LG LW2522ERSM (01) PDF MANUAL

Your safety and the safety of others are very important. The manual provides many important safety messages. Always read and follow all safety messages.

The safety alert 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.

WARNING: You may be killed or seriously injured if you do not follow instructions.

CAUTION: You may be injured or cause damage to the product if you do not follow instructions.

Safety messages explain the potential hazard, how to reduce the chance of injury, and what can happen if instructions are not followed.

Use this appliance only for its intended purpose.

Never attempt to operate this appliance if it is damaged, malfunctioning, partially disassembled, or has missing or broken parts, including a damaged cord or plug.

Repair or immediately replace all power cords that have become frayed or otherwise damaged. Do not use a cord that shows cracks or abrasion damage along its length or at either end.

Do not run cord under carpets or mats where it could be stepped on and damaged.

Keep the cord out from under heavy objects like tables or chairs.

Do not place the power cord near a heat source.

Do not use an adaptor or plug the product into a shared outlet.

Do not tamper with controls.

If you detect a strange sound, a chemical or burning smell, or smoke coming from the appliance, unplug it immediately, and contact the LG Electronics Customer Information Center.

Never unplug the appliance by pulling on the power cord. Always grip the plug firmly and pull straight out from the outlet.

Do not grasp the power cord or touch the appliance controls with wet hands.

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 the 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.

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 the use of the appliance by a person responsible for their safety.

The interior of the product must only be cleaned by an authorized service center or a dealer.

Do not use solvent-based detergent on the product. Doing so can cause corrosion or damage, product failure, electrical shock, or fire.

Children should be supervised to ensure that they do not play with the air conditioner.

Do not start/stop operation by plugging/unplugging the power cord.

The power cord of this appliance is equipped with a three-prong (grounding) plug. Use this with a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock.

The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded.

DO NOT CUT OR REMOVE THE THIRD (GROUND) PRONG FROM THE POWER PLUG.

Adapter Use (Temporary Connection):

Because of potential safety hazards, the use of an adapter plug is strongly discouraged. However, if you wish to use an adapter, a TEMPORARY CONNECTION may be made. Use a UL-listed adapter, available from most local hardware stores.

The large slot in the adapter must be aligned with the large slot in the receptacle to assure a proper polarity connection.

Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal, not insulated, and the wall receptacle is grounded through the house wiring. Have the circuit checked by a qualified electrician.

Disconnect the power cord from the adapter using one hand on each. Otherwise, the adapter ground terminal might break. Do not use the appliance with a broken adapter plug.

Frequent Disconnection:

Do not use an adapter plug in situations where the appliance will be disconnected often. Unplugging the power cord frequently can lead to an eventual breakage of the ground terminal. The wall power outlet should be replaced by a three-slot (grounding) outlet instead.

Follow these basic precautions to reduce the risk of minor or moderate injury, malfunction, or damage:

Installation:

Take care during installation that exhaust or condensation does not damage nearby property.

Follow installation instructions exactly to avoid excessive vibration or water leakage.

Wear gloves and use caution when unpacking and installing. Screws or sharp edges can cause injuries.

When installing or moving, be careful not to pinch, crush, or damage the power cord.

Ensure supply and return air openings in the conditioned space are considered if installed in areas like false ceilings not used as return air plenums, ensuring conditioned air doesn’t directly mix with false ceiling air.

Operation:

This appliance is not for precision refrigeration (e.g., preserving pets, food, machinery, art).

Ensure air inlet and outlet are free from obstructions.

Do not step on or place heavy objects on the appliance.

Operate only with the filter securely installed.

Do not drink water drained from the appliance.

Ventilate sufficiently when used simultaneously with a heating appliance (e.g., heater).

Do not expose people, animals, or plants to cold or hot wind for extended periods.

Remove batteries from the remote if not used for an extended period.

Never mix different battery types or old/new batteries in the remote.

Stop using the remote if there is a fluid leak. Wash skin/clothes with clean water if exposed. If fluid is swallowed, rinse mouth thoroughly and consult a doctor.

Do not recharge or disassemble batteries.

