LG LRNU18GS3C0 (01) PDF Document

Contact the installer for installation of your LG LRNU18GS3C0.

No, the LG LRNU18GS3C0 air conditioner is not intended for use by young children or invalids without supervision.

Young children should be supervised to ensure that they do not play with the LG LRNU18GS3C0.

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.

Do not use a defective or underrated circuit breaker. Use the LG LRNU18GS3C0 on a dedicated circuit. There is risk of fire or electric shock.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product. There is risk of fire or electric shock.

Always ground the product. There is risk of fire or electric shock.

Install the panel and the cover of the control box securely. There is risk of fire or electric shock.

Always install a dedicated circuit and breaker. Improper wiring or installation may cause fire or electric shock.

Use the correctly rated breaker or fuse. There is risk of fire or electric shock.

Do not modify or extend the power cable. There is risk of fire or electric shock.

Do not install, remove, or re-install the LG LRNU18GS3C0 unit by yourself (customer). There is risk of fire, electric shock, explosion, or injury.

Be cautious when unpacking and installing the LG LRNU18GS3C0 product. Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.

For installation, always contact the dealer or an Authorized Service Center. There is risk of fire, electric shock, explosion, or injury.

Do not install the LG LRNU18GS3C0 product on a defective installation stand. It may cause injury, accident, or damage to the product.

Be sure the installation area does not deteriorate with age. If the base collapses, the LG LRNU18GS3C0 air conditioner could fall with it, causing property damage, product failure, and personal injury.

Do not let the LG LRNU18GS3C0 air conditioner run for a long time when the humidity is very high and a door or a window is left open. Moisture may condense and wet or damage furniture.

Take care to ensure that the power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock.

Do not place anything on the power cable. There is risk of fire or electric shock.

Do not plug or unplug the power supply plug during operation. There is risk of fire or electric shock.

Do not touch or operate the LG LRNU18GS3C0 product with wet hands. There is risk of fire or electrical shock.

Do not place a heater or other appliances near the power cable. There is risk of fire and electric shock.

Do not allow water to run into electric parts. It may cause risk of fire, failure of the product, or electric shock.

Do not store or use flammable gas or combustibles near the product. There is risk of fire or failure of the product.

Do not use the LG LRNU18GS3C0 product in a tightly closed space for a long time. Oxygen deficiency could occur.

When flammable gas leaks, turn off the gas and open a window for ventilation before turning the LG LRNU18GS3C0 product on. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

If strange sounds, smell, or smoke comes from the LG LRNU18GS3C0 product, turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.

Stop operation and close the window in a storm or hurricane. If possible, remove the LG LRNU18GS3C0 product from the window before the hurricane arrives. There is risk of property damage, failure of the product, or electric shock.

Do not open the inlet grill of the LG LRNU18GS3C0 product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.

When the LG LRNU18GS3C0 product is soaked (flooded or submerged), contact an Authorized Service Center. There is risk of fire or electric shock.

Be cautious that water could not enter the LG LRNU18GS3C0 product. There is risk of fire, electric shock, or product damage.

Ventilate the LG LRNU18GS3C0 product from time to time when operating it together with a stove, etc. There is risk of fire or electric shock.

Turn the main power off when cleaning or maintaining the LG LRNU18GS3C0 product. There is risk of electric shock.

When the LG LRNU18GS3C0 product is not used for a long time, disconnect the power supply plug or turn off the breaker. There is risk of product damage or failure, or unintended operation.

Take care to ensure that nobody could step on or fall onto the outdoor unit. This could result in personal injury and product damage.

Always check for gas (refrigerant) leakage after installation or repair of the LG LRNU18GS3C0 product. Low refrigerant levels may cause failure of the product.

Install the drain hose to ensure that water is drained away properly. A bad connection may cause water leakage.

Keep the LG LRNU18GS3C0 level even when installing the product. This is to avoid vibration or water leakage.

Do not install the LG LRNU18GS3C0 product where the noise or hot air from the outdoor unit could damage the neighborhoods. It may cause a problem for your neighbors.

Use two or more people to lift and transport the LG LRNU18GS3C0 product. This helps to avoid personal injury.

Do not install the LG LRNU18GS3C0 product where it will be exposed to sea wind (salt spray) directly. It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

Do not expose the skin directly to cool air from the LG LRNU18GS3C0 for long periods of time (Don’t sit in the draft). This could harm your health.

Do not use the LG LRNU18GS3C0 product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system. There is risk of damage or loss of property.

Do not block the inlet or outlet of air flow of the LG LRNU18GS3C0. It may cause product failure.

Use a soft cloth to clean the LG LRNU18GS3C0. Do not use harsh detergents, solvents, etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.

Do not touch the metal parts of the LG LRNU18GS3C0 product when removing the air filter. They are very sharp! There is risk of personal injury.

Do not step on or put anything on the LG LRNU18GS3C0 outdoor units. There is risk of personal injury and failure of the product.

Always insert the filter securely. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency of the LG LRNU18GS3C0 air conditioner and could cause product malfunction or damage.

