LMAN186HVT - Air Conditioning LG - Free user manual and instructions

USER MANUAL LMAN186HVT LG

AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. www.lg.com

Write the model and serial numbers here:Model #Serial #You can find them on a label on the side of each unit.Dealer's NameDate Purchased■ Staple your receipt to this page in the event you needit to prove date of purchase or for warranty issues.

Inside you will find many helpful hints on how to useand maintain your air conditioner properly. Just a littlepreventive care on your part can save you a great dealof time and money over the life of your air conditioner.You'll find many answers to common problems in thechart of troubleshooting tips. If you review our chart ofTroubleshooting Tips first, you may not need to callfor service at all. PRECAUTION

• Contact the authorized service technician forrepair or maintenance of this unit.• Contact the installer for installation of this unit.• The air conditioner is not intended for use byyoung children or invalids without supervision.• Young children should be supervised to ensurethat they do not play with the air conditioner.• When the power cord is to be replaced,replacement work shall be performed byauthorized personnel only using only genuinereplacement parts. A. Safety Precautions ..........................................3 B. Electrical Safety ...............................................6 Temporary Use of an Adapter............................6 Symbols used in this Manual .............................6 C. Product Introduction .......................................7 Indoor Units........................................................7 Outdoor Unit.......................................................7 D. Operating Instructions ....................................8 How to insert the Batteries .................................8 Wireless Remote Controller Maintenance..........8 Operating Method ..............................................8 Wireless Remote Controller ...............................9 Operation Mode ...............................................10 Healthy Dehumidification Operation.................11 Air Circulation Operation ..................................11 Auto Operation .................................................11 PLASMA Purification Operation (Optional) ......11 Jet Cool/Heat Operation...................................12 Energy-Saving Cooling Mode ..........................12 Display Luminosity ...........................................12 Sleep Mode Operation (Optional) ....................12 Auto Clean(Optional)........................................13 Setting the Current Time ..................................13 Timer Setting....................................................13 To cancel the Timer Setting .............................13 Forced operation ..............................................14 Auto Restart Function ......................................14 Horizontal Vane Control ...................................15 Vertical Louver Control ....................................15 E. Maintenance and Service ..............................16 Indoor Unit........................................................16 Outdoor Unit.....................................................17 Operation Tips!.................................................17 Self-Diagnosis Function ...................................17 Troubleshooting Tips! Save time and money!..18 Call the service immediately in the following situations ..........................................................18Owner's Manual 3 Safety Precautions ENGLISH Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. ■ Meanings of symbols used in this manual are as shown below. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage. Be sure not to do. Be sure to follow the instruction. Always use a power plug and socket with a ground terminal.

• There is a risk of electric shock. Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse.

• There is risk of fire or electric shock . Do not use a multi consent. Always use this appliance on a dedicated cicuit and breaker.

• Otherwise it can cause electric shock or fire. For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product by yourself.

• There is risk of fire or electric shock. Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire.

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

• There is risk of fire or electric shock due to dust , water etc. Use the correctly rated breaker or fuse.

• There is risk of fire or electric shock. Do not modify or extend the power cable. If the power cable or cord has scrathes or skin peeled off or deteriorated then it must be replaced.

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

• There is risk of fire, electric shock, explosion, or injury. Do not install the product on a defective installation stand. Be sure that the installation area does not deteriorate with age.

• It may cause product to fall. Never install the outdoor unit on a moving base or a place from where it can fall down.

• The falling outdoor unit can cause damage or injury or even death of a person. When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center for repair before using it again.

• There is risk of fire or eletric shock. In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge the capacitor completely before conducting the repair work.

• An charged capacitor can cause electrical shock. When installing the unit, use the installation kit provided with the product.

• Otherwise the unit may fall and cause severe injury. Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the equipment.

The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.4 Multi Air Conditioner Safety Precautions Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling the cable from the connection terminals.

• Improper or loose connections can cause heat generation or fire. Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after installation or svc and then tear away and thraw away the plastic packaging bags.

• Children may play with them and cause injury. Make sure to check that the power cable plug is not dirty, loose or broken and then only insert the plug completely.

• Dirty, loose or broken power plug can cause electric shock or fire. Be sure to check the refrigerant to the used. Please read the label on the product.

• Incorrect refrigerant used can prevent the normal operation of the unit. Don't use a power cord, a plug or a loose socket which is damaged.

• Otherwise it may cause a fire or electrical shock. Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking out

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

• There is risk of fire and electric shock. Do not allow water to run into electric parts. Install the unit away from water sources.

