LG | ICE18FB-N | LG HSNC186C4A1 Owner’s Manual

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Room Air Conditioner
Dear Owner
Thank you for installing LG air conditioner.
Your best choice guarantees you a great
performance and service to make your life
comfortable & pleasant.
• Please read this owner's manual carefully and thoroughly
before installing and operating your room air conditioner.
• Please retain this owner's manual for future reference after
reading it thoroughly.
P/No.: MFL61617405
Room Air Conditioner Owner’s Manual
A. Safety Precautions ..............................3
B. Electrical Safety...................................6
Temporary Use of an Adapter ...............6
Temporary Use of an Extension Cord ...6
Symbols used in this Manual.................6
C. Product Introduction...........................7
Indoor Units ...........................................7
Operation Indication Lamps ..................7
Outdoor Unit ..........................................7
D. Operating Instructions........................8
How to insert the Batteries ....................8
Wireless Remote Controller
Operating Method..................................8
Wireless Remote Controller...................9
Operation Mode...................................10
Healthy Dehumidification Operation....11
Auto Operation
(Cooling Only Model)...........................11
Auto Changeover Operation
(Heat Pump Model) .............................11
Jet Cool/Heat Operation......................12
NEO PLASMA Purification Operation
Auto Clean (Optional)..........................12
Display Luminosity (Optional)..............13
Forced operation .................................13
Sleep Mode .........................................14
Setting the Current Time .....................14
Timer Setting .......................................14
Vertical / Horizontal Airflow Direction
Control (Optional) ................................15
Air Circulation Mode ............................15
Auto Restart Function..........................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 ..............................18
2 Room Air Conditioner
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
Staple your receipt to this page in the event you need
it to prove date of purchase or for warranty issues.
Inside you will find many helpful hints on how to use
and maintain your air conditioner properly. Just a little
preventive care on your part can save you a great deal
of time and money over the life of your air conditioner.
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call
for service at all.
• 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
that they do not play with the air conditioner.
• When the power cord is to be replaced,
replacement work shall be performed by
authorized personnel only using only genuine
replacement parts.
Safety Precautions
Safety Precautions
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
■ Meanings of symbols used in this manual are as shown below.
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.
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.
Use the correctly rated breaker or fuse.
• There is risk of fire or electric shock.
Do not install the product on a defective
installation stand. Be sure that the
installation area does not deteriorate with
• It may cause product to fall.
Do not use a defective or underrated
circuit breaker. Use the correctly rated
breaker and fuse.
• 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.
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.
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.
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.
When installing the unit, use the
installation kit provided with the product.
• An charged capacitor can cause electrical
• Otherwise the unit may fall and cause severe
Do not use a multi consent. Always use
this appliance on a dedicated cicuit and
• Otherwise it can cause electric shock or fire.
Install the panel and the cover of control
box securely.
• There is risk of fire or electric shock due to
dust , water etc.
For installation, removal or reinstall ,
always contact the dealer or an
Authorized Service Center.
• There is risk of fire, electric shock, explosion,
or injury.
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.
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
Owner's Manual 3
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.
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.
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.
Make sure to check that the power cable
plug is not dirty, loose or broken and
then only insert the plug completely.
• Improper or loose connections can cause
heat generation or fire.
• Children may play with them and cause
• 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.
Don't use a power cord, a plug or a loose
socket which is damaged.
Do not touch , operate, or repair the
product with wet hands. Hold the plug by
hand when taking out
• Incorrect refrigerant used can prevent the
normal operation of the unit.
• Otherwise it may cause a fire or electrical
Do not place a heater or other heating
appliances near the power cable.
Do not allow water to run into electric
parts. Install the unit away from water
• There is risk of fire and electric shock.
Do not use the product in a tightly closed
space for a long time. Perform ventilation
• There is risk of fire, failure of the product, or
electric shock.
Do not open the front grille of the product
during operation. (Do not touch the
electrostatic filter, if the unit is so equipped.)
• Oxygen deficiency could occur and hence
harm your health.
• There is risk of physical injury, electric shock,
or product failure.
Ventilate the product room from time to
time when operating it together with a
stove, or heating element etc.
Turn the main power off and unplug the
unit when cleaning or repairing the
• Oxygen deficiency can occur and hence harm
your health.
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.
• There is risk of electric shock.