Maintenance:

Clean the filter every two weeks.

Never touch metal parts when removing the air filter.

Never use strong cleaning agents, solvents, or spray water when cleaning. Use a smooth cloth.

Use a soft cloth to clean the appliance. Do not use waxes, thinners, or harsh detergents.

This appliance should be installed in accordance with the National Electrical Code.

WARNING:

Use of extension cords could cause serious injury or death. Do not use an extension cord with this window air conditioner.

Do not use surge protectors or multi-outlet adapters with this window air conditioner.

Never push the TEST button during operation as it can damage the plug. Do not remove, modify, or immerse the plug. If the interrupter device trips, correct the cause before further use.

CAUTION:

The conductors inside the power cord are surrounded by shields that monitor leakage current (not grounded). Examine the cord periodically for damage. Do not use if shields become exposed. Avoid shock hazard. The unit is not user-serviceable; do not open the tamper-resistant sealed portion. This unit is not intended as an ON/OFF switch.

Power Cord Interrupter Device:

The power cord includes a current interrupter device with TEST and RESET buttons. Test it periodically: first press TEST, then RESET. If TEST doesn’t trip or RESET doesn’t stay engaged, discontinue use and contact a qualified service technician.

Specific Model Requirements:

Models LW1821ERSM, LW1822ERSM, LW1824RD:

Use Wall Receptacle: Standard 240 V, 3-wire grounding receptacle rated 15 A / 240 VAC / 60 Hz

Power Supply: Use 15 A, time delay fuse or 15 A, circuit breaker.

Models LW2521ERSM, LW2522ERSM, LW2524RD:

Use Wall Receptacle: Standard 240 V, 3-wire grounding receptacle rated 20 A / 240 VAC / 60 Hz

Power Supply: Use 20 A, time delay fuse or 20 A, circuit breaker.

1. Install securely and firmly to prevent vibration and noise.

2. Install out of direct sunlight.

3. Ensure no obstacles (like a fence or wall) are within 20 inches from the back of the cabinet to allow proper heat radiation from the condenser.

CAUTION: Do not cover or block any side or top louvers. All side louvers must remain exposed to the outside and unobstructed.

4. Install the unit slightly tilted (about 1/2 inch) so the back is lower than the front. This allows condensed water to flow outside.

5. Install the unit with the bottom between 30 to 60 inches above the floor level.

This unit is designed for installation in standard double-hung windows with actual opening widths from 29″ to 41″.

The top and bottom window sashes must open sufficiently to allow a clear vertical opening of 19″ minimum from the bottom of the upper sash to the inside sill.

NOTE: All supporting parts must be secured to firm wood, masonry, vinyl, fiberglass, or metal. This product is a window air conditioner; standard single-hung or double-hung windows are required. Non-window installations (e.g., sleeves, wall openings) are not recommended.

Storm window frames can prevent the air conditioner from tilting correctly for drainage.

1. To ensure proper drainage, attach a 2″ x 2″ piece of wood to the inner sill. Trim it to fit inside the window frame length.

2. The top of this wood shim must be at least 1 1/4″ higher than the top of the storm window frame.

3. Secure the wood shim to the sill with nails or screws.

4. If needed, attach another 2″ x 2″ wood strip flush against the back of the inner sill.

1. Remove the 4 shipping screws fastening the cabinet at both sides and the back. Keep these screws for later use.

2. Grip the base pan handle and pull forward while bracing the cabinet to slide the unit out.

CAUTION: The unit is heavy. Use proper lifting techniques and get assistance if needed to prevent injury.

3. Cut the window sash seals (Foam-PE) to the proper length. Peel off the backing and attach the adhesive foam to the underside of the window sash and the bottom of the window frame.

4. Insert the hooks on the lower panel guides into the slots on the bottom of the cabinet. Ensure the flanges face inward.

CAUTION: The lower panel guides are easily broken. Handle carefully during installation.

5. Insert the top and bottom rails of the curtain panels (Left and Right) into the upper and lower panel guides on the cabinet.

6. Fasten the curtain panels to the unit using 10 type A screws. Fasten screws behind the curtain panel.

NOTE: A long screwdriver makes installing screws easier.