• There is risk of fire, failure of the product, or electric shock. Do not store or use or even allow flammable gas or combustibles near the product.

• There is risk of fire. Do not use the product in a tightly closed space for a long time. Perform ventilation regularly.

• Oxygen deficiency could occur and hence harm your health. Do not open the front grille of the 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. If strange sounds, smell or smoke comes from product.Immediately turn the breaker off or disconnect the power supply cable.

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

• Oxygen deficiency can occur and hence harm your health. Turn the main power off and unplug the unit when cleaning or repairing the product.

• There is risk of electric shock. When the product is not to be 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 especially kids could step on or fall onto the outdoor unit.

• This could result in personal injury and product damage. Take care to ensure that 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 to turn the unit ON/OFF .

• There is risk of fire or electric shock. When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.

• Do not use the telephone or turn switches on or off. There is risk of explosion or fire. Two or more people must lift and transport the product.

• 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. Install the drain hose to ensure that the condensed water is drained away properly.

• A bad connection may cause water leakage. Keep level even when installing the product.

• To avoid vibration or noise. Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods.

• It may cause a problem for your neighbors and hence dispute. Always check for gas (refrigerant) leakage after installation or repair of product.

• Low refrigerant levels may cause failure of product.Owner's Manual 5 Safety Precautions ENGLISH 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 risk of damage or loss of property. Do not block the inlet or outlet of air flow.

• It may cause product failure. Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water 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 product when removing the air filter.

• There is risk of personal injury. Do not step on or put anyting on the product. (outdoor units)

• There is risk of personal injury and failure of product. Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if necessary.

• A dirty filter reduces the efficiency. Do not insert hands or other objects through the air inlet or outlet while the product is operating.

• There are sharp and moving parts that could cause personal injury. Be cautious when unpacking and installing the product.

• Sharp edges could cause injury. If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas.

• The refrigernat gas can cause frostbite (cold burn) Do not tilt the unit when removing or uninstalling it.

• The condensed water inside can spill . Do not mix air or gas other than the specified refrigerant used in the system .

• If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury. If the refrigerant gas leaks during the installation, ventilate the area immediately.

• Otherwise it can be harmfull for your health. Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards. Replace the 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 product failure. Do not recharge or disassemble the batteries. Do not dispose off 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. If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked.

• The chemicals in batteries could cause burns or other health hazards. Do not let the 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. Do not expose your skin or kids or plants to the cool or hot air draft.

• This could harm to your health. Do not drink the water drained from the product.

• It is not sanitary and could cause serious health issues. Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height.

• Be careful and avoid personal injury.6 Multi Air Conditioner Electrical Safety
• This appliance must be properly grounded.To minimize the risk of electric shock, you must alway plug into a grounded oulet.• Do not cut or remove the grounding prong from the power plug. • Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the applianceunless the cover screw is metal and not insulated, and the wall receptacle is grounded through thehouse wiring.• If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle andcircuit checked by a qualified electrician.We strongly discourage the use of an adapter due to potential safety hazards. For temporary connections,use only a genuine adapter, available from most local hardware stores. Ensure that the large slot in theadapter is aligned with the large slot in the receptacle for a proper polarity connection.To disconnect the power cord from the adapter, use one hand on each to avoid damaging the groundterminal. Avoid frequently unplugging the power cord as this can lead to eventual ground terminal damage.• Never use the appliance with a broken adapter. This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that may cause harm to the air conditioner. This symbol indicates special notes. NOTE Symbols used in this Manual Temporary Use of an Adapter Electrical SafetyOwner's Manual 7 Here is a brief introduction of the indoor and outdoor units. Please see the information specific to yourindoor unit type. ❈ The figure can be changed according to model. Product Introduction Air inlet Front grille On/ Off button Signal receiver Operation lamp [Standard Libero Type] Operation lampSignal ReceiverON/OFF buttonAir inletPlasma filterAir filterFront grillePlasma filterAir filterVertical louverAir outletHorizontal vane Horizontal vane Horizontal vaneOperation lampSignal ReceiverON/OFF buttonAir inletAir filterFront grilleVertical louverAir outletHorizontal vane Horizontal vane Horizontal vane [Artcool Libero Type] Air outlet Vertical LouverHorizontal Vane ENGLISH Air outlet ventsBase plateConnection pipeDrain hoseConnecting wireControl coverAir intake vents Outdoor Unit Indoor Units Product Introduction1. Remove the battery cover by pulling it according to the arrow direction.