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 plug or unplug the power supply plug to turn the unit
• There is risk of fire or electric shock.
Two or more people must lift and
transport the product.
• Avoid personal injury.
Keep level even when installing the
• To avoid vibration or noise.
4 Room Air Conditioner
• There is risk of electric shock or fire.
Do not store or use or even allow
flammable gas or combustibles near the
• There is risk of fire.
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.
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.
Do not place ANYTHING on the power
• 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.
Do not install the product where it will be
exposed to sea wind (salt spray) directly.
• It may cause corrosion on the product.
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.
Install the drain hose to ensure that the
condensed water is drained away properly.
• A bad connection may cause water leakage.
Always check for gas (refrigerant)
leakage after installation or repair of
• Low refrigerant levels may cause failure of
Safety Precautions
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.
• There is risk of personal injury.
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.
Do not tilt the unit when removing or
uninstalling it.
• The condensed water inside can spill .
Dismantling the unit, treatment of the
refrigerant oil and eventual parts should
be done in accordance with local and
national standards.
• It may cause product failure.
Do not step on or put anyting on the
product. (outdoor units)
• There is risk of personal injury and failure of
Be cautious when unpacking and
installing the product.
• Sharp edges could cause injury.
Do not mix air or gas other than the
specified refrigerant used in the system .
• There is risk of fire, electric shock, or damage
to the plastic parts of the 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.
If the refrigerant gas leaks during the
repair, do not touch the leakaing
refrigerant gas.
• The refrigernat gas can cause frostbite (cold
If the refrigerant gas leaks during the
installation, ventilate the area immediately.
• If air enters the refrigerant system, an
excessively high pressure results, causing
equipment damage or injury.
• Otherwise it can be harmfull for your health.
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.
Do not recharge or disassemble the
batteries. Do not dispose off batteries in
a fire.
• There is risk of fire or product failure.
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.
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.
• The chemicals in batteries could cause burns
or other health hazards.
• Moisture may condense and wet or damage
If you eat the liquid from the batteries,
brush your teeth and see doctor. Do not
use the remote if the batteries have
Do not drink the water drained from the
• The chemicals in batteries could cause burns
or other health hazards.
Use a soft cloth to clean. Do not use
harsh detergents, solvents or splashing
water etc .
• They may burn or explode.
Do not expose your skin or kids or
plants to the cool or hot air draft.
• This could harm to your health.
• 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.
Owner's Manual 5
Do not touch the metal parts of the
product when removing the air filter.
Do not block the inlet or outlet of air flow.
Electrical Safety
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 appliance
unless the cover screw is metal and not insulated, and the wall receptacle is grounded through the
house wiring.
• If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle and
circuit checked by a qualified electrician.
Temporary Use of an Adapter
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 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
terminal. Avoid frequently unplugging the power cord as this can lead to eventual ground terminal damage.
• Never use the appliance with a broken adapter.
Temporary Use of an Extension Cord
We strongly discourage the use of an extension cord due to potential safety hazards.
This appliance should be installed in accordance with national wiring regulations. This guide acts as a
guide to help to explain product features.
Symbols used in this Manual
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.
6 Room Air Conditioner
Product Introduction
Product Introduction
Here is a brief introduction of the indoor and outdoor units. Please see the information specific to your
indoor unit type.
Indoor Units
Plasma filter
Air filter
Air inlet
ON/OFF button
Front grille
Operation lamp
Triple filter
Signal Receiver
Horizontal vane
Air outlet
Vertical louver
Allergy free filter
Operation Indication Lamps
• Power : 'Power' lamp lights up during Cooling Operation
• Timer : 'Timer' lamp lights up during Timer Operation
• Plasma Purifier: 'Purifier' lamp lights up during Plasma Purification Operation
During Air Circulation Operation, 'Power' lamp lights up.
While Plasma Purification operates with Air Circulation Operation, ‘Power’ lamp and ‘Purifier’ lamp
lights up at the same time.
Outdoor Unit
Air intake vents
Refrigerant pipes
Air outlet vents
Base plate
Drain hose
Owner's Manual 7
Product Instructions
Operating Instructions
How to insert the Batteries
1. Remove the battery cover by pulling it according to the arrow
2. Insert new batteries making sure that the (+) and (-) of battery are
installed correctly.
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.