1. Open the window. Mark a line on the center of the inside sill, extending across the center of the outside sill. Loosely attach each sill bracket to a support bracket using a carriage bolt and a lock nut.

2. Carefully place the cabinet in the window, aligning the center hole on the bottom front with the center line on the sill. Pull the bottom window sash down behind the upper guide until they meet. Align the support brackets with the cabinet track holes and mark the sill along the sides of each sill bracket. Remove the cabinet. Attach each sill bracket to the outside sill between the marks using 2 type B screws.

3. Carefully place the cabinet back in the window. 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). Tighten the lock nuts on the support brackets to secure them. Install the cabinet with a slight downward tilt (about 1/2″) to the outside.

CAUTION: Do not drill a hole in the bottom pan. The product needs about 1/2” of water in the pan to operate correctly. No need to add water if dry.

4. Mount the cabinet to the window sill using 3 type B screws in the holes on the front angle (part resting on the inside sill).

1. With an assistant, slide the unit into the cabinet. Do not push on controls or finned coils.

CAUTION: The unit is heavy. Use an assistant to lift and set it in place to avoid injury. Hold the unit firmly until the window frame is lowered behind the upper guide. If the unit falls, it could cause injury or damage.

Reinstall the screws removed from the cabinet sides during preparation (Step 1 of Cabinet Preparation).

2. 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.

NOTE: Do not pull the sash down so tightly that curtain panel movement is restricted.

3. Use a screwdriver or power drill to attach the curtain panels to the window sashes by inserting type C screws through the cabinet holes into the sashes.

4. To prevent broken glass or window damage, on vinyl or similar windows, attach the window locking bracket with a type C screw.

5. Cut the non-adhesive foam strip to the proper length and insert it between the upper and lower window sashes.

6. Connect the wire harness before assembling the front grille.

7. Attach the front grille by inserting the tabs on the grille into the slots on the front top of the cabinet. Push the grille in until it snaps into place.

8. Remove the air filter from the front grille by pulling it forward and then up slightly. Secure the front grille with 2 type A screws through the grille. Reinstall the filter.

NOTE: Features may vary by model. Remove protective film from control panel before use.

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 AC is off, press to set it to turn on automatically 1 to 24 hours later in its previous mode/fan settings.

Delay OFF: When AC is on, press to set it to turn off automatically 1 to 24 hours later.

NOTE: Each press advances the timer by 1 hour. After the last press, the display returns to the temperature setting.

4. Operation Mode: Press the Mode button to cycle through: Energy Saver / Cool / Fan / Dry.

Energy Saver: Compressor and fan turn off when set temperature is reached. Fan turns on approx. every 3 minutes to check room temperature.

Cool: Cools and dehumidifies. Use Temp buttons (∧/∨) for desired temperature and Fan Speed button for circulation speed.

Fan: Circulates air without compressor running. Use Fan Speed button for High/Medium/Low. Set temperature cannot be adjusted.

Dry: Dehumidifies in rainy/damp conditions. Compressor runs and fan speed is fixed at Low. Compressor and fan turn off when set temperature is reached. Fan speed cannot be adjusted.

5. Wi-Fi (Wi-Fi Model Only): Enables connection to home Wi-Fi. Follow instructions in the LG ThinQ app.

6. Clean Filter: The ‘Clean Filter’ LED lights up after 250 hours of operation as a reminder. After cleaning the filter, press Temp ∧ and ∨ together on the control panel (not remote) to turn off the light.

7. Temperature Control: Press ∧ or ∨ arrows to increase or decrease the set temperature. The thermostat maintains the desired temperature between 60°F–86°F (16°C–30°C).

Inserting Batteries:

1. Push out the cover on the back of the remote with your thumb.

2. Insert two new AAA 1.5V batteries, matching the plus (+) and minus (-) poles as marked.

3. Reattach the cover.

NOTE:

Two new batteries are supplied.

Do not use rechargeable batteries. Ensure batteries are new.

Remove batteries if the AC won’t be used for an extended time to prevent discharge.

