00_CV_3P142629-1B.fm Page 1 Monday, May 9, 2005 6:23 PM
DAIKIN ROOM AIR CONDITIONER
MODELS FTXS20D(2)VMW(L) FTKS20D(2)VMW(L)

Operation Manual

FTXS25D(2)VMW(L) FTKS25D(2)VMW(L) FTXS35D(2)VMW(L) FTKS35D(2)VMW(L) CTXS50D(2)VMW(L) CTKS50D(2)VMW(L)
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01_EN_3P142629-1B.fm Page 1 Monday, May 9, 2005 6:29 PM

CONTENTS

READ BEFORE OPERATION
Safety precautions... 2 Names of parts.. 4 Preparation Before Operation. 7

OPERATION

AUTO DRY COOL HEAT FAN Operation... 10 Adjusting the Air Flow Direction. 12 POWERFUL Operation.. 14 OUTDOOR UNIT SILENT Operation. 15 ECONO Operation.. 16 INTELLIGENT EYE Operation. 17 TIMER Operation... 19 Note for Multi System.. 21

Care and Cleaning.. 23

TROUBLE SHOOTING

Trouble Shooting.. 26

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Safety precautions

Keep this manual where the operator can easily find them. Read this manual attentively before starting up the unit. For safety reason the operator must read the following cautions carefully. This manual classifies precautions into WARNING and CAUTION. Be sure to follow all precautions below: they are all important for ensuring safety.

WARNING

If you do not follow these instructions exactly, the unit may cause property damage, personal injury or loss of life.

CAUTION

If you do not follow these instructions exactly, the unit may cause minor or moderate property damage or personal injury.
Never do. Be sure to earth the air conditioner. Never touch the air conditioner (including the remote controller) with a wet hand.
Be sure to follow the instructions. Never cause the air conditioner (including the remote controller) to get wet.
In order to avoid fire, explosion or injury, do not operate the unit when harmful, among which flammable or corrosive gases, are detected near the unit. It is not good for health to expose your body to the air flow for a long time. Do not put a finger, a rod or other objects into the air outlet or inlet. As the fan is rotating at a high speed, it will cause injury. Do not attempt to repair, relocate, modify or reinstall the air conditioner by yourself. Incorrect work will cause electric shocks, fire etc. For repairs and reinstallation, consult your Daikin dealer for advice and information. The refrigerant used in the air conditioner is safe. Although leaks should not occur, if for some reason any refrigerant happens to leak into the room, make sure it does not come in contact with any flame as of gas heaters, kerosene heaters or gas range. If the air conditioner is not cooling (heating) properly, the refrigerant may be leaking, so call your dealer. When carrying out repairs accompanying adding refrigerant, check the content of the repairs with our service staff. Do not attempt to install the air conditioner by your self. Incorrect work will result in water leakage, electric shocks or fire. For installation, consult the dealer or a qualified technician. In order to avoid electric shock, fire or injury, if you detect any abnormally such as smell of fire, stop the operation and turn off the breaker. And call your dealer for instructions.

The air conditioner must be earthed. Incomplete earthing may result in electric shocks. Do not connect the earth line to a gas pipe, water pipe, lightning rod, or a telephone earth line. In order to avoid any quality deterioration, do not use the unit for cooling precision instruments, food, plants, animals or works of art. Never expose little children, plants or animals directly to the air flow. Do not place appliances which produce open fire in places exposed to the air flow from the unit or under the indoor unit. It may cause incomplete combustion or deformation of the unit due to the heat. Do not block air inlets nor outlets. Impaired air flow may result in insufficient performance or trouble.
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Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not remove the fan guard. Do not place anything under the indoor or outdoor unit that must be kept away from moisture. In certain conditions, moisture in the air may condense and drip. After a long use, check the unit stand and fittings for damage. Do not touch the air inlet and aluminum fins of outdoor unit. It may cause injury. The appliance is not intended for use by young children or infirm persons without supervision. Young children should be supervised to ensure that they do not play with the appliance. To avoid oxygen deficiency, ventilate the room sufficiently if equipment with burner is used together with the air conditioner. Before cleaning, be sure to stop the operation, turn the breaker off or pull out the supply cord. Do not connect the air conditioner to a power supply different from the one as specified. It may cause trouble or fire. Depending on the environment, an earth leakage breaker must be installed. Lack of an earth leakage breaker may result in electric shocks. Arrange the drain hose to ensure smooth drainage. Incomplete draining may cause wetting of the building, furniture etc. Do not operate the air conditioner with wet hands.

