 hours). 4 Press SET/CANCEL button to finish. 4 Press SET/CANCEL button to finish. •• is displayed on the display screen. •• is displayed on the display screen. NOTE NOTE •• is displayed on some indoor units. ••Indoor unit display is displayed from 1H to 7H which is displayed only 5 seconds and then return to the setting temperature. ••In the Cooling and Dehumidification Mode, the temperature increases by 1 °C after 30 minutes and additional 1 °C after another 30 minutes for a more comfortable sleep. ••The temperature increases up to 2 °C from the preset temperature. ••Although the remark for fan speed on the display screen may be changed, the fan speed is adjusted automatically. ••This function is disabled when you set Off Timer. 22 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. Using the Comfort Air Function (Optional) ••The instantaneous power consumption ( kW or kWh) is displayed for a while on some indoor units. Comfort Vane Operation This function conveniently sets the vane to a preset position to deflect the supply air away from blowing directly onto the occupants in the room. Display the Cumulative Energy Usage (Optional) 1 2 Turn the appliance on. Press kW [3 s] button and hold it about 3 seconds twice. ••The cumulative power consumption ( is displayed for a while on some indoor units. You can set the brightness of the indoor unit display screen. ••Press LIGHT OFF button. kW kWh ) NOTE ••It is not displayed on the wireless remote control. ••kW refers to instantaneous power consumption. ••kWh refers to cumulative power consumption. ••If it is more than 99 kWh, which is the range of expression, maintain it as 99 kWh. ••Power off resets its value. ••Display wattage under 10 kW(h) with 0.1 kW(h) unit, and display one over 10 kW(h) with 1 kW(h) unit. ••The actual power may differ from the power displayed. 1 Turn the appliance on. 2 Press COMFORT AIR button repeatedly and select the desired direction. •• or screen. is displayed on the display NOTE •• or is displayed on some indoor units. ••This function is disabled when you press MODE or JET MODE button. ••This function is disabled and auto swing of vertical direction is set up when you press SWING button. ••When this function is off, the horizontal vane operates automatically depending on the set mode. ℃↔℉ [5 s] 23 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 desired 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. 1 Turn the appliance on. 2 Press MODE button repeatedly to select the Cooling Mode. 3 Press ENERGY SAVING button. •• is displayed on the display screen. 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. −− is displayed on the display screen. •• (1 step), (2 step) is displayed on some indoor units. ••This function is available with Cooling Mode. ••Capacity may decrease when Energy Control mode is selected. ••Desired temperature is displayed about 5 seconds if you press FAN SPEED, or button. ••Room temperature is displayed about 5 seconds if you press ROOM TEMP button. 24 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. To remove moisture generated inside the indoor unit. To make a comfortable sleeping environment. NOTE ••Some functions may not be supported, depending on the model. ••Some functions may operate differently from the remote control display. 25 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. Function Ionizer Plasma Display Description Ion particles from Ionizer sterilize the aerial bacteria and other harmful substances. It removes microscopic contaminants from the intake air completely to supply clean and fresh air. NOTE ••You can use this function without turning the air conditioner on. ••Both the plasma lamp and the cooling lamp light up while Smoke Away/Plasma is in operation on some models. ••Do not touch ionizer during operation. ••This function may operate differently from the remote control display. 26 NOTE ••This function is disabled when you press MODE or ENERGY CTRL or JET MODE button. ••This function is available with Cooling, Heating, Auto Changeover, Auto Operation Mode. Using the Ion Care Function This function keeps your skin moisturized by generating ion clusters which is absorbed into the surface of skin. •• is displayed on the display screen about 3 seconds. NOTE ••This function is available with Cooling, Fan Mode and Air Purification function. Using the Jet Dry Function This function maximizes the performance of dehumidification. •• , are displayed on the display screen. NOTE ••This function is available with Cooling, Dehumidification, Auto Operation, Fan Mode and Air Purification function. ••This function is not available with Sleep function. ••This function is disabled when you press MODE button. 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. ••During LH operation, when you press buttons such as , , MODE, FAN SPEED, and then return to Heating Mode, 30 °C high speed. ••If JET MODE button is pressed during LH operation, this function is disabled and Power Heating Mode is operated immediately. (only for power heating model) ••In case an error occurred, operation can be interrupted for the protection of the product. ••COMFORT AIR and SWING button cannot be used while the LH function is in operation. Using the Mosquito Away Function This function fans away mosquitos by generating a high-frequency wave. •• is displayed on the display screen. is displayed on the display screen. •• NOTE ••Some functions cannot be used while the Auto Clean function is in operation. ••If you turn off the unit, the fan continues to run for 30 minutes and cleans the inside of the indoor unit. Using the Comfort Sleep Function This function operates the air conditioner automatically to make the comfortable sleep environment. •• , are displayed on the display screen. NOTE ••This function is available with Cooling Mode. ••The vane stops swing and sets indirect airflow angle, after 30 minutes from start even though the room temperature doesn’t decrease to optimal temperature to sleep. ••It is possible that a comfortable sleep environment is different according to the people. NOTE ••You can use this function without turning the air conditioner on. 27 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. ••For iPhones, turn data off by going to Settings → Cellular → Cellular Data. 3 Connect your smartphone to the wireless router. 