Troubleshooting

Please check the following before calling for servicing.

• Is the temperature and the operation mode properly set by the remote controller?
• Are air quantity and direction properly controlled?
• Are air filters clean?
• Are areas directly below or next to the air conditioner blocked by furniture or other objects?
• Are windows and doors closed?
• Has the ventilation fan stopped?

Did this solve your problem? If not, please contact your nearest Daikin representative.

This is not a malfunction of the air conditioner.
The air conditioner is warming up. Please wait for about 3 minutes.

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Please check the following before calling for servicing.

• Is the breaker thrown or the fuse blown?
• Is the power plug connected to the outlet?
• Has there been a power failure?
• Do the batteries in the remote controller need replacement?
• Is the timer set correctly?

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1. Turn OFF the air conditioner.
2. Switch OFF the air conditioner's circuit breaker, and wait for twenty minute.
3. Turn the air conditioners circuit breaker back ON.
4. Turn the air conditioner ON and check the status of the operation light.

*Possible locations of the dedicated breaker for the air conditioner

The dedicated breaker for the air conditioner is located in the main fuse box.
If you do not know where the breaker is installed, please check with your air conditioning installer or a qualified electrician.

**IMPORTANT NOTE**

Turning off the main breaker will turn off all power to the property, DO NOT turn off the main breaker.

Result)

• Operation light is flashing again
• The air conditioner operete again , but the operation lamp started flashing again.

If the operation light is flashing, it is likely that the air conditioner is malfunctioning.

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Stop operation, unplug the power cord or turn off the circuit breaker, and contact the place of purchase.

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This is not a malfunction of the air conditioner.
This is to protect the air conditioner. Please wait for about 3 minutes.

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This is not a malfunction of the air conditioner.
When the voltage fluctuates largely, operation can stop to protect the air conditioner. Operation restarts automatically in about 3 minutes.

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When the room temperature reaches the set temperature, the air conditioner operates in breeze mode to prevent excessive cooling or heating. When the room temperature decreases or increases from the set temperature, the breeze mode is cancelled and the air flow volume increases. When the room temperature is stable and remains near the set temperature, the air flow volume may increase and decrease repeatedly.

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This is not a malfunction of the air conditioner.
When the ON timer is set, operation starts up to 1 hour before the time set to reach the setpoint. If the remote controller is operated during this time, the operation automatically stops. Restart operation using the remote controller.

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Please check the following before calling for servicing.

• Are the air filters clean? If not, clean the air filters and restart operation using the remote controller.If the operation lamp still flashes, disconnect the power plug from the outlet or turn the breaker off and contact the place of purchase.
• Are there any objects blocking the air inlet or outlet of the indoor/outdoor unit? Remove any objects and restart operation using the remote controller.

Did this solve your problem? If not, please contact your nearest Daikin representative.

This is not a malfunction of the air conditioner.The system is in defrost operation on the outdoor unit. Please wait for about 3 to 10 minutes.

Did this solve your problem? If not, please contact your nearest Daikin representative.

Check if the mould proof automatic setting is set to ON. If the setting is ON, mould proof operation is activated after dehumidifying, dry cooling, or cooling operation stops.

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Stop operation, unplug the power cord or turn off the circuit breaker, and contact the place of purchase.

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A clicking sound may be produced when the refrigerant control valve or electric component operates.

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A buzzing sound may be produced when the flap moves.

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A rattling/creaking sound may be produced when the flap position is adjusted during operation startup or stopping.

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When the room is completely closed and the ventilation fan is operating or when strong winds are blowing outside, outdoor air can enter the drain hose and cause a bubbling sound. This phenomenon tends to occur in a well-sealed house or apartment.

Please try the following to see if there are any improvements:

• Open the room vents if available
• Open a window
• Turn off the ventilator
• Point the end of the drain hose in a different direction

The sound is concerning
To control thumping and knocking sounds, a drain hose check valve can be used to prevent air from flowing indoors.
Please contact the installer of the air conditioner on how to attach the valve.

If you tried all of the above suggestions and notice no improvement, the cause is likely to be something else. Please contact either the installer of the air conditioner or Daikin to request an inspection.

Did this solve your problem? If not, please contact your nearest Daikin representative.

The hissing or crackling sound is produced by Streamer discharge. It does not denote a malfunction.

