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 MFL69490001 Rev.05_121817 www.lg.com Copyright © 2016 - 2017 LG Electronics Inc. All Rights Reserved.
TABLE OF CONTENTS This manual is produced for a group of products and 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.................................................. 4 OPERATION.............................................................. 9 Notes for Operation............................................................................
ENGLISH 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 the indicate matters and operations that can cause risk. Read the part with this symbol carefully and follow the instructions in order to avoid risk.
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: 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.
ENGLISH 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.
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. 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.
ENGLISH 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.
••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.
ENGLISH 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. •• 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.
Wireless Remote Control Inserting Batteries Operating method 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.
Setting the Current Time Insert batteries. •• The icon below blinks at the bottom of the display screen. You can use the ON/OFF button of the indoor unit to operate the air conditioner when the remote control is unavailable. 2 Press 3 Press SET/CANCEL button to finish. or button to select the minutes. 1 Open the front cover (Type1) or horizontal vane(Type2). 2 Press the ON/OFF button. Type1 NOTE ON/OFF •• The On/Off Timer is available after setting the current time.
Using Wireless Remote Control You can operate the air conditioner more conveniently with the remote control. Button Display Screen - 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 To select the heating mode. TEMP * JET MODE SWING ℃↔℉ [5 s] FUNC. TIMER MODE 1 kW [3 s] SWING SET UP To select the fan mode.
2 * CANCEL FAN SPEED MODE *LIGHT OFF TEMP * JET MODE 1 kW [3 s] SWING ℃↔℉ [5 s] FUNC. TIMER SWING SET UP ROOM TEMP DIAGNOSIS [5 s] SET CANCEL CANCEL - 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. ROOM TEMP To display the room temperature. °C↔°F[5 s] To change unit between °C and °F *ENERGY SAVING To minimize power consumption.
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. FAN SPEED MODE * To maintain a minimum room temperature and prevent objects in the room from freezing. FUNC. TEMP JET MODE 1 kW [3 s] SWING ℃↔℉ [5 s] FUNC. TIMER SWING SET UP To scare away a mosquito.
When the air conditioner is turned on again after a power failure, this function restores the previous settings. Using the Mode Function ENGLISH Restarting the Air Conditioner Automatically This function allows you to select the desired function. Cooling Only Model Cooling Mode Disabling Auto Restart 1 Open the front cover (Type1) or horizontal vane(Type2).
Heating Mode Fan Mode 1 Turn the appliance on. 2 This mode only circulates the indoor air without changing the room temperature. Press MODE button repeatedly to select the Heating Mode. 1 Turn the appliance on. 2 Press MODE button repeatedly to select the Fan Mode. •• 3 is displayed on the display screen. Press or temperature. •• button to set the desired 3 is displayed on the display screen. Press FAN SPEED button to adjust the fan speed.
Auto Operation(Artificial Intelligence) This mode automatically sets the fan speed and temperature depending on the room temperature. Changing Room Temperature Quickly 1 Turn the appliance on. 2 This function allows you to cool indoor air quickly during the summer or warm it quickly during winter. Press MODE button repeatedly to select the Auto Operation. •• Cooling & Heating model : The Jet Mode function is available with Cooling, Heating and Dehumidification Mode.
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.
Setting the On/Off Timer 1 Press TIMER 2 Press 3 Press SET/CANCEL button to finish. or Canceling the On Timer TIMER 2 Press 3 Press SET/CANCEL button to finish. button repeatedly. Press SET/CANCEL button to cancel the setting. button to select the minutes. NOTE •• This function is disabled when you set Simple Timer. Canceling the Off Timer 1 Press TIMER button repeatedly. •• The icon below blinks at the bottom of the display screen.
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 2 Press TIMER button repeatedly. •• The icon below blinks at the bottom of the display screen. 3 4 Press or to 7 hours). button to select the hour (up Press SET/CANCEL button to finish.
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 •• Press LIGHT OFF button. 1 Turn the appliance on. 2 Press kW [3 s] ENGLISH Using the Energy Display Function(Optional) You can set the brightness of the indoor unit display screen. button and hold it about 3 seconds.
Using the Comfort Air Function(Optional) Using the Energy Saving Function(Optional) Comfort Vane Operation This function minimizes power consumption during Cooling and increases the set temperature to the optimal level for a more comfortable environment.
1 Turn the appliance on. 2 Press ENERGY CTRL button. ENGLISH Using the Energy Control Function(Optional) •• 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.
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.
Using the Silent Function 1 Press FUNC button repeatedly to select the desired function. This function prevents potential claims by neighbors, reducing noise from outdoor units. 2 Press SET/CANCEL button to cancel the function. is displayed on the display screen. •• NOTE •• This function is disabled when you press MODE or ENERGY CTRL or JET MODE button. Using the Air Purification Function These functions supply clean and fresh air by ion particles and the filter.
Using the Low Heating 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. •• , 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.
Using the Comfort Sleep Function •• , 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. ENGLISH This function operates the air conditioner automatically to make the comfortable sleep environment.
Using the Smart Diagnosis Function(Optional) Smart Diagnosis allows users to conveniently check maintenance information of a product. •• Easily checking operational status of the air conditioner. •• Easily understanding the error messages. •• Helping to improve device performance and expand product life. 1 Search and download LG A/C Smart Diagnosis in Google play or App store. 2 Click the Receive button on the main screen on your phone.
ENGLISH 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. •• 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.
Type Air filter Description Clean with a vacuum or hand wash. Interval 2 weeks Triple filter Clean with a vaccum or brush. Every 3 months 3M filter Clean with a vaccum or brush. Every 6 months Use dry cotton bud to remove any dust. Every 6 months Ionizer(Optional) Clean the Indoor unit surface by using a soft, dry cloth. Indoor unit Outdoor unit Regularly Have a professional clean the condensate drain pan. Once a year Have a professional clean the condensate drain pipe.
Clean the Air Filter NOTE •• The air filter can be broken when it is bent. 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 Remove it from the indoor unit. 4 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.
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 Type1 Type2 Type2 4 32 Clean the filter with a vacuum cleaner. 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.
ENGLISH 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. If the problem persists, contact your local service center. Problem Possible Causes Corrective Action Burning smell and strange sounds are coming from the unit.
Problem Possible Causes Corrective Action Air is not circulating properly. •• Make sure that there are no curtains, blinds, or pieces of furniture blocking the front of the air conditioner. The air filter is dirty. •• Clean the air filter once every 2 weeks. •• See “Clean the Air Filter” for more information. The room temperature is too high. •• In summer, cooling the indoor air fully may take some time. In this case, select the Jet Mode to cool the indoor air quickly.
Problem Possible Causes Corrective Action ENGLISH The air outlet on the indoor unit is discharging mist. The cooled air from the air conditioner •• When the room temperature decreases, this phenomenon will disappear makes mist. Water leaks from the outdoor unit. In the heating operations, condensed water drops from the heat exchanger. There is noise or vibration. A clicking sound can be heard when the unit starts or stops due to movement of the reversing valve.