28 EN NOTE ••To verify the Wi-Fi connection, check that Wi-Fi icon on the control panel is lit. ••The appliance supports 2.4 GHz Wi-Fi networks only. To check your network frequency, contact your Internet service provider or refer to your wireless router manual. ••LG SmartThinQ is not responsible for any network connection problems or any faults, malfunctions, or errors caused by network connection. ••If the appliance is having trouble connecting to the Wi-Fi network, it may be too far from the router. Purchase a Wi-Fi repeater (range extender) to improve the Wi-Fi signal strength. ••The Wi-Fi connection may not connect or may be interrupted because of the home network environment. ••The network connection may not work properly depending on the Internet service provider. ••The surrounding wireless environment can make the wireless network service run slowly. ••The appliance cannot be registered due to problems with the wireless signal transmission. Unplug the appliance and wait about a minute before trying again. ••If the firewall on your wireless router is enabled, disable the firewall or add an exception to it. ••The wireless network name (SSID) should be a combination of English letters and numbers. (Do not use special characters.) ••Smartphone user interface (UI) may vary depending on the mobile operating system (OS) and the manufacturer. ••If the security protocol of the router is set to WEP, you may fail to set up the network. Please change it to other security protocols (WPA2 is recommended) and register the product again. EN Installing LG SmartThinQ 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. NOTE ••If you choose the simple login to access the LG SmartThinQ application, you must go through the appliance registration process each time you change your smartphone or reinstall the application. Product Registration 1 Run the LG SmartThinQ 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. Wi-Fi Function ••For appliances with the logo Communicate with the appliance from a smart phone using the convenient smart features. Using 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. Firmware Update Keep the appliance performance updated. Smart Diagnosis™ If you use the Smart Diagnosis function, you will be provided with the useful information such as a correct way of using the appliance based on the pattern of use. Settings Allows you to set various options on the appliance and in the application. NOTE ••If you change your wireless router, your Internet service provider or your password after registering the appliance, please delete it from the LG SmartThinQ Settings → Edit Product and register again. ••The application is subject to change for appliance improvement purposes without notice to users. ••Functions may vary by model. 29 EN RF Radiation Exposure Statement ••This equipment shall be installed and used at a minimum distance of 20 cm from the human body. Wireless LAN Module Specifications Model Frequency Range Output Power(Max) LCW-003 2412 to 2472 MHz IEEE 802.11b:18.37 dBm IEEE 802.11g:17.67 dBm IEEE 802.11n:17.67 dBm 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. LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such distribution (such as the cost of media, shipping, and handling) upon email request to [email protected]. This offer is valid for three (3) years from the date on which you purchased the product. 30 Smart Diagnosis™ Using a Smart Phone ••For appliances with the or 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 appliance is unable to turn on, then troubleshooting must be done without using Smart Diagnosis™. 1 Open the LG SmartThinQ application on the smart phone. 2 Select the air conditioner in dashboard. 3 Press Start Smart Diagnosis button. 4 Follow the instructions on the smart phone. NOTE ••The Smart Diagnosis™ function depends on the local call quality. ••If the Smart Diagnosis™ data transfer is poor due to poor call quality, you may not receive the best Smart Diagnosis™ service. ••Be sure to keep ambient noise to a minimum or the phone may not correctly receive the buzzer beeps from the indoor unit. 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. ••Before using the air conditioner again, dry the inner components of the air conditioner in Fan mode for 3 to 4 hours. This will help to remove the odor generated from moisture. Air Filter ••The feature may be changed according to the type of model. 31 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. (Consult with technician.) Have a professional clean the fan. Have a professional clean the condensate drain pan. Have a professional verify that all the fan assembly is firmly tightened. Clean the electric components with air. Interval 2 weeks Every 3 months Every 6 months Every 6 months Regularly Once a year Every 4 months Once a year Once a year Once a year Once a year Once a year Once a year NOTE ••Never use water that is higher than 40 °C when you clean the filters. It may cause deformation or discoloration. ••Never use volatile substances when you clean the filters. They may damage the surface of the product. ••Do not wash the 3M filter with water, because the filter can be damaged (Optional). ••Do not wash the Triple filter with water, because the filter can be damaged (Optional). 32 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 If you look at the indoor unit from above it, can assemble the top filter easily. 1 Turn off the power to the unit. 2 Hold the knobs of the air filter, lift it up slightly. 3 4 Type2 1 Turn off the power to the unit. 2 Open the front cover. ••Lift up both sides of the cover slightly. 3 Hold the knobs of the air filters, pull them down slightly and remove them from the indoor unit. 4 Clean the filters with a vacuum cleaner or with lukewarm water with neutral detergent. 5 Dry the filters in the shade. 6 Insert the hooks of the air filters into the front cover. 7 Check the side of the front cover for correct assembly of the air filters. Remove it from the indoor unit. Clean the filter with a vacuum cleaner or with lukewarm water with neutral detergent. 