2. Insert new batteries making sure that the (+) and (-) of battery are

installed correctly.(Battery Size = AAA (1.5 volt))

3. Reattach the cover by sliding it back into position.

1. Always use/replace both batteries of same type.

2. If the system is not to be used for a long time, remove the

batteries to save their working life.

3. If the display screen of remote controller starts, fading replace

both of the batteries. NOTE

1. Choose a suitable place where its safe & easy

2. Fix the holder to wall etc with the supplied

1. Remote controller should never be exposed to

2. Signal transmitter & receiver should always be

clean for proper communication. Use a soft cloth to clean them.

3. In case some other appliances also get

operated with remote control, change their position or consult your serviceman. NOTE 8 Multi Air Conditioner Operating Instructions

1. The signal receiver is inside the unit.

Aim the remote controller towards the unit to operate it. There should not be any blockage in between. Operating Method Wireless Remote Controller Maintenance How to insert the Batteries Operating InstructionsOwner's Manual 9ENGLISHOperating Instructions❈ Some functions may not be supported, depending on the model. NOTE Display screen Control panel ControlpanelDisplayscreenDescription

Plasma button*: Purifies the air byremoving particles that enter theindoor unit.

Temperature adjustment buttons:Adjusts the room temperature whencooling and heating.

On/Off button: Turns the poweron/off.

Operation mode selection button*:Selects the operation mode. Cooling operation (A) / Autooperation or auto changeover (C) /Dehumidifying operation (D) / Heatingoperation (B) / Air circulation (E)

Jet cooling/heating button*: Warmsup or cools down the indoortemperature within a short period oftime.

Air flow direction button: Adjuststhe air flow direction vertically orhorizontally.

Temperature display button: Displaysthe room temperature. Also changesunit from °C to °F if pressed for 5seconds.

Timer button: Sets the current timeand the start / end time.

Navigation and functions button*:Adjusts the time and sets the specialfunctions.J: Auto clean / G: Operates energysaving cooling / LIGHT : Adjusts thebrightness of the indoor unit display

Reset button: Resets the airconditioner settings. Cooling ModeAuto OperationDehumidification modeHeating ModeFan Mode Cooling Model( ), Heat Pump Model( )Operation Mode Wireless Remote Controller10 Multi Air Conditioner To lower the temperature To raise the temperature Natural Wind Step1(Low) Step2(Medium-Low) Step3(Medium) Step4(Medium-High) Step5(High) Cooling Dehumidifying Operation Heating Auto Operation Air Circulation Press the ON/OFF BUTTON to turn the unit on. The unit will respond with a beep. Open the door of the remote controller and press the operation mode button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow. For cooling or heating operation set the desired indoor temperature by pressing the ROOM TEMPERATURE SETTING BUTTONS. For cooling the temperature can be set within 18°C~30°C(64°F~86°F) and for heating the temperature range is 16°C~30°C(60°F~86°F). Set the fan speed with the remote controller. You can select the fan speed by pressing the INDOOR FAN SPEED SELECTOR BUTTON. Each time the button is pressed, the fan speed mode is shifted.

Operating Instructions Operation Mode Natural wind

For fresher feeling, press the INDOOR FAN SPEED SELECTION BUTTON and set to Natural wind mode. In this mode, the wind blows like a natural breeze by automatically changing fan speed.Owner's Manual 11 ENGLISH Plasma filter is a technology developed by LG to get rid of microscopic contaminants in the intake air by generating a plasma of high charge electrons. This plasma kills and destroys the contaminants completely to provide clean and hygienic air. Plasma purification can be started by pressing the PLASMA BUTTON on the remote controller.

is displayed on the display screen. Repressing it will deactivate the operation. This feature can be used in any operation mode and any fan speed can be used while plasma filter is functioning. NOTE Operating Instructions PLASMA Purification Operation (Optional) During Healthy Dehumidification Operation ❏ If you select the dehumidification mode on the OPERATION MODE SELECTION BUTTON, the product starts to run the dehumidification function. It automatically sets the room temperature and airflow volume to the best condition for dehumidification, based on the sensed current room temperature. In this case, however, the setting temperature is not displayed on the remote controller and you are not able to control the room temperature either. ❏ During the healthy dehumidification function, the airflow volume is automatically set according to the optimization algorithm responding to the current room temperature status, so that the room condition is kept healthy and comfortable even in the very humid season. In this operation mode, the system is automatically operated by the electronic controls. - You can set the desired temperature between 18°C(64°F) and 30°C(86°F) for Auto Operation mode. This function properly operates when you use the remote controller matching each model. NOTE Auto Operation Air Circulation Operation Healthy Dehumidification Operation This operation circulates the air without cooling or heating. It can be activated by pressing the OPERATION MODE SELECTION BUTTON. Once the air circulation is activated you can select the air speed by pressing the INDOOR FAN SPEED SELECTOR BUTTON. : During this opertion, 'Cooling' lamp lights up. (Standard Libero Type) NOTE12 Multi Air Conditioner Operating Instructions Jet cool function can be used to cool the room quickly in hot summer. When this function is turned on, the air conditioner runs in cooling operation mode with super high fan speed and 18°C(64°F) setting temperature for 30 minutes for fast and effective cooling. Similarly, jet heat function (available only in some models) warms up the room quickly by operating at super high fan speed and 30°C(86°F) setting temperature for 30 minutes. You can activate this operation by pressing the JET COOL BUTTON. To change from jet cool mode to high fan speed cooling mode, press the JET COOL BUTTON or INIDOOR FAN SPEED SELECTOR BUTTON or the ROOM TERPERATURE SETTING BUTTON again.