Do not insert hands or other objects through the air inlet or outlet while the LG LRNU18GS3C0 product is operated. There are sharp and moving parts that could cause personal injury.

Do not drink the water drained from the LG LRNU18GS3C0 product. It is not sanitary and could cause serious health issues.

Use a firm stool or ladder when cleaning or maintaining the LG LRNU18GS3C0 product. Be careful and avoid personal injury.

Replace all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or explosion.

Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire. They may burn or explode.

If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

Contact an installation specialist for installation.

Use a dedicated circuit for the LG LRNU18GS3C0.

Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for extended periods of time from the LG LRNU18GS3C0.

Due to the possibility of oxygen deficiency, ventilate the room when the LG LRNU18GS3C0 is used together with stoves or other heating devices.

Do not use the LG LRNU18GS3C0 air conditioner for non-specified special purposes (e.g. preserving precision devices, food, pets, plants, and art objects). Such usage could damage the items.

Do not touch the metal parts of the LG LRNU18GS3C0 unit when removing the filter. Injuries can occur when handling sharp metal edges.

Do not use water to clean inside the LG LRNU18GS3C0 air conditioner. Exposure to water can destroy the insulation, leading to possible electric shock.

When cleaning the LG LRNU18GS3C0 unit, first make sure that the power and breaker are turned off. The fan rotates at a very high speed during operation. There is a possibility of injury if the unit’s power is accidentally triggered on while cleaning inner parts of the unit.

The On/Off lamp lights up during the system operation, error code, and auto restart setting of the LG LRNU18GS3C0.

The Sleep mode lamp lights up during sleep mode auto operation of the LG LRNU18GS3C0.

The Timer lamp lights up during timer operation or sleep mode auto operation of the LG LRNU18GS3C0.

The Defrost mode lamp lights up during defrost mode or hot start operation (Heat pump model only) of the LG LRNU18GS3C0.

The Plasma lamp illustrates its dynamic mode by using a multiple lighting system on the LG LRNU18GS3C0.

The Power Display indicates the setting temperature and operation mode (Cooling, heating, auto operation, dehumidification mode) of the LG LRNU18GS3C0.

Hot start operation stops the indoor fan in heating operation for minutes to prevent cold air from blowing out from the LG LRNU18GS3C0 unit.

In defrost mode, the LG LRNU18GS3C0 unit stops heating operation for a few minutes to remove the formation of ice on the heat exchanger coils to maintain efficiency.

The Operation indication screen displays the current operational status of the LG LRNU18GS3C0.

The 2ndF button is used to access secondary functions on the wired remote controller for the LG LRNU18GS3C0.

This button is used to set or cancel the timer for program, week, or holiday settings on the wired remote controller for the LG LRNU18GS3C0.

This button is used to set hours/minutes, confirm settings, clear settings, or control the ventilator function on the wired remote controller for the LG LRNU18GS3C0.

The Set temperature button is used to adjust the desired temperature for the LG LRNU18GS3C0.

The ON/OFF button is used to turn the LG LRNU18GS3C0 on or off.

The Fan operation button controls the fan operation of the LG LRNU18GS3C0.

The Operation mode selection button is used to select the operating mode (e.g., cooling, heating) for the LG LRNU18GS3C0.

The Fan speed button adjusts the fan speed of the LG LRNU18GS3C0.

The Horizontal/Vertical air flow direction button (optional) adjusts the direction of the airflow from the LG LRNU18GS3C0.

The Room temperature display shows the current room temperature detected by the wired remote controller for the LG LRNU18GS3C0.

The Plasma button activates or deactivates the Plasma function on the wired remote controller for the LG LRNU18GS3C0.

The Time reset button is used to reset the time on the wired remote controller for the LG LRNU18GS3C0.

The Operation lamp indicates the operational status of the LG LRNU18GS3C0.

Operation starts when this button is pressed on the wireless remote controller for the LG LRNU18GS3C0.

This button is used to select the operation mode of the LG LRNU18GS3C0.

These buttons are used to select the room temperature for the LG LRNU18GS3C0.

This selector is used to select the fan speed in four steps: low, medium, high, and Chaos, for the LG LRNU18GS3C0.

The Jet Cool button operates speed cooling/heating at super high fan speed for the LG LRNU18GS3C0.

This button is used to stop or start louver movement and set the desired up/down airflow direction for the LG LRNU18GS3C0.

These buttons are used to set the time of starting and stopping operation of the LG LRNU18GS3C0.

This button is used to adjust the time on the wireless remote controller for the LG LRNU18GS3C0.

This button is used to set the timer when the desired time is obtained and to cancel the Timer operation for the LG LRNU18GS3C0.

This button is used to set Sleep Mode Auto operation for the LG LRNU18GS3C0.

This button is used to circulate the room air without cooling or heating with the LG LRNU18GS3C0.

This button is used to set the desired horizontal airflow direction for the LG LRNU18GS3C0.

This button is used to start or stop the plasma-purification function of the LG LRNU18GS3C0.

This button is used to set the desired horizontal airflow direction for the LG LRNU18GS3C0.

The Reset Button is used to initialize the wireless remote controller for the LG LRNU18GS3C0.

