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 EN ENGLISH LW1516ER LW1816ER LW2516ER LW1521ERSM LW1821ERSM LW2521ERSM *MFL70960606* MFL70960606 Rev.05_100520 www.lg.com Copyright © 2017 - 2020 LG Electronics Inc. All Rights Reserved.
TABLE OF CONTENTS TABLE OF CONTENTS 3 SAFETY INSTRUCTIONS 19 SMART FUNCTIONS 3 19 IMPORTANT SAFETY INSTRUCTIONS LG ThinQ Application 8 PRODUCT OVERVIEW 22 MAINTENANCE 8 8 22 Exterior Parts Interior Parts 9 INSTALLATION 9 Electrical Data 10 Parts Included 11 11 11 12 13 14 How to Install the Unit Window Requirements Storm Window Requirements Preparation of Cabinet Cabinet Installation Unit Installation 16 OPERATION 16 17 18 18 18 Control Panel and Remote Control Wireless Remote Control Vent
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. ●●Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only. ●●Connect to a properly rated, protected, and sized power circuit to avoid electrical overload. ●●Always plug into a grounded outlet.
SAFETY INSTRUCTIONS 5 EN ● 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 EN 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 ignition sources (for CAUTION associated with older units. Please follow all precautions and advisories. - Use caution while handling and prevent damage to unit. Do not put any holes into product for any reason.
PRODUCT OVERVIEW PRODUCT OVERVIEW Exterior Parts Interior Parts 7 3 1 4 5 2 4 1 5 8 6 6 3 2 7 1 Control Panel 1 Evaporator 2 Remote Control 2 Air Guide 3 Air Filter 3 Brace 4 4 Compressor 5 5 Condenser 6 Front Grille 6 Base Pan 7 Air Outlet 7 Power Cord 8 Cabinet
INSTALLATION INSTALLATION RESET Electrical Data Power cord may include a current interrupter device. TEST and RESET buttons are provided on the plug case. The device should be tested on a periodic basis by first pressing the TEST button and then the RESET button. If the TEST button does not trip or if the RESET button will not stay engaged, discontinue use of the air conditioner and contact a qualified service technician.
INSTALLATION Parts Included (Appearance May Vary) Heatproof foam (2) (Adhesive backed) Foam-PE (2) (Adhesive backed) Foam strip (Non-adhesive) Right curtain panel Lower panel guide (2) Window locking bracket Left curtain panel Support bracket (2) Type 'A' Screws (12) Type 'B' Screws (7) Carriage Bolts (2) Lock Nuts (4) Sill bracket (2) Type 'C' Screws (5) Type 'D' Screws (2) Flat-blade screwdriver Adjustable wrench Level Scissors or Cutting Knife Pencil Tools Needed Phillips-head scre
INSTALLATION 11 EN How to Install the Unit 1 2 3 NOTE To prevent vibration and noise, make sure the unit is installed securely and firmly. Install the unit out of direct sunlight. There should be no obstacles, such as a fence or wall, within 20" from the back of the cabinet because it will prevent heat radiation of the condenser. Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner.
INSTALLATION Preparation of Cabinet 1 4 Remove 4 screws which fasten the cabinet at both sides and at the back. (Keep the screws for later use.) Insert the hooks on the lower panel guides into the slots on the bottom of the cabinet. Make sure that the flanges on the lower panel guides will face toward the inside of the room. Shipping Screws Hook 2 Slide the unit from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet.
INSTALLATION 13 EN 3 Cabinet Installation Carefully place the cabinet back in the window and align the cabinet track holes with the support brackets. Attach each support bracket to the cabinet through a cabinet track hole, using a type D screw and a lock nut. Use the first track hole past the sill bracket on the outer edge of the window sill. Tighten the lock nuts on the support brackets to secure them to the sill brackets.
INSTALLATION 5 Pull each curtain panel out until it meets the window sash track. Pull the bottom window sash down behind the upper panel guide until they meet. Upper Panel Guide Sash Track Inside Window Sill Front Angle CAUTION ● The unit is heavy. Use an assistant to help lift the unit and set it in place. Lifting and maneuvering the unit by yourself could result in injury.
INSTALLATION 15 EN 4 Before installing the front grille, fold out the vent control lever located to the left of the control panel, as shown below 5 Connect the wire harness before assembling the front grille. 8 6 After the air conditioner is installed, measure the curtain panel on each side and cut the adhesive-backed heatproof foam to fit each panel. The size of the panels may differ. Remove the backing from the heatproof foam and attach the foam to the curtain panels.
