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P/NO : 3828A20536F

www.lg.com

OWNER’S MANUAL

AIR CONDITIONER 

Please read this manual carefully before operating
your set and retain it for future reference.

MODELS: SU/SZ/S3 Chassis 

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Summary of Contents for LS-C126UMM1

Page 1: ...P NO 3828A20536F www lg com OWNER S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference MODELS SU SZ S3 Chassis ENGLISH FRANÇAIS ...

Page 2: ...bleshooting tips If you review our chart of Troubleshooting Tips first you may not need to call for service at all PRECAUTION Contact the authorized service technician for repair or maintenance of this unit Contact the installer for installation of this unit The air conditioner is not intended for use by young children or invalids without supervision Young children should be supervised to ensure t...

Page 3: ...s shown below Be sure not to do Be sure to follow the instruction Installation Do not use damaged power cords plugs or a loose socket There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center There is risk of fire or electric shock Always use the power plug and socket with the ground terminal There is risk of elect...

Page 4: ...lation 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 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 furnishings Take care to ensure that power cords could not be pulled out or dam...

Page 5: ...le gas or combustibles near the air conditioner There is risk of fire or failure of 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 turn the product on DO NOT use the telephone or turn switches on or off There is risk of explosion or fire Unplug the unit if stra...

Page 6: ... 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 For inner cleaning contact an Authorized Service Center or a dealer Do not use harsh detergent that causes corrosion or damage on the unit Harsh detergent may also cause failure of product fire or electronic shock Do not open the inlet...

Page 7: ...t room occupants Don t sit in the draft This could damage 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 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 so...

Page 8: ...ter reduces the efficiency of the air conditioner and could cause product malfunction or damage Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in There are sharp and moving parts that could cause personal injury Do not drink the water drained from the unit It is not sanitary and could cause serious health issues Disuse Use a firm stool or ...

Page 9: ...nce together with stoves or other heating devices 3 Do not use this air conditioner for non specified special purpose e g preserving precision devices food pets plants or art objects Such use may damage your properties 1 Do not touch the metal parts of the unit when removing the filter Injury can occur 2 Do not use water to clean inside the air conditioner Exposure to water can destroy the insulat...

Page 10: ...cial notes NOTICE Features Symbols used in this Manual Signal Receptor Front Panel Air Discharge Air Intake Vents Air Outlet Vents Power Cord Power button Connecting Wires Piping Drain Hose Base Plate NEO Plasma Filter Air Inlet Air Filter Indoor Outdoor WARNING This appliance should be installed in accordance with national wiring regulations This guide acts as a guide to help to explain product f...

Page 11: ...m the power plug WARNING Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal and not insulated and the wall receptacle is grounded through the house wiring WARNING If you have any doubt whether the air conditioner is properly grounded have the wall receptacle and circuit checked by a qualified electrician Preferred ...

Page 12: ...ty connection To disconnect the power cord from the adapter use one hand on each to avoid damaging the ground terminal Avoid frequently unplugging the power cord as this can lead to eventual ground terminal damage WARNING Never use the appliance with a broken adapter We strongly discourage the use of an extension cord due to potential safety hazards For temporary situations use only CSA certified ...

Page 13: ... aim the remote controller at the signal receptor Signal receptor Receives the signals from the remote controller Signal receiving sound two short beeps or one long beep Operation indicating lamps On Off Lights up during the system operation Sleep Mode Lights up during Sleep Mode Auto operation Timer Lights up during Timer operation Defrost Mode Lights up during Defrost Mode or Hot Start operation...

Page 14: ...TTON Used to stop or start louver movement and set the desired up down airflow direction 7 ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation See page 23 8 TIME SETTING BUTTONS Used to adjust the time See page 23 9 TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation See page 23 10 SLEEP MODE AUTO BUTTON Used to...

Page 15: ...rrow Close the door of the remote controller Set the temperature lower than the room temperature The temperature can be set within a range of 18 C 30 C at intervals of 1 C Set the fan speed again with the door of the remote controller still closed You can select the fan speed in four steps low medium high and CHAOS Each time the button is pressed the fan speed mode is shifted 1 2 3 4 Natural wind ...

Page 16: ...nge the set temperature press the Room Temperature Setting buttons The cooler or warmer you feel the more times up to two times you should press the button The set temperature will be changed automatically During Auto Operation You cannot control the indoor fan speed It has already been set by the Fuzzy rule If the system is not operating as desired manually switch to another mode The system will ...