Do not wash the indoor unit with excessive water, only use a slightly wet cloth. Do not place things such as vessels containing water or anything else on top of the unit. Water may penetrate into the unit and degrade electrical insulations, resulting in an electric shock.

Installation site.

I To install the air conditioner in the following types of environments, consult the dealer. Places with an oily ambient or where steam or soot occurs. Salty environment such as coastal areas. Places where sulfide gas occurs such as hot springs. Places where snow may block the outdoor unit. The drain from the outdoor unit must be discharged to a place of good drainage.
Consider nuisance to your neighbours from noises.
I For installation, choose a place as described below. A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration. A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours.

Electrical work.

For power supply, be sure to use a separate power circuit dedicated to the air conditioner.

System relocation.

Relocating the air conditioner requires specialized knowledge and skills. Please consult the dealer if relocation is necessary for moving or remodeling.
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Names of parts

I Indoor Unit

ON/OFF

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I Outdoor Unit

Indoor Unit
12. Indoor Unit ON/OFF switch: (page 10.) Push this switch once to start operation. Push once again to stop it. The operation mode refers to the following table. Temperature Air flow setting rate 22C F(C)TKS COOL AUTO AUTO F(C)TXS AUTO 25C Mode This switch is useful when the remote controller is missing. 13. Operation lamp (green) 14. TIMER lamp (yellow): (page 19.) 15. INTELLIGENT EYE lamp (green): (page 17.) 16. Signal receiver: It receives signals from the remote controller. When the unit receives a signal, you will hear a short beep. Operation start.beep-beep Settings changed..beep Operation stop.beeeeep
1. Air filter 2. Titanium Apatite Photocatalytic Air-Purifying Filter: These filters are attached to the inside of the air filters. 3. Air inlet 4. Front panel 5. Panel tab 6. Room temperature sensor: It senses the air temperature around the unit. 7. INTELLIGENT EYE sensor: It detects the movements of people and automatically switches between normal operation and energy saving operation. (page 17.) 8. Display 9. Air outlet 10. Flaps (horizontal blades): (page 12.) 11. louvers (vertical blades): The louvers are inside of the air outlet. (page 13.)
17. Air inlet: (Back and side) 18. Air outlet 19. Refrigerant piping and inter-unit cable 20. Drain hose 21. Earth terminal: It is inside of this cover. 22. Outside air temperature sensor: It senses the ambient temperature around the unit.

Appearance of the outdoor unit may differ from some models.
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I Remote Controller

POWERFUL
MODE FAN SWING SILENT COMFORT SENSOR

ON OFF TIMER

CANCEL

<ARC433A50, 43>

1. Signal transmitter: It sends signals to the indoor unit. 2. Display: It displays the current settings. (In this illustration, each section is shown with all its displays ON for the purpose of explanation.) 3. ECONO button: ECONO operation (page 16.) 4. POWERFUL button: POWERFUL operation (page 14.) 5. TEMPERATURE adjustment buttons: It changes the temperature setting. 6. ON/OFF button: Press this button once to start operation. Press once again to stop it. 7. MODE selector button: It selects the operation mode. (AUTO/DRY/COOL/HEAT/FAN) (page 10.) 8. SILENT button: OUTDOOR UNIT SILENT operation (page 15.) 9. FAN setting button: It selects the air flow rate setting. 10. SWING button: Ajusting the Air Flow Direction. (page 12.) 11. COMFORT AIRFLOW button: COMFORT AIRFLOW operation (page 13.) 12. SENSOR button: INTELLIGENT EYE operation (page 17.) 13. ON TIMER button: (page 20.) 14. OFF TIMER button: (page 19.) 15. TIMER Setting button: It changes the time setting. 16. TIMER CANCEL button: It cancels the timer setting. 17. CLOCK button: (page 9.) 18. RESET button: Restart the unit if it freezes. Use a thin object to push.
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Preparation Before Operation

I To set the batteries

1. Press with a finger and slide the front cover to take it off. 2. Set two dry batteries (AAA). 3. Set the front cover as before.
Position + and correctly!