Keep the remote away from extremely hot or humid places.

For optimal operation, ensure the remote sensor is not exposed to direct sunlight.

The remote control will not function properly if the AC infrared sensor is exposed to direct light or if there are obstacles between the remote and the AC.

If the air conditioner turns off due to a power outage, it will restart automatically once power is restored, using the same settings that were active before the power outage.

The unit defaults to the Energy Saver mode each time it is switched on, except when it was last in Fan mode or when power is restored after an outage (in which case it uses Auto Restart settings).

Horizontal Airflow: Adjust by moving the levers of the vertical louvers (the up-and-down slats) to the left or right.

Vertical Airflow: Adjust by touching the horizontal louvers (the side-to-side slats) to direct airflow up or down.

This air conditioner has a slinger fan. The fan’s outer ring picks up condensed water from the base pan if the water level gets high enough. This water is then expelled through the condenser by the fan, which helps make the air conditioner more efficient.

When the weather is extremely hot, the unit may turn off automatically to protect the compressor.

Available on models with the ThinQ logo, this application allows you to communicate with and control the air conditioner using a smartphone. Features include:

Smart Diagnosis™: Helps diagnose problems if you experience issues.

Settings: Allows setting various options on the appliance via the app.

NOTE: If you change your wireless router, internet provider, or password, you must delete the registered appliance from the app and register it again. The app is subject to change for improvements. Functions may vary by model.

1. Check the distance between the appliance and your wireless router (Wi-Fi network). If too far, the signal may be weak, causing long registration times or failure.

2. Turn off Mobile data or Cellular Data on your smartphone.

3. Connect your smartphone to the wireless router.

Verify connection by checking the Wi-Fi LED on the control panel.

The appliance supports 2.4 GHz Wi-Fi networks ONLY. Check your network frequency with your ISP or router manual.

LG ThinQ is not responsible for network connection problems or faults caused by the network connection.

If connection trouble occurs, consider a Wi-Fi repeater (range extender) if the appliance is too far from the router.

Connection may fail or be interrupted due to the home network environment.

Connection may not work properly depending on your Internet service provider.

The surrounding wireless environment can slow down the wireless network service.

Appliance registration may fail due to wireless signal issues. Unplug, wait a minute, then try again.

If your router’s firewall is enabled, disable it or add an exception.

Wireless network name (SSID) should be English letters and numbers (no special characters).

Smartphone UI may vary by mobile OS and manufacturer.

If the router uses WEP security, setup may fail. Change to another protocol (WPA2 recommended) and register again.

Search for “LG ThinQ” in the Google Play Store or Apple App Store on your smartphone. Follow the instructions to download and install the application.

This feature is available on models with the Smart Diagnosis logo (a phone icon or ThinQ).

If you experience a problem with your Wi-Fi equipped appliance, it can transmit troubleshooting data to your smartphone using the LG ThinQ app.

1. Launch the LG ThinQ application on your smartphone.

2. Select the Smart Diagnosis™ feature in the menu.

3. Follow the instructions provided within the LG ThinQ application.

NOTE: Service may not operate due to external factors (Wi-Fi issues, app store policy, etc.). Feature subject to change and may vary by location.

Check the air filter at least twice a month. Trapped particles reduce cooling capacity and can cause frost buildup.

WARNING: Disconnect power before cleaning.

1. Remove the air filter from the front grille by pulling it forward and then slightly up.

2. Wash the filter using lukewarm water below 40°C (104°F).

3. Gently shake excess water from the filter.

4. Allow the filter to dry completely before replacing it.

NOTE: Never touch metal parts when removing the filter. Features may vary by model.

WARNING: Disconnect power before cleaning.

Use a vacuum cleaner to remove dust from the air inlet and outlet.

Wipe the front grille and inlet grille with a cloth dampened in a mild detergent solution.

Wash the cabinet with mild soap or detergent and lukewarm water. Afterwards, polish using liquid appliance wax.

NOTE: Never use strong cleaning agents, solvents, or spray water. Use a smooth cloth. Do not use waxes, thinners, or harsh detergents.

