LG LRNU24GS3B0 (01) PDF Document

Reading this Owner’s Manual carefully and thoroughly before installing and operating your LG LRNU24GS3B0 can provide many helpful hints on how to use and maintain it properly. A little preventive care can save you a great deal of time and money over the life of your air conditioner. You will also find many answers to common problems in the troubleshooting tips, which may prevent you from needing to call for service.

To prevent injury to the user or other people and property damage, the following instructions must be followed:

• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit. There is a 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 a risk of fire or electric shock.

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

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

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

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

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

For installation of the LG LRNU24GS3B0, always contact the dealer or an Authorized Service Center. There is a risk of fire, electric shock, explosion, or injury.

• Do not install the 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 air conditioner could fall with it, causing property damage, product failure, and personal injury.

• Always check for gas (refrigerant) leakage after installation or repair of the 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 LRNU24GS3B0 level even when installing the product. This is to avoid vibration or water leakage.

• Do not install the 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 product to avoid personal injury.

• Do not install the 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 let the LG LRNU24GS3B0 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 a risk of fire or electric shock.

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

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

• Do not touch (operate) the product with wet hands. There is a risk of fire or electrical shock.

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

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

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

• Do not use the 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 product on. Do not use the telephone or turn switches on or off, as there is a risk of explosion or fire.

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

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

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

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

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

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

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

• Do not use the 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 a risk of damage or loss of property.

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

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

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

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

When the LG LRNU24GS3B0 is not going to be used for a long time, operate the air conditioner at the following settings for 2 to 3 hours:

• Type of operation: Fan operation mode. This will dry out the internal mechanisms.

After this, turn off the breaker. Turning off the breaker is important because dirt may collect and may cause a fire.

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

When the LG LRNU24GS3B0 is to be used again:

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.

• Do not overcool the room. 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 air conditioner is in operation.

• Keep the room temperature uniform. Adjust the vertical and horizontal airflow direction 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.

• 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.

The air filters behind the front panel/grill should be checked and cleaned once every 2 weeks or more often if necessary. To remove the filters, open the front panel of your LG LRNU24GS3B0. For Type 1 models, open the upside of the panel and lift it up until the hooks come off, then remove the air filters. For Type 2 models, open the front panel, then pull the filter tab slightly forward to remove the air filter.

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 the filters well in the shade after washing and reinstall them back in place.

It is important to always insert the filter securely. A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

The plasma filters behind the air filter should be checked and cleaned once every 3 months or more often if necessary. To remove the filters, first remove the air filters, then pull out the plasma filter. Clean the filters with a vacuum cleaner. If it is dirty, wash it with water and dry it well in the shade, then install it back in place.

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

Remove the deodorizer filters behind the air filter and expose them to direct sunlight for 2 hours. After this, insert these filters into their original position.

If the filter sign lamp (LED) is ON, clean the filter. Then, press the Timer button and the ‘△’ button of the wired remote controller at the same time for 3 seconds.

If your LG LRNU24GS3B0 does not operate, check the following:

• Have you made a mistake in timer operation?

• Has the fuse blown or has the circuit breaker been tripped?

Check that this is not a damp smell exuded by the walls, carpet, furniture, or cloth items in the room. This could be the source of the peculiar odor, not the LG LRNU24GS3B0 itself.

Condensation occurs when the airflow from the air conditioner cools the warm room air. This is a normal phenomenon and not necessarily a leak from the LG LRNU24GS3B0 unit itself.

This is the protector of the mechanism. Wait about three minutes, and operation of your LG LRNU24GS3B0 will begin.

If your LG LRNU24GS3B0 does not cool or heat effectively, check the following:

• Is the air filter dirty? Refer to the air filter cleaning instructions.

• The room may have been very hot when the room air conditioner was first turned on. Allow time for it to cool down.

• Has the temperature been set incorrectly?

• Are the indoor unit’s air inlet or outlet vents obstructed?

Noises from your LG LRNU24GS3B0 operation can be due to:

• A noise that sounds like water flowing: This is the sound of freon flowing inside the air conditioner unit.

• A noise that sounds like compressed air releasing into the atmosphere: This is the sound of the dehumidifying water being processed inside the air conditioning unit.

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

If the remote control display is faint or shows no display, check the following:

• Are the batteries depleted?

• Are the batteries inserted in the opposite (+) and (-) directions?

You should 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. Do not recharge or disassemble the batteries, and do not dispose of them in a fire, as they may burn or explode. If 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, as the chemicals could cause burns or other health hazards.

“Hot start operation” stops the indoor fan in heating operation for minutes to prevent cold air from blowing out from the LG LRNU24GS3B0 unit.

In “Defrost mode”, the LG LRNU24GS3B0 unit stops heating operation for a few minutes to remove the formation of ice on the heat exchanger coils to maintain efficiency.

The Plasma function illustrates its dynamic mode by using a multiple lighting system.

The Power Display indicates the setting temperature and operation mode (Cooling, heating, auto operation, dehumidification mode) of the LG LRNU24GS3B0.