ATTENTION

I About batteries When replacing the batteries, use batteries of the same type, and replace the two old batteries together. When the system is not used for a long time, take the batteries out. We recommend replacing once a year, although if the remote controller display begins to fade or if reception deteriorates, please replace with new alkali batteries. Do not use manganese batteries. The attached batteries are provided for the initial use of the system. The usable period of the batteries may be short depending on the manufactured date of the air conditioner.
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I To operate the remote controller
To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote controller, such as a curtain, the unit will not operate. Do not drop the remote controller. Do not get it wet. The maximum distance for communication is about 7 m.

Receiver

I To fix the remote controller holder on the wall
1. Choose a place from where the signals reach the unit. 2. Fix the holder to a wall, a pillar, or similar location with the screws procured locally. 3. Place the remote controller in the remote controller holder.

Remote controller holder Set.
To remove, pull it upwards.
I About remote controller Never expose the remote controller to direct sunlight. Dust on the signal transmitter or receiver will reduce the sensitivity. Wipe off dust with soft cloth. Signal communication may be disabled if an electronic-starter-type fluorescent lamp (such as inverter-type lamps) is in the room. Consult the shop if that is the case. If the remote controller signals happen to operate another appliance, move that appliance to somewhere else, or consult the shop.
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I To set the clock

1. Press CLOCK button.

is displayed. blinks.

2. Press TIMER setting button to set the clock to the present time.
Holding down button rap or idly increases or decreases the time display.

ECONO POWERFUL

3. Press CLOCK button.

blinks.

MODE SWING FAN SILENT COMFORT SENSOR

I Turn the breaker ON

Turning ON the breaker opens the flap, then closes it again. (This is a normal procedure.)

ON OFF TIMER CANCEL

I Tips for saving energy
Be careful not to cool (heat) the room too much. Keeping the temperature setting at a moderate level helps save energy. Cover windows with a blind or a curtain. Blocking sunlight and air from outdoors increases the cooling (heating) effect. Clogged air filters cause inefficient operation and waste energy. Clean them once in about every two weeks.
Recommended temperature setting For cooling:26C 28C For heating:20C 24C

I Please note

The air conditioner always consumes 15-35 watts of electricity even while it is not operating. If you are not going to use the air conditioner for a long period, for example in spring or autumn, turn the breaker OFF. Use the air conditioner in the following conditions.
Mode COOL Operating conditions Outdoor temperature:2MK(X)S 10 to 46 C 3/4MK(X)S 10 to 46 C RK(X)S 10 to 46 C Indoor temperature: 18 to 32 C Indoor humidity: 80% max. Outdoor temperature:2MXS 10 to 21 C 3/4MXS 15 to 21 C RXS 15 to 21 C Indoor temperature: 10 to 30 C Outdoor temperature:2MK(X)S 10 to 46 C 3/4MK(X)S 10 to 46 C RK(X)S 10 to 46 C Indoor temperature: 18 to 32 C Indoor humidity: 80% max. If operation is continued out of this range A safety device may work to stop the operation. (In multi system, it may work to stop the operation of the outdoor unit only.) Condensation may occur on the indoor unit and drip. A safety device may work to stop the operation.

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Adjusting the Air Flow Direction
You can adjust the air flow direction to increase your comfort.
I To adjust the horizontal blades (flaps)

1. Press SWING button.

is displayed on the LCD and the flaps will begin to swing.
2. When the flaps have reached the desired position, press SWING button once more.
The display will go blank. The flaps will stop moving.

1, 2 3, 4

I To adjust the vertical blades (louvers)
Hold the knob and move the louvers. (You will find a knob on the left-side and the right-side blades.) When the unit is installed in the corner of a room, the direction of the louvers should be facing away from the wall. If they face the wall, the wall will block off the wind, causing the cooling (or heating) efficiency to drop.
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I To start COMFORT AIRFLOW operation
3. Press COMFORT AIRFLOW button.
The flap position will change, preventing air from blowing directly on the occupants of the room. is displayed on the LCD.
COOL/DRY The flap will go up. HEAT The flap will go down.
I To cancel COMFORT AIRFLOW operation
4. Press COMFORT AIRFLOW button again.
The flaps will return to the memory position from before COMFORT AIRFLOW mode.
Notes on COMFORT AIRFLOW operation
POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time. Priority is given to POWERFUL operation.
Notes on flaps and louvers angles
When SWING button is selected, the flaps swinging range depends on the operation mode. (See the figure.) I ATTENTION Always use a remote controller to adjust the flaps angle. If you attempt to move it forcibly with hand when it is swinging, the mechanism may be broken. Be careful when adjusting the louvers. Inside the air outlet, a fan is rotating at a high speed.