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Stop operation, unplug the power cord or turn off the circuit breaker, and contact the place of purchase.

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• The indoor unit sometimes discharges the room odor remaining inside the unit.
• Since a very small amount of ozone is generated during the Streamer air purifying operation, you may notice some odor at the air outlet. The amount of discharged ozone is extremely small and causes no health hazards.
• If mould proof operation is performed and there is an increase in humidity, this may produce an odor.

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Do not use a commercial cleaning agent. Commercial cleaners may cause adverse effects on the resin parts of the heat exchanger or other internal components. In the worst case, problems such as water leaks can occur.

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• (1) Operate the air conditioner in mould proof operation on a sunny day to let the inside of the unit dry thoroughly.
• (2) After the cleaning operation stops, unplug the power cord or turn off the dedicated circuit breaker for the air conditioner.
• (3) Remove the batteries from the remote controller.

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We recommend cleaning the air filters every 2 weeks. Wash the filters with water or clean them with a vacuum cleaner. (See the manual for details.) For heavy soiling, wash the filters with a neutral detergent diluted with tepid water and let the filters dry in a shady place.

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You can operate the unit by pressing the "ON/OFF" button on the unit. In this case, the operation mode and Fan speed are set to "automatic."

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The batteries are running low. Replace both batteries (2) with new ones. Estimated life for replacement battery is about 1 year. Use alkaline batteries.

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The display on the remote controller cannot be turned off.

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• The indoor unit may not receive remote controller signals properly in a room with fluorescent lamps on electronic ballasted lighting fixtures (such as inverter fluorescent lamps), or with LCD or plasma televisions. If this happens, contact the place of purchase.
• If direct sunlight hits the air conditioner's signal receiving part, it may not work properly.
• Worn batteries can also cause erratic operation. Replace all batteries with new batteries.

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If the monitor bright setting in the setting menu is set to OFF, the operation lamp does not light even during operation.

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The timer lamp flashes to indicate that the Streamer unit needs cleaning. After cleaning the Streamer unit, reset the lamp.

(Resetting method)

• (1) After cleaning, connect the power cord to AC outlet or turn on the circuit breaker.
• (2) With the air conditioner in non-operation, press and hold the filter cleaning indicator (LED) reset button for about 2 seconds.

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• During heating operation, the outdoor unit melts accumulated frost and discharges it as water or steam.
• During cooling operation, the pipes in the outdoor unit become cold and may cause water condensation. In such a case, condensed water can drip from the outdoor unit.

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Please refrain from using air conditioner, as water leakage can damage floors, the wall and other parts of your home and its furnishings.
Collect the water in a bucket or with a floor cloth until the leakage stops.

Please check whether water is being discharged from the drain hose outside.
Remove any obstructions that may be blocking the end of the drain hose.

Water is not draining out
Obstructions and bends in the drain hose or other parts of the drainage path can cause malfunctioning.
Contact either the installer of the air conditioner or Daikin to request a service.

Water is draining out
If the air filter in the indoor unit is dirty, it can lead to condensate forming which will leak from the air outlet; thus, it is important that you maintain and clean the air filter.
To view instructions on how to clean the air filter, please find your nearest Daikin business location to refer to the operations manual.

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• Is the front panel closed? If it is open, close it.
• Is the Streamer unit installed properly? Insert the Streamer unit all the way.
• Check if the tip of the needle in the Streamer unit is dirty. If it is dirty, clean it.
• When the room temperature approaches the set temperature, Streamer discharge stops and the air flow volume becomes low.

Did this solve your problem? If not, please contact your nearest Daikin representative.

Although the product can operate for air conditioning without the Streamer unit installed, the operation lamp flashes.

• *The remote controller's diagnosis function displays "AH" error indication.

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Since Streamer discharge generates a very small amount of ozone, there may be some odor at the air outlet. The amount of discharged ozone is extremely small and causes no health hazards.

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• After the air conditioner starts operating, the sensor performs processing to determine whether people are present or not. This processing takes about 2 minutes. Please wait during this time.
• The sensor may not detect small children or sleeping people because their movements are small.
• A decrease in the sensor's recognition performance may occur when the room temperature is high.
• If the human motion sensor does not detect people, move your hands side to side in a large motion in front of the indoor unit for more than 3 seconds.
• Make sure that the human motion sensor is set to ON, and check to see if the flap moves to the left and right.
• The sensor may not detect people at locations far away from the indoor unit.
• Check if the front panel is installed properly. If the front panel is dislodged from the proper installation position, the detection range of the human motion sensor may decrease.
• The sensor may not detect people moving toward or away from the indoor unit.
• If the front panel is dirty, the sensor may fail to detect. Clean the front panel.