4. Use 2 AAA(1.5 volt) batteries.
Wireless Remote Controller Maintenance
1. Choose a suitable place where its safe & easy
to reach.
2. Fix the holder to wall etc with the supplied
screws firmly.
3. Slide the remote controller inside the holder.
1. Remote controller should never be exposed to
direct sunlight.
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.
Operating Method
1. The signal receiver is inside the unit.
2. Aim the remote controller towards the unit to operate it.
There should not be any blockage in between.
8 Room Air Conditioner
Operating Instructions
Wireless Remote Controller
The controls will look like the following.
Flip-up door
Operation Mode
Cooling Operation
Auto Operation or Auto Changeover
Healthy Dehumidification Operation
Heating Operation
• Cooling Model(
), Heat Pump Model(
Used to set auto clean mode.
In some models this button has a 2nd function of LED
luminosity control.
(Not available in all models)
Used to adjust LCD luminosity.
To use the functions printed in blue at the bottom of the buttons press 2nd F button first and then the required function
button. Pressing the 2nd F button activates the blue printed function of the respective button. To cancel the function
press the 2nd F button again else it will automatically cancel if remains idle after 10 seconds.
Owner's Manual
Signal transmitter
Used to turn off/on the unit.
Used to select the operation mode.
Used to select the room temperature.
Used to select fan speed in four steps
low, medium, high and CHAOS.
Used to start or stop the speed cooling.
(It operates fan in super high speed in cooling mode)
Used to stop or start louver movement and set the
desired up/down airflow direction.
Used to set the time of starting and stopping
Used to adjust the time.
Used to set and to cancel the timer operation.
Used to set sleep mode auto operation.
Used to circulate the room air without cooling or
Used to check the room temperature.
Used to start or stop the plasma-purification
Used to set the desired horizontal airflow direction.
Used prior to resetting time.
16. 2nd F BUTTON
Used prior to using modes printed in blue at the
bottom of buttons.
Operating Instructions
Operation Mode
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.
(Heat pump model only)
Auto Operation (Cooling Only Model)
Auto Changeover (Heat Pump Model)
For cooling or heating operation set the desired indoor
temperature by pressing the ROOM TEMPERATURE
For cooling the temperature can be set within 18°C-30°C and
for heating the temperature range is 16°C-30°C
To raise the temperature
To lower the temperature
Set the fan speed with the remote controller. You can select the fan speed in four steps-low,
medium, high and CHAOS by pressing the INDOOR FAN SPEED SELECTOR BUTTON.
Each time the button is pressed, the fan speed mode is shifted.
Fan speed is on low.
Fan speed is on medium.
Fan speed is on high.
Natural wind by the CHAOS logic
For fresher feeling, press the INDOOR FAN SPEED SELECTOR BUTTON 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.
10 Room Air Conditioner
Operating Instructions
Healthy Dehumidification Operation
To run the healthy dehumidification mode follow steps 1, and 2 and 4
(See operation mode)
Auto Operation (Cooling Only Model)
In this operation mode the actual setting temperature and the fan speed
are automatically set by the electronic control logic based on the current
room temperature. If you feel hot or cold press the temperature setting
buttons respectively for more cooling or heating effect.
NOTE : You cannot set the actual setting temperature and the indoor fan
speed in this operation mode. But you can use the Chaos swing
in this operation.
If the system is not operating as desired, switch manually to
another mode.
To run the auto operation follow steps 1, and 2. (See operation mode)
Auto Changeover Operation (Heat Pump Model)
Auto operation basically is heating or cooling function of the air
But during this operation the controller changes the operation mode
automatically to keep the temperature within ±2°C with respect to the
setting temperature.
To run this operation follow steps 1, 2, 3, and 4. (See operation mode)
Owner’s Manual
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
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.
Operating Instructions
Jet Cool/Heat Operation
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 setting temperature for 30 minutes for fast and effective
Similarly, jet heat function (available only in some models) warms up the room quickly
by operating at super high fan speed and 30°C setting temperature for 60 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
• Jet cool function cannot be activated during heating or auto changeover operations.
• In case of Inverter, Art Cool and Art Cool Wide(non-Deluxe) model, you can use jet heat function by
pressing JET COOL BUTTON for heating operation.
• Art Cool and Art Cool Wide models close the side discharges during jet cool/heat operation, for strong
cooling and heating.