In DRY mode or COOL mode

When stop operation 10 Upper limit

Lower limit

In HEAT mode

When stop operation

30 Upper limit 65 Lower limit

In FAN mode

When stop operation 5 Upper limit
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POWERFUL Operation

POWERFUL operation quickly maximizes the cooling (heating) effect in any operation mode. You can get the maximum capacity.
I To start POWERFUL operation
1. Press POWERFUL button.
POWERFUL operation ends in 20 minutes. Then the system automatically operates again with the settings which were used before POWERFUL operation. When using POWERFUL operation, there are some functions which are not available. is displayed on the LCD.
I To cancel POWERFUL operation
2. Press POWERFUL button again.

disappears from the LCD.

I Notes on POWERFUL operation POWERFUL Operation cannot be used together with ECONO, SILENT, or COMFORT Operation. After-press priority is given. POWERFUL Operation can only be set when the unit is running. Pressing the operation stop button causes the settings to be canceled, and the disappears from the LCD. In COOL and HEAT mode To maximize the cooling (heating) effect, the capacity of outdoor unit must be increased and the air flow rate be fixed to the maximum setting. The temperature and air flow settings are not variable. In DRY mode The temperature setting is lowered by 2.5C and the air flow rate is slightly increased. In FAN mode The air flow rate is fixed to the maximum setting. When using priority-room setting See Note for multi system (page 21.)

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OUTDOOR UNIT SILENT Operation
OUTDOOR UNIT SILENT operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during night.
I To start OUTDOOR UNIT SILENT operation

1. Press SILENT button.

is displayed on the LCD.
I To cancel OUTDOOR UNIT SILENT operation
2. Press SILENT button again.
I Note on OUTDOOR UNIT SILENT operation If using a multi system, this function will work only when the OUTDOOR UNIT SILENT operation is set on all operated indoor units. However, if using priority-room setting, see Note for multi system (page 21.) This function is available in COOL, HEAT, and AUTO modes. (This is not available in FAN and DRY mode.) POWERFUL operation and OUTDOOR UNIT SILENT operation cannot be used at the same time. Priority is given to POWERFUL operation.
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ECONO Operation

ECONO operation is a function which enables efficient operation by lowering the maximum power consumption value.
I To start ECONO operation

1. Press ECONO button.

is displayed on the LCD.
I To cancel ECONO operation
2. Press ECONO button again.

disappears from the LCD.

ECONO Operation can only be set when the unit is running. Pressing the operation stop button causes the settings to be canceled, and the disappears from the LCD. ECONO operation is a function which enables efficient operation by limiting the power consumption of the outdoor unit (operating frequency). ECONO operation functions in AUTO, COOL, DRY, and HEAT modes. The fan strength does not change in ECONO operation. POWERFUL operation and ECONO operation cannot be used at the same time. Priority is given to POWERFUL operation. Power consumption may not drop even if ECONO operation is used, when the level of power consumption is already low.
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INTELLIGENT EYE Operation
INTELLIGENT EYE is the infrared sensor which detects the human movement.
I To start INTELLIGENT EYE operation

1. Press SENSOR button.

I To cancel the INTELLIGENT EYE operation
2. Press SENSOR button again.
When somebody in the room Normal operation
When nobody in the room 20 min. after, start energy

saving

operation.
Somebody back in the room Back to normal operation.

Check that the clock is correct. If not, set the clock to the present time (page 9.).
1. Press ON TIMER button.
3. Press ON TIMER button again.
I To cancel ON TIMER operation
I To combine ON TIMER and OFF TIMER
A sample setting for combining the two timers is shown below.

(Example)

Present time: 11:00 PM (The unit operating) OFF TIMER at 0:00 a.m. ON TIMER at 7:00 a.m.