• Jet Cool/Heat operation cannot be activated during Air Circulation operation and auto operation. NOTE Energy-saving cooling mode can save energy in cooling operation, because it can operate efficiently by setting body-adaptation time according to the change of time and temperature and adjusting desired temperature automatically.

1. Press the ON/OFF BUTTON to start the unit.

2. Open the cover of the remote controller.

Select cooling operation.

COOLING MODE BUTTON again and unit will operate in previous mode(Cooling mode). The Display Luminosity can be adjusted by using the remote control. Press the LCD/LED LUMINOSITY button. Display will be dark. Press the button again to set bright display. Press the SLEEP MODE AUTO BUTTON to set the time when you want the unit to stop automatically. The timer is programmed in one-hour increments by pressing the SLEEP MODE AUTO BUTTON 1 to 7 times. The sleep mode is available for 1 to 7 hours.

• The sleep mode will operate indoor fan at super low speed in cooling mode and at low speed in heating mode for pleasant sleep. NOTE Sleep Mode Operation (Optional) Display Luminosity Energy-Saving Cooling Mode Jet Cool/Heat OperationOwner's Manual 13 ENGLISH Operating Instructions ❏ During auto clean function, moistures left in indoor units after cooling operation or healthy dehumidification operation can be removed. This function operate when the unit is turned off.

• is displayed on the display screen. If the Auto Clean function is reserved, whenever the unit is turned off, the indoor fan is still running for about 30 minutes internally without cooling or dehumidification operation. Also the louver is closed. This dries up any remains of moisture & cleans the unit internally.

1. Press the Set/Clear button for 3seconds.

2. Press Time Setting buttons until the desired time is set.

2. Press Time Setting buttons until the desired time is set.

Check the indicator for A.M. and P.M. To cancel the Timer Setting NOTE

• If you wish to cancel all timer setting, press the SET/CLEAR button.

• In order to cancel the timer settings individually, press the Timer button to select Reserved 'On' or Reserved 'Off'. And then press the Set/Clear button aiming the remote controller at the signal receiver. (the timer lamp on the display will go off) Timer Setting Setting the Current Time Auto Clean(Optional)14 Multi Air Conditioner Operating Instructions Forced operation is used when the remote controller can't be used. The operation will be started if the ON/OFF button is pressed. If you want to stop the operation, re-press the button. ON/OFF button Test operation During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room temperature and resets in 18 minutes. During test operation, if remote controller signal is received, the unit operates as remote controller sets. If you want to use this operation, Press and hold the ON/OFF button for 3-5 seconds, then the buzzer sound 1 'beep'. If you want to stop the operation, re-press the button. This feature is enabled by factory default setting, but you can disable it by pressing the ON/OFF button for 6 seconds. The unit will beep twice and the lamp will blink 8 times. To enable it, press the button again for 6 seconds. The unit will beep twice and the blue lamp will blink 4 times. NOTE This function is useful in the situation of power failure. When power regains after a failure this feature restore the previous operating condition and the air conditioner will run in the same settings. Auto Restart Function Heat pump Model Room Temp. ≥ 24°C(75.2°F) 21°C(69.8°F) ≤ Room Temp. < 24°C(75.2°F) Room Temp. < 21°C(69.8°F) Operating mode Cooling Healthy Dehumidification Heating Indoor FAN Speed High High High Setting Temperature 22°C(71.6°F) 23°C(73.4°F) 24°C(75.2°F) Forced operationOwner's Manual 15 ENGLISH Operating Instructions The Horizontal Vane can be adjusted by using the remote controller.1. Press the ON/OFF BUTTON to start the unit.2. Press the vertical airflow direction button. Each time the button is pressed, the air-flow direction is changed in the direction of the arrow. Press the Vertical Airflow Direction button once more during Auto Swing at the direction of airflow you want. STOP 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step Auto Swing The Vertical Louvers can be adjusted by using the remote controller.1. Press the ON/OFF BUTTON to start the unit.2. Press the horizontal airflow direction button. Each time the button is pressed, the airflow direction is changed in the direction of the arrow. Press the Horizontal Airflow Direction button once more during Full Auto Swing at the direction of airflow you want. Vertical Louver Control 1 Step 2 Step 3 Step 4 Step 5 Step Left Auto Swing Right Auto Swing Full Auto Swing STOP

