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Room Air Conditioner

Maintenance and Service

Common Problems and Solutions

Before calling for service

If you have problems with your air conditioner, read the following information and try to solve
the problem. If you cannot find a solution, turn off the air conditioner and contact your dealer. 

Air conditioner does not operate

1. Ensure that the air conditioner is plugged into a proper outlet.
2. Check the fuse or circuit breaker.
3. Check whether the voltage is unusually high or low.

Air does not feel cold enough on the cooling setting

1. Ensure that the temperature settings are correct.
2. Check to see if the air filter is clogged with dust. If so, replace the filter.
3. Ensure that the air flow from the outside is not obstructed 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 up by the fan on rainy days

or in highly humid conditions. This feature is designed to help remove moisture in the air
and improve cooling efficiency.

•  You see water dripping from the rear of the unit. Water may be collected in the base pan in

highly humid conditions or on rainy days. This water overflows and drips from the rear of
the unit.

•  You hear the fan running while the compressor is silent. This is a normal operational

feature.

Summary of Contents for LG-BKE 7500 D, LG-BKE 7600 D,

Page 1: ...e retain this owner s manual for future reference after reading it thoroughly RoomAirConditioner OWNER S MANUAL Prior to installation this air conditioning unit must be submitted for approval by the utility service which provides electricity EN 6055 3 Norm Models LG BKE 7500 D LG BKE 7600 D LG BKE 7650 D LG BKE 7700 D LG BKE 7800 D ...

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: ...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 Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There i...

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: ...tioner This symbol indicates special notes NOTICE Features Symbols used in this Manual Air Intake Vents Air Outlet Vents Connecting Wires Piping Drain Hose Base Plate Front Panel Air Inlet Signal Receptor Air Filter Indoor Outdoor This appliance should be installed in accordance with national wiring regulations This guide acts as a guide to help to explain product features ...

Page 11: ... We strongly discourage the use of an adapter due to potential safety hazards For temporary connections use only a UL listed adapter available from most local hardware stores Ensure that the large slot in the adapter 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 ground termi...

Page 12: ...ting Instructions Signal Receptor Receives the signals from the remote control Signal receiving sound two short beeps or one long beep Hot Start operation Stops the indoor fan in Heating Operation to prevent cold air from blowing out from unit Operation Indication Lamps On Off Lights up during the system operation Sleep Mode Lights up during Sleep Mode Auto operation Without plasma model only Time...

Page 13: ...ooling mode 6 CHAOS SWING BUTTON 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 22 8 TIME SETTING BUTTONS Used to adjust the time See page 22 9 TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation See page 22 10 SL...

Page 14: ...he arrow 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 w...

Page 15: ...oom temperature If you want to change 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 switc...

Page 16: ... 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 changeo...

Page 17: ...r Fan 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 product starts to run the dehumidification function It automatically sets the room temp...

Page 18: ...hifted 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...

Page 19: ...is not available In order to return 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 mod...

Page 20: ... in four steps low medium high or CHAOS Each time the button is pressed the fan speed mode is shifted Air purifying operation NEO 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 steps low medium high or CHAOS Ea...

Page 21: ...oor of the remote controller and press the 2nd Function button to operate functions printed blue color under buttons Check the indication of 2nd function on the display of the remote controller 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 22: ...n 1 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...

Page 23: ...n 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 Horizontal Airflow Direction button and the louvers will swing left and ...

Page 24: ...n the Auto Clean mode with no more Cooling or Dehumidification operation It lasts for 30 minutes 5 If you press the AUTO CLEAN button again during the product operation Auto Clean function will be cancelled Operation procedures when the remote control can t be used The operation will be started if the ON OFF button is pressed If you want to stop operation re press the button Forced operation Heat ...

Page 25: ... setting mode Auto restart function has set enable as factory default But customer can set up by following this instruction To be disable function Press and hold the ON OFF button for 6 seconds then the buzzer sound 2 beep and the indicator lamp 1 blinks 4 times To be enable function Press and hold the ON OFF button for 6 seconds then the buzzer sound 2 beep and the indicator lamp 1 brights 4 time...

Page 26: ...al The NEO PLASMA filter behind the air filters should be checked and cleaned once in every 3 months or more often if necessary 1 After removing the air filters pull slightly forward to remove the NEO PLASMA filter 2 Clean NEO PLASMA filter with the vacuum cleaner If it is very dirty wash it with water 3 Note the cuts of electric discharge lines 4 Re install the NEO PLASMA filter to the original p...

Page 27: ...egularly 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 Replacement of purifying filter Optional Recomended use period About 2 years 1 Remove front panel and air filters 2 Remove air purifying filters 3 Insert new air purifying filte...

Page 28: ...e that the air flow from the outside is not obstructed 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 pingin...

Page 29: ...pletely 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 Make sure there are no curtains blinds or furniture blocking the front of the air conditioner Clean the filter at least ever...

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