Display

Combined
I In the following cases, set the timer again. After a breaker has turned OFF. After a power failure. After replacing batteries in the remote controller.
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Note for Multi System

What is a Multi System?
This system has one outdoor unit connected to multiple indoor units. Functions depend on the model. See the list of functions and applicable models (*2) on the next page.
Outdoor unit Living room C A room B room
I Selecting the Operation Mode
1. With the Priority Room Setting present but inactive or not present.
room When more than one indoor unit is operating, priority is given to the first unit that was turned on. In this case, set the units that are turned on later to the same operation mode (*1) as the first unit. Otherwise, they will enter the Standby Mode, and the operation lamp will flash; this does not indicate malfunction. (*1) COOL, DRY and FAN mode may be used at the same time. AUTO mode automatically selects COOL mode or HEAT mode based on the room temperature. Therefore, AUTO mode is available when selecting the same operation mode as that of the room with the first unit to be turned on. CAUTION Normally, the operation mode in the room where the unit is first run is given priority, but the following situations are exceptions, so please keep this in mind. If the operation mode of the first room is FAN Mode, then using Heating Mode in any room after this will give priority to heating. In this situation, the air conditioner running in FAN Mode will go on standby, and the operation lamp will flash.
2. With the Priority Room Setting active.
See Priority Room Setting on the next page.
I NIGHT QUIET Mode (Available only for cooling operation)
NIGHT QUIET Mode requires initial programming during installation. Please consult your retailer or dealer for assistance. NIGHT QUIET Mode reduces the operation noise of the outdoor unit during the night time hours to prevent annoyance to neighbors. The NIGHT QUIET Mode is activated when the temperature drops 5C or more below the highest temperature recorded that day. Therefore, when the temperature difference is less than 5C, this function will not be activated. NIGHT QUIET Mode reduces slightly the cooling efficiency of the unit.

Function available Function unavailable
Cooling capacity will drop if the Maximum Power Input Limitation is used.
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Care and Cleaning

CAUTION Units I Indoor unit, Outdoor unit and Remote controller
1. Wipe them with dry soft cloth. Before cleaning, be sure to stop the operation and turn the breaker OFF.

I Front panel

1. Open the front panel.
Hold the panel by the tabs on the two sides and lift it unitl it stops with a click.
2. Remove the front panel.
Lift the front panel up, slide it slightly to the right, and remove it from the horizontal axle.
3. Clean the front panel.
Wipe it with a soft cloth soaked in water. Only neutral detergent may be used. In case of washing the panel with water, dry it with cloth, dry it up in the shade after washing.
4. Attach the front panel.
Set the 2 keys of the front panel into the slots and push them in all the way. Close the front panel slowly and push the panel at the 3 points. ( 1 on each side and 1 in the middle.)
Fit the key into the slot.
Dont touch the metal parts of the indoor unit. If you touch those parts, this may cause an injury. When removing or attaching the front panel, use a robust and stable stool and watch your steps carefully. When removing or attaching the front panel, support the panel securely with hand to prevent it from falling. For cleaning, do not use hot water above 40 C, benzine, gasoline, thinner, nor other volatile oils, polishing compound, scrubbing brushes, nor other hand stuff. After cleaning, make sure that the front panel is securely fixed.
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Filters

1. Open the front panel. (page 23.) 2. Pull out the air filters.
Push a little upwards the tab at the center of each air filter, then pull it down.
3. Take off the Titanium Apatite Photocatalytic Air-Purifying Filter.
Hold the recessed parts of the frame and unhook the four claws.
4. Clean or replace each filter.

See below.

Titanium Apatite Photocatalytic Air-Purifying Filter Filter frame

The following cases are not air conditioner troubles but have some reasons. You may just continue using it.
Operation does not start soon. When ON/OFF button was pressed soon after operation was stopped. When the mode was reselected. Hot air does not flow out soon after the start of heating operation. The heating operation stops suddenly and a flowing sound is heard. The outdoor unit emits water or steam.

Explanation

This is to protect the air conditioner. You should wait for about 3 minutes.
The air conditioner is warming up. You should wait for 1 to 4 minutes. (The system is designed to start discharging air only after it has reached a certain temperature.) The system is taking away the frost on the outdoor unit. You should wait for about 3 to 8 minutes. I In HEAT mode The frost on the outdoor unit melts into water or steam when the air conditioner is in defrost operation. I In COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips. I This happens when the air in the room is cooled into mist by the cold air flow during cooling operation.
Mists come out of the indoor unit.
The indoor unit gives out odour. I This happens when smells of the room, furniture, or cigarettes are absorbed into the unit and discharged with the air flow. (If this happens, we recommend you to have the indoor unit washed by a technician. Consult the service shop where you bought the air conditioner.) The outdoor fan rotates while the air conditioner is not in operation. I After operation is stopped: The outdoor fan continues rotating for another 60 seconds for system protection. I While the air conditioner is not in operation: When the outdoor temperature is very high, the out door fan starts rotating for system protection. I For system protection, the air conditioner may stop operating on a sudden large voltage fluctuation. It automatically resumes operation in about 3 minutes.
The operation stopped suddenly. (OPERATION lamp is on)
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Check again.