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• The flap may have been touched during operation. Operate the air conditioner, and then turned it off. The flap will close properly.
• In the event the air conditioner stops operating due to a power outage, causing the flap to remain open, the flap may not close completely when the power supply resumes. In such a case, operate the air conditioner. The flap will move to proper position.

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The unit discharges cold air to quickly reduce humidity.

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Stop operation, unplug the power cord or turn off the circuit breaker, and contact the place of purchase.

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• Check if the front panel is detached.
  If the indicator lamp on the front panel is not on, the front panel may be dislodged from the proper position. Install the front panel properly.
• Check if the protrusion on the back side of the front panel is broken or damaged.
  The protrusion on the back side of the front panel serves as a part of the safety switch. Inspect the protrusion.

Did this solve your problem? If not, please contact your nearest Daikin representative.

Stop using the air purifier. To prevent product malfunction and unexpected problems, contact the place of purchase.

Did this solve your problem? If not, please contact your nearest Daikin representative.

Stop using the air purifier. To prevent product malfunction and unexpected problems, contact the place of purchase.

Did this solve your problem? If not, please contact your nearest Daikin representative.

Stop using the air purifier. To prevent product malfunction and unexpected problems, contact the place of purchase.

Did this solve your problem? If not, please contact your nearest Daikin representative.

Check if the air inlet or outlet is blocked.
If they are not blocked, the fan motor may be defective. Contact the place of purchase.

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Check if the unit is operating without some of the following parts: pre-filter, air discharge grille, dust collecting filter, humidifying filter air, humidifying tray, or water tank.
If any of those parts are not installed, the fan may stop operating in order to prevent damage to electrical parts. If any of those parts are not installed, unplug the power cord, install the parts correctly, and then operate the unit.

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• Check if the product is set up at a location where it cannot distribute air throughout the room. Check if there are any objects nearby that are blocking the product.
  Place the unit at a location from where air can flow freely throughout the room.
• Are the pre-filter and dust collecting filter clean? If they are dirty, clean them.

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• The target humidity may not be reached when the humidity in the room is low, when the wall/floor materials in the room are dry, or when the room is not well-sealed.
• Check if a heater is operating to warm the room. If the room temperature is increasing due to a heater or other reason, the humidity setting can decrease.
• Check if the size of the room in which the product is larger than the product is designed for?
• Check if the humidity setting is set to LOW. Check if the air flow rate (fan) setting is set to LOW.
  Set the humidity setting (HUM SET) to "CONT" and increase the air flow rate (fan setting).

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• The product is a vaporization-system humidifier. The water level decreases slowly on a humid or cold day.
• When the product operates with the humidity setting at "Automatic," the humidifying operation stops when the humidity in the room reaches the target humidity level of the humidifying operation.

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Stop using the air purifier. To prevent product malfunction and unexpected problems, contact the place of purchase.

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Check if the dust collecting filter is installed correctly.
If the filter is not installed correctly, the unit may produce a loud sound.

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The hissing sound is produced by the Streamer unit during Streamer discharge. The sound may become quieter or changes to a crackling sound, buzzing sound or slurping sound depending on usage conditions. Those sounds do not indicate a malfunction. If the sound disturbs you, try placing the unit at a different location.

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• Are Unit 1 (plasma ionizer unit) and Unit 2 (streamer unit) installed correctly?
  Push in Unit 1 until a clicking sound is produced. Push in Unit 2 all the way for secure installation.
• Check if Unit 1 and Unit 2 are adhered with dust. If they are dirty, clean them.

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The splattering sound is produced by water splashing on the humidifying filter.

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The soft growling or rumbling sound is generated by the rotation of the humidifying filter unit during humidifying operation.
If the sound disturbs you, try placing the unit at a different location.

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The bubbling sound may be generated by the supply of water from the water tank to the humidifying tray.

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The clicking sound may be generated by the motor for the humidifying filter unit turning ON/OFF to START/STOP the humidifying operation.