NEO PLASMA Purification Operation (Optional)
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.
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.
Auto Clean (Optional)
During auto clean function, moistures left in indoor units after cooling operation or healthy dehumidification
operation can be removed.
1. Press the AUTO CLEAN BUTTON to activate this function.
2. Now 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
3. This dries up any remains of moisture & cleans the unit internally.
4. If you press AUTO CLEAN BUTTON again during operation, this function is
During auto clean function, only START/STOP BUTTON, PLASMA BUTTON and AUTO CLEAN BUTTON
can be used.
12 Room Air Conditioner
Operating Instructions
Display Luminosity (Optional)
The Display Luminosity 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 2ndF button
and, press display luminosity button.
Display will be dark. Press the button again to set bright display.
Forced operation
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.
Cooling Model
Operating mode
Indoor FAN Speed
Setting Temperature
Room Temp. ≥ 24°C
Heat pump Model
21°C ≤ Room Temp. < 24°C
Healthy Dehumidification
Room Temp. < 21°C
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.
Owner’s Manual
Operating Instructions
Sleep Mode
• The sleep mode will operate indoor fan at slow speed in cooling mode and at medium speed in heating mode for
pleasant sleep.
• Art Cool and Art Cool Wide (non-Deluxe) close the lower discharge partially in sleep mode for pleasant sleep.
In cooling mode or healthy dehumidification mode:
The setting temperature will rise automatically two times by 1°C over next consecutive 30 minutes (2°C in 1 hour) for a
comfortable sleep. Now this will be the final setting temperature as long as sleep mode is functioning.
Setting the Current Time
1. Time can be set only when you press the RESET BUTTON. Having replacing the batteries,
you should press the RESET BUTTON to reset the time. Press the Start/Stop button.
2. Press 2nd F button and check if
icon is on.
3. Press the TIME SETTING BUTTONS until the desired time is set.
Check the indicator for A.M. and P.M.
Timer Setting
1. Make sure to set current time correctly on the display of the remote controller.
2. Press 2nd F button.
3. Press the ON/OFF TIMER BUTTONS to turn timer on or off.
4. Press the TIME SETTING BUTTONS until the desired time is set.
5. To set the selected time, press the TIMER SETTING BUTTONS aiming the remote controller at the
signal receptor.
To cancel the timer setting
Check if
icon is off.
Press the TIMER CANCEL BUTTON aiming the remote controller at the signal receptor.
(The timer lamp on the air conditioner and the display will go off.)
Select one of the following four types of operation.
Delay off timer
14 Room Air Conditioner
Delay on timer
Delay off and on timer
Delay on and off timer
1. Press the SLEEP MODE AUTO BUTTON to set the time when you want the unit to stop automatically.
2. 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 times.
To alter the time period in steps of 1 hour, press the SLEEP MODE AUTO BUTTON while aiming at air conditioner.
3. • (In case of non-Inverter Model)
Make sure the sleep mode LED lights up.
To cancel the sleep mode, press the SLEEP MODE AUTO BUTTON several times until the sleep mode LED lights off.
• (In case of Inverter Model)
Make sure the Timer LED lights up.
To cancel the sleep mode, press the SLEEP MODE AUTO BUTTON several times until the Timer LED lights off.
Operating Instructions
Vertical / Horizontal Airflow Direction Control (Optional)
The left/right(Horizontal airflow) can be adjusted
by using the remote control.
1. Press the START/STOP BUTTON to start the
1. Press the START/STOP BUTTON to start the
3. The louvers will swing up &
down automatically.
4. To stop the louver at a desired
angle, press
3. The louvers will swing left &
right automatically.
4. To stop the louvers at a desired
angle, press
• By pressing the CHAOS SWING BUTTON the horizontal air flow direction is changed automatically based on the chaos
algorithm to distribute the air in the room evenly and at the same time to make the human body feel most comfortable as if
enjoying natural breeze.
• Always use the remote controller to adjust the up and down air flow direction. Manually moving the vertical air flow
direction louver by hand could damage the mechanism.When the unit is shut off, the up/down airflow direction louver will
close the air outlet vent of the system.
Air Circulation Mode
This operation circulates the air without cooling or heating. It can
be activated by pressing the AIR CIRCULATION BUTTON. Once
the air circulation is activated you can select the air speed by
CHAOS Air economizes power consumption and prevents overcooling. The fan speed is automatically
changed from high to low or vice versa, depending on the ambient temperature.