Please check again before calling a repair person.
The air conditioner does not operate. (OPERATION lamp is off) Isnt it a power failure?
Hasnt a breaker turned OFF or a fuse blown? Are batteries set in the remote controller? Is the timer setting correct?
Cooling (Heating) effect is poor. Are the air filters clean? Is there anything to block the air inlet or the outlet of the indoor and the outdoor units? Is the temperature setting appropriate? Are the windows and doors closed? Are the air flow rate and the air direction set appropriately? Is the unit set to the INTELLIGENT EYE mode? (page 17.) Operation stops suddenly. (OPERATION lamp flashes.) Are the air filters clean? Is there anything to block the air inlet or the outlet of the indoor and the outdoor units? Clean the air filters or take all obstacles away and turn the breaker OFF. Then turn it ON again and try operating the air conditioner with the remote controller. If the lamp still flashes, call the service shop where you bought the air conditioner. Are operation modes all the same for indoor units connected to outdoor units in the multi system? If not, set all indoor units to the same operation mode and confirm that the lamps flash. Moreover, when the operation mode is in AUTO, set all indoor unit operation modes to COOL or HEAT for a moment and check again that the lamps are normal. If the lamps stop flashing after the above steps, there is no malfunction. (page 21.) An abnormal functioning happens during operation. The air conditioner may malfunction with lightning or radio waves. Turn the breaker OFF, turn it ON again and try operating the air conditioner with the remote controller.

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Call the service shop immediately.
I When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF. Continued operation in an abnormal condition may result in troubles, electric shocks or fire. Consult the service shop where you bought the air conditioner. I Do not attempt to repair or modify the air conditioner by yourself. Incorrect work may result in electric shocks or fire. Consult the service shop where you bought the air conditioner.
If one of the following symptoms takes place, call the service shop immediately.
I The power cord is abnormally hot or damaged. I An abnormal sound is heard during operation. I The safety breaker, a fuse, or the earth leakage breaker cuts off the operation frequently. I A switch or a button often fails to work properly. I There is a burning smell. I Water leaks from the indoor unit.
Turn the breaker OFF and call the service shop.
I After a power failure The air conditioner automatically resumes operation in about 3 minutes. You should just wait for a while.
I Lightning If lightning may strike the neighbouring area, stop operation and turn the breaker OFF for system protection.

Disposal requirements

Your air conditioning product is marked with this symbol. This means that electrical and electronic products shall not be mixed with unsorted household waste. Do not try to dismantle the system yourself: the dismantling of the air conditioning system, treatment of the refrigerant, of oil and of other parts must be done by a qualified installer in accordance with relevant local and national legislation. Air conditioners must be treated at a specialized treatment facility for re-use, recycling and recovery. By ensuring this product is disposed of correctly, you will help to prevent potential negative consequences for the environment and human health. Please contact the installer or local authority for more information. Batteries must be removed from the remote controller and disposed of separately in accordance with relevant local and national legislation.
We recommend periodical maintenance.
In certain operating conditions, the inside of the air conditioner may get foul after several seasons of use, resulting in poor performance. It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user. For specialist maintenance, contact the service shop where you bought the air conditioner. The maintenance cost must be born by the user.

GREEN RED

GREEN MICROCOMPUTER NORMAL LED-A NORMAL [NOTE 1]

2MXS, 2MKS series

DIAGNOSIS CHECK INDOOR UNIT
POWER SUPPLY FAULT OR [NOTE 2] NORMALLY FLASHING ON FLASHING OFF
1. Turn the power off and then on again. If the LED display recurs,the outdoor unit PCB is faulty. 2. Diagnosis marked Do not apply to some cases. For details, refer to the service guide.
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3P142629-1B M04B032A (0507)