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• Are the deodorizing filter, humidifying filter and humidifying tray clean? If they are dirty, clean them.
• Discard residual water from the humidifying tray each time you fill the water tank.
• When the product is not used for humidifying operation, discard water from the water tank and humidifying tray.
• Check if the unit was moved from another room.
  The odor from the product may be the odor of the room where it was used before. Operate the unit for a short period of time.

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Are the pre-filter, air outlet grille, dust collecting filter, humidifying filter unit, humidifying tray and water tank installed correctly?
Be sure to install them correctly.

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• Check if the unit was tilted before.
  If the unit is tilted, water may spill. When moving the unit, discard water from the water tank and humidifying tray.
• Is the cap on the water tank tightened firmly?
  If the cap is loose, water may leak. Tighten the cap firmly.
• Check the water scale to see if the humidifying filter has collected a large amount of water. If a large amount of water has been collected on the humidifying filter, water may leak. Clean the humidifying filter.

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Check if the lamp brightness setting is set to OFF. If it is set to OFF, the front panel indicator lamp does not light.

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If water moves around in the humidifying tray, the float moves up and down. This causes the water supply lamp to turn on and off repeatedly. Fill the water tank with water.

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• Is the humidifying tray installed securely?
  Push the tray all the way into the unit until a clicking sound is produced.
• Check if water scale has collected water that prevents the float in the humidifying tray from moving freely.
  Remove water scale with a brush.
• Check if the float in the humidifying tray is detached. Install the float correctly.

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• Was there a strong odor when the power cord was connected to the AC outlet? The product sets the reference sensitivity level of the odor sensor based on the odor detected during the first 1 minute or so after the power cord is connected to AC outlet. Operate the unit until there is no odor in the room, and then stop the operation, unplug the power cord, wait for more than 5 seconds, and then connect the power cord again. This resets the reference sensitivity level of the odor sensor.
• If the concentration of odor remains consistent regardless of its intensity, the sensor may not detect the odor even if the odor is strong. The sensor may not detect certain odors such as pet odor (other than ammonia smell) and garlic odor. Increase the air flow rate.

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The Streamer unit does not need to be cleaned or replaced.

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The active plasma ionizer does not need to be cleaned or replaced.

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The dust collecting filter cannot be cleaned. Do not use a vacuum cleaner or wash it with water to clean the dust collecting filter. If the filter becomes very dirty, replace it with a new filter.

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Even if the filter becomes black, the dust collecting performance is still the same. If you do not like to use the blackened filter, replace it with a new dust collecting filter (sold separately).

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If water is left in the water tank for an extended period of time, bacteria can grow and change the color of water. Replace the water in the water tank on a regular basis and clean the water tank and humidifying tray.

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The product can operate continuously for 24 hours without any problem.

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Discard water from the water tank and humidifying tray, clean the product, and let the inside of the unit dry thoroughly in the shade. Cover the product with a plastic bag to prevent dust from entering the air outlet, and store the unit in a dry place. Keep the unit upright during storage.

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Before using the product only for air purification, discard water from the water tank and humidifying tray, clean the product, and let the inside of the unit dry thoroughly in the shade. The product can operate for air purification even if the water tank is empty.

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Even when the unit operates only for air purification, air draft causes natural evaporation of water and slight humidification results. Thus, the water level in the water tank decreases. If the product is used only for air purification, discard water from the water tank and humidifying tray before operating.

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Do not put any of the following water in the water tank:

• Water treated by home water filtration system, ionized alkaline water, mineral water (including hard water), well water. They can promote fungus/bacteria growth.
• Warm/hot water (40°C or higher), aroma oil, chemicals, dirty water, water containing fragrance or detergent. They can cause deformation of the unit or equipment malfunction.

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Dismount the outlet grille, water tank, humidifying tray, etc., and remove the entered object. Note that the active plasma ionizer unit (located on the side opposite from the water tank) cannot be disassembled by the user. Contact the place of purchase.

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• Check if the product is placed within a distance of 2 m from the TV and radio. Check if the product is placed near the indoor antenna.
• Check if the product is used near the power cords and antenna cables of the TV and radio.
  Keep the air purifier as far away as possible from the TV, radio and antenna.

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Wires need to be replaced. Contact the place of purchase.
Do not replace the wires yourself.

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The scorching marks are caused by streamer discharge. They do not denote a malfunction.

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