To ensure continued peak efficiency, the condenser coils (outside of unit) should be checked periodically. If they are clogged with soot or dirt from outside air, they should be professionally cleaned. Contact an Authorized Service Center for repair and maintenance (call 1-800-243-0000). Have your model and serial number ready (found on the side of the cabinet).

1. High Pitched Chatter: Today’s high-efficiency compressors may make this sound during the cooling cycle.

2. Sound of Rushing Air: You may hear air being moved by the fan at the front of the unit.

3. Gurgle/Hiss: Noise may be heard due to refrigerant passing through the evaporator during normal operation.

4. Vibration: The unit might vibrate and make noise due to poor wall/window construction or incorrect installation.

5. Pinging or Swishing: Droplets of water hitting the condenser during normal operation can cause these sounds.

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. When power is restored, wait 3 minutes to restart the air conditioner to prevent tripping of the compressor overload.

The current interrupter device is tripped.

Press the RESET button located on the power cord plug. If the RESET button will not stay engaged, discontinue use of the air conditioner and contact a qualified service technician.

Airflow is restricted.

Make sure there are no curtains, blinds, or furniture blocking the front of the air conditioner.

The temp control may not be set correctly.

Set the desired temperature to a level lower than the current temperature.

The air filter is dirty.

Clean the filter at least every 2 weeks. See the ‘MAINTENANCE’ section.

The room may have been hot.

When the air conditioner is first turned on, you need to allow time for the room to cool down.

Cold air is escaping.

Check for open furnace floor registers and cold air returns.

Cooling coils have iced up.

See ‘Air conditioner freezing up’ below.

The cooling coils are iced over.

Ice may block the air flow and obstruct the air conditioner from properly cooling the room. Set the mode control at High Fan or High Cool to help melt the ice.

Hot, humid weather.

Yes, this is normal in hot and humid conditions as the unit removes moisture from the air.

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 (about 1/2 inch tilt).

Moisture removed from air drains into the base pan.

This is normal for a short period in areas with little humidity and normal for a longer period in very humid areas. The slinger fan helps disperse this water.

Dirty air filter – air restricted.

Clean the air filter.

Outside temperature extremely hot.

Refer to installation instructions or check with the installer. The unit may cycle more frequently under extreme heat load.

Air movement sound.

This is normal. If too loud, set to a lower FAN Setting.

Window vibration – poor installation.

Refer to installation instructions or check with the installer to ensure the unit is securely installed.

Set temperature too low.

Increase the set temperature using the Temp ∧ button.

Remote control not located within range.

Place the remote control within 20 feet & 120° radius of the front of the unit.

Remote control signal obstructed.

Remove any obstructions between the remote and the unit’s sensor.

Air conditioner is turned off.

Turn the air conditioner on.

Wireless router is turned off.

Turn the router on.

Check other Wi-Fi troubleshooting steps.

The Wi-Fi router is too far from the air conditioner.

Move the router closer to the air conditioner or purchase and install a Wi-Fi repeater (signal booster).

You do not have permission to use the router or it is incompatible.

Make sure you are selecting the correct wireless router from the list. The router must be set to 2.4 GHz.

The password for the Wi-Fi network was entered incorrectly.

Delete your home Wi-Fi network from the app settings and begin the registration process again, entering the correct password.

Mobile data for your smartphone is turned on.

Turn off the Mobile data (Cellular Data) of your smartphone before registering the appliance.

The wireless network name (SSID) is set incorrectly.

The wireless network name (SSID) should be a combination of English letters and numbers. (Do not use special characters). Ensure you are connecting to the correct SSID.

The router frequency is not 2.4 GHz.

Only a 2.4 GHz router frequency is supported. Set the wireless router to 2.4 GHz and connect the appliance to the wireless router. To check the router frequency, check with your Internet service provider or the router manufacturer.

The appliance is too far from the router.

If the appliance is too far from the router, the signal may be weak and the connection may not be configured correctly. Move the router closer to the appliance or purchase and install a Wi-Fi repeater.

If you see “CH” in the display, please call 1-800-243-0000 for service assistance.