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 : WINDOW (INVERTER) EN English www.lg.com MFL71143101 Rev.01_010419 Copyright © 2018 LG Electronics Inc. All Rights Reserved.
TABLE OF CONTENTS TABLE OF CONTENTS 3 SAFETY INSTRUCTIONS 16 SMART FUNCTIONS 3 16 IMPORTANT SAFETY INSTRUCTIONS LG SmartThinQ Application 8 PRODUCT OVERVIEW 18 MAINTENANCE 8 8 18 Exterior Parts Interior Parts 9 INSTALLATION 9 Circuit Breaker Installation 9 Installation Overview 10 How to Install the Unit 10 Drainage (Optional) 11 Installation of the Unit 11 Space for Outside Air Flow 12 OPERATION 12 13 13 14 14 15 15 Control Panel and Remote Control Using the Light Off Function Using the Au
SAFETY INSTRUCTIONS 3 SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or injure you and others. All safety messages will follow the safety alert symbol and either the word WARNING or CAUTION.
SAFETY INSTRUCTIONS ● When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts. and authorized personnel only. ● Connect to a properly rated, protected, and sized power circuit to avoid electrical overload. ● Always plug into a grounded outlet. ● Do not under any circumstances, cut or remove the third (ground) prong from the power cord.
SAFETY INSTRUCTIONS 5 ● If water enters the product, turn off the power at the main circuit, then unplug the product and call for service. ● If the product has been submerged, contact an LG Electronics Customer Information Center for instructions before resuming use. ● Unplug the product when unused for long periods. ● Unplug the product before cleaning. ● In the event of a gas leak (propane gas, etc.) do not operate this or any other appliance. Open a window or door to ventilate the area immediately.
SAFETY INSTRUCTIONS CAUTION To reduce the risk of minor or moderate injury to persons, malfunction, or damage to the product or property when using this product, follow basic precautions, including the following: INSTALLATION ●●Take care when installing the product that exhaust or condensation does not damage nearby property. ●●Follow installation instructions exactly to avoid excessive vibration or water leakage. OPERATION ●●This appliance is not intended for use as a precision refrigeration system.
SAFETY INSTRUCTIONS 7 REFRIGERANT (FOR R32 ONLY) WARNING ● Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. ● The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater). ● The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.
PRODUCT OVERVIEW PRODUCT OVERVIEW Exterior Parts Interior Parts 3 9 1 2 8 4 5 1 7 6 6 5 4 3 7 2 1 Control Panel 1 Evaporator 2 Remote Controller 2 Air Guide 3 Air Filter 3 Control Box 4 4 Condenser 5 5 Compressor 6 Air Inlet 6 Base Pan 7 Front Grille 7 Power Cord 8 Cabinet 9 Air Outlet
INSTALLATION INSTALLATION Circuit Breaker Installation Read thoroughly and follow all directions provided. A circuit breaker must be installed between the power source and the unit if the plug is not used (see illustration below). Main Power source Circuit Breaker Use a circuit breaker or time delay fuse. NOTE ● Use 15 A circuit breaker.
INSTALLATION How to Install the Unit Drainage (Optional) 1 Measure the space for installation to assure a good fit. The air conditioner must be installed firmly into place to prevent vibration and noise. The base-pan may overflow due to high humidity. To drain the excess water, remove the drain cap from the base pan of the unit and secure the drain pipe. 2 3 Avoid exposure to direct sunlight. 1 Remove the rubber cap from the hole under the base-pan.
INSTALLATION 11 Installation of the Unit 1 FLASH OR SEAL AROUND EXTERNAL WALL FRAME OR ARCHITRAVE Prepare the hole in the wall so that the bottom of the unit is well supported, the top has minimum clearace and the air inlet louveres have clearance as shown. Holes from the outside through to the cavity should be sealed. The unit should slope down towards the rear by about 10~15 mm to allow water formed during operation to drain.
OPERATION OPERATION Control Panel and Remote Control Remote Control 5 6 7 8 1 8 9 Auto Clean(3 s) 4 7 Light Off(3 s) 3 10 2 4 3 2 1 1 Power Press to turn the air conditioner ON or OFF. 2 Sleep Mode This mode keeps operating noise to a minimum and turns the air conditioner off after a set time. The timer can be set from 1 to 7 hours.
OPERATION 13 6 Clean Filter The Clean Filter LED lights up to notify you and Temp together on the control panel to turn off the Clean Filter light. NOTE ● control panel, not the remote control. ● This feature is a reminder to clean the air light turns on after 250 hours of operation. 7 Fan Speed Press to set the fan speed to Low (F1), Medium (F2), or High (F3). 8 Temperature Control The thermostat monitors room temperature to maintain the desired temperature.
OPERATION Wireless Remote Control Inserting Batteries 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 Ventilation Push the ventilation lever in to the closed position to maintain the best cooling performance. Pull the ventilation lever out to open the vent and draw fresh air into the room. Remove the cover on the back of the remote control.
OPERATION 15 Air Direction of the air conditioner’s louvers. Direction Slinger Fan This air conditioner is equipped with a slinger fan. (See drawing.) The fan’s outer ring picks up the condensed water from the base pan if the water level gets high enough. The water is then picked up by the fan and expelled through the condenser, making levers of the vertical louvers to the left or right. Ring Direction up or down.
SMART FUNCTIONS 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.
SMART FUNCTIONS 17 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. Wi-Fi Function • For appliances with the logo Communicate with the appliance from a smart phone using the convenient smart features.
MAINTENANCE MAINTENANCE 2 40 °C (104 °F). WARNING Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops. Air Filter if cleaning is necessary. Trapped particles in the cooling capacity and causing an accumulation of frost on the evaporator. Cleaning the Air Filter 1 3 Gently shake the excess water from the filter. 4 5 Dry the filter in the shade. Insert the filter in to the Front grille.
TROUBLESHOOTING 19 TROUBLESHOOTING Before Calling for Service The appliance is equipped with an automatic error-monitoring system to detect and diagnose problems at an early stage. If the appliance does not function properly or does not function at all, check the following before you call for service. Normal Sounds You May Hear 1 2 5 4 3 1 High Pitched Chatter 2 Sound of Rushing Air At the front of the unit, you may hear the sound of rushing air being moved by the fan.
TROUBLESHOOTING Problem Air conditioner does not start. Possible Cause Solutions The air conditioner is unplugged. Make sure the air conditioner plug is pushed completely into the outlet. The fuse is blown/circuit breaker is tripped. Check the house fuse/circuit breaker box and replace the fuse or reset the breaker. Power failure. If power failure occurs, turn the mode control to off.
TROUBLESHOOTING 21 Problem Possible Cause Solutions Water drips indoors. The air conditioner is not tilted to the outside. For proper water disposal, make sure the air conditioner slants slightly from the unit front to the rear. Water collects in base pan. Moisture removed from air and drains into base pan. This is normal for a short period in areas with little humidity; normal for a longer period in very humid areas. Outside temperature extremely hot.
TROUBLESHOOTING Wi-Fi Problem Trouble connecting appliance and smartphone to Wi-Fi network. Possible Cause Solutions The password for the Wi-Fi network was entered incorrectly. Delete your home Wi-Fi network and begin the registration process again. Mobile data for your smartphone is turned on. Turn off the Mobile data on your smartphone before registering the appliance. The wireless network name (SSID) is set incorrectly.