• In case of inverter type models where there is no AIR CIRCULATION BUTTON, air circulation can be
operated by pressing the PLASMA BUTTON.
Auto Restart Function
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.
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 indicator lamp(2) will blink 4
To enable it, press the button again for 6 seconds. The unit will beep twice and the indicator
lamp(1) will blink 4 times.
Owner’s Manual
The up/down airflow (Vertical airflow) can be
adjusted by using the remote controller.
Maintenance and Service
Maintenance and Service
Indoor Unit
Clean the unit with a soft dry cloth. Do not use bleach or abrasives.
Never use any of these
• Water hotter than 40°C. It may cause deformation and discoloration.
• Volatile substances. They may damage the surface of the air conditioner.
P ow
de r
G a solin e
Air Filters
The air filters behind the front panel / grill should be checked and
cleaned once in every 2 weeks or more often if necessary. To
remove the filters see the self explanatory diagrams for each
model type. Clean the filters with a vacuum cleaner or warm
soapy water. If dirt is not easily removed, wash with a solution of
detergent in luke warm water. Dry well in shade after washing and
reinstall the filters back in place.
Plasma Filters
The plasma filters behind the air filter should be checked and
cleaned once in every 3 months or more often if necessary. To
remove the filters see the self explanatory diagrams for each
model type. Clean the filters with a vacuum cleaner. If it is dirty
wash it with water and dry well in shade an install back in place.
Virus & Allergy safe Filters, Triple Filter
Remove the Virus & Allergy safe Filter and Triple Filters behind
the air filter and expose expose them in direct sunlight for 2 hours.
And then insert these filters into original position.
Removal of Filters
Open the front panel as shown.
Then pull the filter tab slightly forward to remove the air filter.
After removing the air filter remove the plasma and Virus & Allergy safe Filter by slightly pulling downwards.
Plasma filter
Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.
16 Room Air Conditioner
Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and
unplug the power cord.
Maintenance and Service
Outdoor Unit
Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs.
Operation Tips!
Do not overcool the room.
Keep blinds or curtains
This is not good for the health and
wastes electricity.
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.
Keep the room temperature
Do not let direct sunshine enter
the room when the air conditioner
is in operation.
Clean the air filter
Blockages in the air filter
reduce the airflow and
lower cooling and
dehumidifying effects.
Clean at least once every
two weeks.
Adjust the vertical and horizontal
airflow direction to ensure a
uniform temperature in the room.
Ventilate the room
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
The unit gives its rated
cooling capacity when the
fan speed is high.
Self-Diagnosis Function
This unit has an inbuilt error diagnosis capability. Unit LED(
Please contact your serviceman/dealer in such a situation
Error Display LED (
3 sec
) will blink in case if thermistor fails.
Check Point
• Indoor room temperature thermistor open/short.
• Indoor pipe temperature thermistor open/short.
3 sec
3 sec
Owner's Manual 17
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.
Maintenance and Service
Troubleshooting Tips! Save time and money!
The air conditioner may be operating abnormally when:
does not start
does not cool
as it should
Possible Causes
What To Do
The air conditioner is
• Make sure the air conditioner plug is
pushed completely into the outlet.
The fuse is blown/circuit
breaker is tripped.
• Check the house fuse/circuit breaker box
and replace the fuse or reset the breaker.
Power failure.
• 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.
High voltage.
• If the voltage is unusually very high or low
the circuit Breaker will trip.
Airflow is restricted.
• Make sure there are no curtains, blinds, or
furniture blocking the front of the air
The air filter is dirty.
• Clean the filter at least every 2 weeks.
See the Maintenance and Service section.
The room may have been hot.
• When the air conditioner is first turned on,
you need to allow time for the room to cool
Cold air is escaping.
• Check for open furnace floor registers and
cold air returns.
Check the temperature settings.
• Make sure they are correct.
There might be any heating
source in the room.
• Check and remove such source or turn it
off while using the air conditioner.
Call the service immediately in the following situations
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
User must carry routine checkup & cleaning to avoid unit’s poor performance.
In case of special situation, the job must be carried out by service person only.
18 Room Air Conditioner
P/No.: MFL61617405future reference.
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