The 2nd F Button is used prior to using modes printed in blue at the bottom of buttons on the wireless remote controller for the LG LRNU18GS3C0.

This button is used to set Auto Clean mode for the LG LRNU18GS3C0.

Aim the wireless remote controller at the signal receptor on the indoor unit so as to operate the LG LRNU18GS3C0.

The remote control signal for the LG LRNU18GS3C0 can be received at a distance of up to about 7m.

Be sure that there are no obstructions between the LG LRNU18GS3C0 remote controller and the signal receptor.

Do not drop or throw the LG LRNU18GS3C0 remote controller.

Do not place the LG LRNU18GS3C0 remote controller in a location exposed to direct sunlight, or near the heating unit, or any other heat source.

Block a strong light over the signal receptor with a curtain or etc. so as to prevent abnormal operation (ex: electronic quick start, ELBA, inverter type fluorescent lamp) of the LG LRNU18GS3C0.

Before performing any maintenance, turn off the main power to the LG LRNU18GS3C0 system.

Never use any of the followings:

• Water hotter than 40°C. Could cause deformation and/or discoloration.
• Volatile substances. Could damage the surfaces of the LG LRNU18GS3C0 air conditioner.

The air filters behind the front panel/grill of the LG LRNU18GS3C0 should be checked and cleaned once every 2 weeks or more often if necessary.

Clean the filters with a vacuum cleaner or warm soapy water. If dirt is not easily removed, wash with a solution of detergent in lukewarm water. Dry well in shade after washing and reinstall the filters back in place in your LG LRNU18GS3C0.

The plasma filters behind the air filter of the LG LRNU18GS3C0 should be checked and cleaned once every 3 months or more often if necessary.

Clean the plasma filters with a vacuum cleaner. If it is dirty, wash it with water and dry well in shade, then install back in place in your LG LRNU18GS3C0.

Remove the deodorizer filters behind the air filter and expose them in direct sunlight for 2 hours. Then insert these filters into their original position in your LG LRNU18GS3C0.

Open the upside of the panel and lift it up until the hooks of the panel come off. Remove the air filters. Then pull out the plasma filter. After cleaning and drying well, reinstall the filters in their original position.

Open the front panel. Then pull the filter tab slightly forward to remove the air filter. After removing the air filter, remove the plasma and deodorizer filter by slightly pulling forward.

Do not touch the plasma filter of the LG LRNU18GS3C0 within 10 seconds after opening the inlet grille, as it may cause an electric shock.

1. Operate the LG LRNU18GS3C0 air conditioner at the following settings for 2 to 3 hours: Type of operation: Fan operation mode. This will dry out the internal mechanisms.

2. Turn off the breaker.

Turn off the breaker when the LG LRNU18GS3C0 air conditioner is not going to be used for a long time. Dirt may collect and may cause a fire.

1. Clean the air filter and install it in the indoor unit.

2. Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.

3. Check that the ground wire is connected correctly. It may be connected to the indoor unit side.

If the air filters of the LG LRNU18GS3C0 become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to operate the air conditioner will be wasted.

Do not overcool the room with the LG LRNU18GS3C0. This is not good for your health and wastes electricity.

Keep blinds or curtains closed. Do not let direct sunshine enter the room when the LG LRNU18GS3C0 air conditioner is in operation.

Adjust the vertical and horizontal airflow direction of the LG LRNU18GS3C0 to ensure a uniform temperature in the room.

Make sure that the doors and windows are shut tight. Avoid opening doors and windows as much as possible to keep the cool air in the room when using the LG LRNU18GS3C0.

Clean the air filter regularly. Blockages in the air filter reduce the airflow and lower cooling and dehumidifying effects. Clean at least once every two weeks.

Ventilate the room occasionally. Since windows are kept closed, it is a good idea to open them and ventilate the room now and then when using the LG LRNU18GS3C0.

• You may have made a mistake in timer operation.
• The fuse may have blown or the circuit breaker may have been tripped.

Check that this is not a damp smell exuded by the walls, carpet, furniture, or cloth items in the room, which can be circulated by the LG LRNU18GS3C0.

Condensation occurs when the airflow from the LG LRNU18GS3C0 air conditioner cools the warm room air.

• This is the protector of the mechanism.
• Wait about three minutes and operation will begin.

• The air filter may be dirty. Refer to air filter cleaning instructions.
• The room may have been very hot when the LG LRNU18GS3C0 air conditioner was first turned on. Allow time for it to cool down.
• The temperature may have been set incorrectly.
• The indoor unit’s air inlet or outlet vents may be obstructed.

This is the sound of freon flowing inside the LG LRNU18GS3C0 air conditioner unit.

This is the sound of the dehumidifying water being processed inside the LG LRNU18GS3C0 air conditioning unit.

This sound is generated by the expansion/constriction of the front panel, etc. due to changes in temperature of the LG LRNU18GS3C0.

After cleaning the filter, press the Timer button and the button of the wired remote controller at the same time for 3 seconds on the LG LRNU18GS3C0.

• The batteries may be depleted.
• The batteries may be inserted in the opposite (+) and (-) directions.