Manually moving the Horizontal Vane or Vertical Louvers by hand could damage the mechanism.When theunit is shut off, the the Horizontal Vane and Vertical Louvers will close the air outlet vent of the product.• Air Conditioner memorizes the last operated angle.So there is possibility of difference in the angle of Remote Controller and the unit after reoperation.In that case, angle can be adjusted by pressing the Vane Control Button on the Remote Controller.• The vertical louvers may automatically move for a specific temperature zone at the cooling mode.ex) 1 Step → 2 Step, 5 Step → 4 Step NOTE Horizontal Vane Control16 Multi Air Conditioner Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and unplug the power cord. Clean the unit with a soft dry cloth. Do not use bleach or abrasives. Never use any of these

• Water hotter than 40°C(104°F). It may cause deformation and discoloration.

• Volatile substances. They may damage the surface of the air conditioner. Maintenance and Service

Indoor Unit Cleaning the air filter Clean the air filter once every 2 weeks or more if necessary.

1. Turn off the power and unplug the power

2. Open the front cover.

- Lift up both sides of the cover slightly.

3. Hold the knob of the air filter, lift it up slightly

and remove it from the unit.

4. Clean the filter with a vacuum cleaner or

with warm water. - If dirt is difficult to remove, wash the filter in lukewarm water with detergent.

5. Dry the filter in the shade.

Cleaning the plasma filter

1. Turn off the power and unplug the power

2. Open the front cover and remove the air

filter (see “Cleaning air filter”).

3. Remove the plasma filter in 10 seconds.

4. Use a vacuum cleaner to remove any dirt.

- If dirt is difficult to remove, wash the filter with lukewarm water.

5. Dry the filter in the shade.

• The location of the filters may differ, depending on the model.

• The plasma filter may not be included in some models. NOTE Maintenance and ServiceOwner's Manual 17 ENGLISH Maintenance and Service The heat exchanger coils and panel vents of the outdoor unit should be checked regularly. If clogged with dirt or soot, the heat exchanger and panel vents may be professionally steam cleaned. Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs. NOTE Self-Diagnosis Function Error Display LED (once) 2 sec 2 sec 2 sec This unit has an inbuilt error diagnosis capability. Unit LED will blink in case if thermistor fails. Please contact your serviceman/dealer in such a situation Do not overcool the room. This is not good for the 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 thight. 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 ten. Use high fan speed for effective and fast cooling. The unit gives its rated cooling capacity when the fan speed is high. Operation Tips! Outdoor Unit18 Multi Air Conditioner Maintenance and Service The air conditioner may be operating abnormally when: Problem ■ The air conditioner is unplugged. ■ The fuse is blown/circuit breaker is tripped. ■ Power failure. ■ High or low voltage. ■ Airflow is restricted. ■ The air filter is dirty.

The room may have been hot. ■ Cold air is escaping.

Check the temperature settings. ■ There might be any heating source in the room. Air conditioner does not start Air conditioner does not cool as it should

• Make sure the air conditioner plug is pushed completely into the outlet.

• Check the house fuse/circuit breaker box and replace the fuse or reset the breaker.

• 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.

• If the voltage is unusually very high or low the circuit Breaker will trip.

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

• Clean the filter at least every 2 weeks. See the Maintenance and Service section.

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

• Check for open furnace floor registers and cold air returns.

• Make sure they are correct.

• Check and remove such source or turn it off while using the air conditioner. What To DoPossible Causes

1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and

turn the breaker off. Never try to repair by yourself or restart the system in such cases.

2. Main power cord is too hot or damaged.

3. Error code is generated by self diagnosis.

4. Water leaks from indoor unit even if the humidity is low.

5. Any switch, breaker (safety, earth) or fuse fails to work properly

1. Please call the installing contractor of your product, as warranty service will be provided by them.

2. If you have service issues that have not been addressed by the contractor, please call 1-888-865-3026.