OPERATION OPERATION Control Panel and Remote Control Remote Control 5 6 1 7 7 2 3 4 3 2 4 1 NOTE ● The feature may be changed according to the type of model. 1 Power Press to turn the air conditioner ON or OFF. 2 Fan Speed Press to set the fan speed to Low (F1), Medium (F2), or High (F3). 3 Delay ON/OFF Timer Delay ON - When the air conditioner is off, set it to automatically turn on from 1 to 24 hours later, at its previous mode and fan settings.
OPERATION 17 EN 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. Wireless Remote Control Inserting Battery 1 Push out the cover on the back of the remote control with your thumb. 2 With the plus and minus poles facing as marked, insert one new AAA 1.5 V battery. 3 Reattach the cover. NOTE ● control panel, not the remote control.
OPERATION 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. Additional Features 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.
SMART FUNCTIONS 19 EN SMART FUNCTIONS 3 Connect your smartphone to the wireless router. LG ThinQ Application This feature is only available on models with the or ThinQ logo The LG ThinQ application allows you to communicate with the appliance using a smartphone. LG ThinQ Application Features Communicate with the appliance from a smartphone using the convenient smart features.
SMART FUNCTIONS Installing the LG ThinQ Application Using LG ThinQ to Diagnose Issues Search for the LG ThinQ application from the Google Play Store or Apple App Store on a smartphone. Follow instructions to download and install the application. If you experience a problem with your Wi-Fi equipped appliance, it can transmit troubleshooting data to a smartphone using the LG ThinQ application. ● Launch the LG ThinQ application and select the Smart DiagnosisTM feature in the menu.
SMART FUNCTIONS 21 EN FCC Notice This following notice cover the transmitter module contained in this product. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
MAINTENANCE MAINTENANCE 2 Wash the filter using lukewarm water below 40 °C (104 °F). 3 Gently shake the excess water from the filter and replace. WARNING Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops. Air Filter Check the air filter at least twice a month to see if cleaning is necessary. Trapped particles in the filter can build up and block the airflow, reducing cooling capacity and causing an accumulation of frost on the evaporator.
TROUBLESHOOTING 23 EN 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 25 EN 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 cabinet 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.
WARRANTY 27 EN WARRANTY ARBITRATION NOTICE: THIS LIMITED WARRANTY CONTAINS AN ARBITRATION PROVISION THAT REQUIRES YOU AND LG TO RESOLVE DISPUTES BY BINDING ARBITRATION INSTEAD OF IN COURT, UNLESS YOU CHOOSE TO OPT OUT. IN ARBITRATION, CLASS ACTIONS AND JURY TRIALS ARE NOT PERMITTED. PLEASE SEE THE SECTION TITLED “PROCEDURE FOR RESOLVING DISPUTES” BELOW. WHAT THIS WARRANTY COVERS: LG Electronics U.S.A., Inc.
WARRANTY ● Product where the original factory serial numbers have been removed, defaced or changed in any way. ● Repairs when product is used in other than normal and usual household use (e.g. rental, commercial ’s manual. ● The removal and reinstallation of the Product if it is installed in an inaccessible location. THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING AND WITHOUT LIMITATION TO, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
WARRANTY 29 EN PROCEDURE FOR RESOLVING DISPUTES: ALL DISPUTES BETWEEN YOU AND LG ARISING OUT OF OR RELATING IN ANY WAY TO THIS LIMITED WARRANTY OR THE PRODUCT SHALL BE RESOLVED EXCLUSIVELY THROUGH BINDING ARBITRATION, AND NOT IN A COURT OF GENERAL JURISDICTION. BINDING ARBITRATION MEANS THAT YOU AND LG ARE EACH WAIVING THE RIGHT TO A JURY TRIAL AND TO BRING OR PARTICIPATE IN A CLASS ACTION. Definitions. For the purposes of this section, references to “LG” mean LG Electronics U.S.A., Inc.
WARRANTY the arbitration, LG will pay your attorneys’ fees and expenses as long as they are reasonable, by considering factors including, but not limited to, the purchase amount and claim amount. Notwithstanding the foregoing, if applicable law allows for an award of reasonable attorneys’ fees and expenses, an arbitrator can award them to the same extent that a court would.
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