Page 17: ...arrow 1 2 Close the door of the remote controller Set the temperature lower than the room temperature The temperature can be set within a range of 18 C 30 C at intervals of 1 C Set the fan speed again with the door of the remote controller still closed You can select the fan speed in four steps low medium high and CHAOS Each time the button is pressed the fan speed mode is shifted 3 4 During Auto ...

Page 18: ...n Speed Selector and set to CHAOS mode In this mode the wind blows like a natural breeze by automatically changing fan speed according to the CHAOS logic Healthy dehumidification operation During Healthy Dehumidification Operation If you select the dehumidification mode on the operation selection button the A C starts to run the dehumidification function It automatically sets the room temp and air...

Page 19: ...ed in the direction of the arrow Close the door of the remote controller Set the temperature higher than the room temperature The temperature can be set within a range of 16 C 30 C at intervals of 1 C Set the fan speed again with the door of the remote controller still closed You can select the fan speed in four steps low medium high and CHAOS Each time the button is pressed the fan speed mode is ...

Page 20: ...n to the normal cooling mode from the JET COOL mode just press the operation mode selection button airflow volume selection temp setting button or the JET COOL button again NOTICE Press the Start Stop button The unit will respond with a beep Press the Jet Cool button to operate the speed cooling mode and the unit will operate at super high fan speed on cooling mode for 30 minutes To cancel the Jet...

Page 21: ...losed You can select the fan speed in four steps low medium high or CHAOS Each time the button is pressed the fan speed mode is shifted Air purifying operation PLASMA can be with cooling Heating or any other operations NEO PLASMA Air Purifying Operation only If you press the only PLASMA button only PLASMA purification function operates Then fan speed is low You can select the fan speed in four ste...

Page 22: ...ote control and press the 2nd Function button to operate functions printed in blue unter buttons Check the indication of 2nd function on the display of the remote controller These buttons can set the timer as follows 2nd function disappears in a short time automatically or when the button is pressed again 1 2 3 2nd F operation For more details refer to functions next pages ...

Page 23: ... hour for a comfortable sleep NOTICE Setting the time 1 Time can be set only when you press the Reset button Having replacing the batteries you should press the reset buttons to reset the time Press the Start Stop button 2 Press 2nd F button and check if 2nd F icon is on 3 Press the Time Setting buttons until the desired time is set 4 Press the Timer SET button Check the indicator for A M and P M ...

Page 24: ...hen the unit is shut off the up down airflow direction louver will close the air outlet vent of the system NOTICE Horizontal Airflow Direction Control Optional The left right Horizontal Airflow can be adjusted by using the remote control Press the Start Stop button to start the unit Open the door on the remote control Press the Airflow Direction Start Stop button and the louvers will swing left an...

Page 25: ...n the Cool Start function operates and indoor Fan is started after 20 seconds 4 When you press Start Stop button to turn off the unit after the you have reserved Auto Clean function the air conditioner circulates the indoor air in the Auto Clean mode with no more Cooling or Dehumidification operation For Cooling only model it lasts for 30 minutes for Heat pump model for 16 minutes 5 If you press t...

Page 26: ... C 23 C 24 C Helpful information Fan speed and cooling capacity The cooling capacity indicated in the specification is the value when the fan speed is set to high and the capacity will be lower at low or medium fan speed High fan speed is recommended when you wish to cool the room quickly Test operation During the TEST OPERATION the unit operates in cooling mode at high speed fan regardless of roo...

Page 27: ...nt Panel 2 Put up the Front panel The hook of panel comes off 3 Come down the panel and then remove the air filter WARNING Don t touch the PLASMA Filter within 10 seconds after opening the inlet grille it may cause electric shock 4 Clean it wi a soft brush and the vacuum cleaner If it is very dirty wash it with water 5 Reinstall the air filter dried at the shade and then close the panel Never use ...

Page 28: ...at 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 NOTICE 1 Open the upside of Front panel 2 Put up the front panel The hook of panel comes off 3 Remove air filt...

Page 29: ...bstructed and that there is a clearance of over 20 between the back of the air conditioner and the wall or fence behind it 4 Close all doors and windows and check for any source of heat in the room Before calling for service please review the following list of common problems and solutions The air conditioner is operating normally when You hear a pinging noise This is caused by water being picked ...

Page 30: ...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 Make sure there are no curtains blinds or furniture blocking the front of the air conditioner Turn the knob to a higher number The highest setting provides maximum ...

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