5 Dry the filter in the shade. 6 Insert the hooks of the air filter into the front cover. 33 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 Type2 6 Assemble the air filters. 7 Check the side of the front cover for correct assembly of the air filters. NOTE 4 34 ••The feature and location of 3M and Triple filter may vary according to the type of model. 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. Possible Causes Burning smell and strange sounds are coming from the unit. Water leaks from the indoor unit even when the humidity level is low. The power cable is damaged or it is generating excessive heat. A switch, a circuit breaker (safety, ground), or a fuse is not operated properly. The unit generates an error code from its self-diagnosis. The air conditioner is unplugged. A fuse exploded, or the power supply is blocked. A power failure has occurred. The air conditioner does not work. Corrective Action ••Turn off the air conditioner, switch OFF, or disconnect the power supply, and contact the service center. ••Check whether the power cord is plugged into the outlet or the power isolators are switched on. ••Replace the fuse or check if the circuit breaker has tripped. ••Turn off the air conditioner when a power failure occurs. ••When the power is restored, wait 3 minutes, and then turn on the air conditioner. ••Check if the circuit breaker has tripped. The voltage is too high or too low. The air conditioner was turned off automatically at a preset ••Turn the air conditioner on. time. ••Make sure that the batteries are inserted correctly in your remote controller. The battery setting in the the batteries are placed correctly, remote controller is incorrect. ••If but the air conditioner still does not operate, replace the batteries and try again. 35 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. There is a heating source nearby. Fan Mode is selected. Outside temperature is too high. The fan speed cannot be adjusted. The Jet Mode, or Auto Operation Mode is selected. The temperature cannot be adjusted. The Fan Mode or Jet Mode is selected. The air conditioner stops during operation. 36 The air conditioner is suddenly turned off. A power failure has occurred during operation. 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. ••In summer, cooling the indoor air fully may take some time. In this case, select the Jet Mode to cool the indoor air quickly. ••Make sure that no cold air is escaping through the ventilation points in the room. ••Set the desired temperature to a level lower than the current temperature. ••Avoid using heat generators like electric ovens or gas burners while the air conditioner is in operation. ••During Fan Mode, air blows from the air conditioner without cooling or heating the indoor air. ••Switch the operation mode to cooling operation. ••The cooling effect may not be sufficient. ••In some operation modes, you cannot adjust the fan speed. Select an operation mode in which you can adjust the fan speed. ••In some operation modes, you cannot adjust the temperature. Select an operation mode in which you can adjust the temperature. ••The Timer Function may have timed out, which turns the unit off. Check the timer settings. ••Wait for the power to come back. If you have the Auto Restart function enabled, your unit will resume its last operation several minutes after power is restored. 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. 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. ••This symptom requires installing a drain hose under the base pan. Contact the installer. the heating operations, Water leaks from the In condensed water drops from outdoor unit. the heat exchanger. A clicking sound can be heard when the unit starts or stops due to movement of the reversing valve. Creaking sound: The plastic There is noise or parts of the indoor unit creak ••These are normal symptoms. The vibration. when they shrink or expand noise will stop. due to sudden temperature changes. Flowing or Blowing sound: This is the flow of refrigerant through the air conditioner. Odors (such as cigarette ••If the smell does not disappear, you The indoor unit smoke) may be absorbed into need to wash the filter. If this does not gives off an odor. the indoor unit and discharged work, contact the service center to with airflow. clean your heat exchanger. When Heating Mode starts, the ••This symptom is normal. Please wait vane is almost closed, and no until the unit has generated enough air comes out, even though warm air to blow through the indoor the outdoor unit is operating. unit. ••In Heating Mode, ice/frost is built up The air conditioner on the coils when the outside does not emit warm The outdoor unit is in temperature falls. This function air. Defrosting Mode. removes a layer of frost on the coil, and it should finish in approximately 15 minutes. Outside temperature is too ••The heating effect may not be low. sufficient. 37 EN Problem Possible Causes Corrective Action ••Find the Wi-Fi network connected to your smartphone and remove it, then register your appliance on LG SmartThinQ. • • Turn off the Mobile data of your Mobile data for your smartphone and register the appliance smartphone is turned on. using the Wi-Fi network. ••The wireless network name (SSID) The wireless network name should be a combination of English (SSID) is set incorrectly. letters and numbers. (Do not use Your home appliance special characters.) and smartphone is ••Only a 2.4 GHz router frequency is not connected to the supported. Set the wireless router to Wi-Fi network. GHz and connect the appliance to The router frequency is not 2.4 2.4 the wireless router. To check the GHz. router frequency, check with your Internet service provider or the router manufacturer. ••If the distance between the appliance and the router is too far, the signal The distance between the may be weak and the connection may appliance and the router is too not be configured correctly. Move the far. location of the router so that it is closer to the appliance. The password for the Wi-Fi that you are trying to connect to is incorrect. NOTE ••Some functions may not be supported, depending on the model. 38 Memo
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