Home / After Sales / FAQS

FAQS

Information is provided here for resolving trouble in operation centering on residential-use air conditioners. Although all situations are not covered in this section, answers to the most frequently asked areas are provided. To save time and trouble, we recommend that you refer first to this page.

 
 
Split/Multi-Split
 
 
Air Purifiers
 
 
Others
 
 
 
 
  • > The air conditioner does not cool or heat the room well.
    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.

  • > Warm air does not flow immediately after starting the heating operation.
    This is not a malfunction of the air conditioner. The air conditioner is warming up. Please wait for about 3 minutes.

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

  • > The air conditioner does not operate. (The operation lamp is off.)
    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?

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

  • > The air conditioner does not operate. (The operation lamp flashes.)
    Unplug the power cord or turn off the circuit breaker. Wait for about 1 minute, and then turn on the power. If the operation lamp flashes, contact the place of purchase.

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

  • > The ON/OFF button on the main unit or remote controller does not work.
    Stop operation, unplug the power cord or turn off the circuit breaker, and contact the place of purchase.

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

  • > The air conditioner does not operate immediately when the unit is turned on during or after filter cleaning operation.
    The air filter is returning to normal position. Please wait for about 3 minutes.

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

  • > The air conditioner does not operate immediately when operation is restarted immediately after stopping, or the operation mode has changed.
    This is not a malfunction of the air conditioner. This is to protect the air conditioner. Please wait for about 3 minutes.

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

  • > The air conditioner does not operate immediately when dry or cooling operation is activated.
    When dry or cooling operation is activated with the auto fan speed setting set to ON, the SMELL PROOF operation starts and removes stagnant odor from the indoor unit before air is discharged. Therefore, the unit does not discharge air immediately after the operation starts. Please wait for about 30 to 40 seconds.

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

  • > Operation stops unexpectedly. (The operation lamp is on.)
    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.

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

  • > The unit turns on and off repeatedly. (The operation lamp is on.)
    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.

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

     
  • > The air purifier does not operate when the ON/OFF button is pressed.
    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.

  • > The air purifier does operate when it is switched ON.
    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.

  • > The air purifier does not operate when it is switched on after the installation of front panel.
    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.

  • > When the power cord is moved, the product sometimes stops and starts.
    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.

  • > The air purifier does not discharge air.
    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.

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

  • > The fan stops during operation.
    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.

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

  • > The air purifier does not purify air.
    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.

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

  • > The air purifier does not increase humidity in the room.
    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).

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

  • > The water tank has water, but the product does not humidify.
    The water level in the water tank does not decrease. 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.

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

  • > The air purifier produces an abnormal sound or vibration.
    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.

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

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

  • > A hissing sound is produced during operation.
    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.

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

  • > A crackling or buzzing sound is produced during operation.
    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.

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

  • > A splattering sound is produced during humidifying operation.
    The splattering sound is produced by water splashing on the humidifying filter.

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

     
  • > Operation stops unexpectedly when ON timer is set.
    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.

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

  • > Operation stops unexpectedly. (The operation lamp on the main unit flashes.)
    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.

  • > Heating operation stops unexpectedly, and the sound of water flowing is heard.
    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.

  • > Air conditioning operation stops unexpectedly, and filter cleaning operation starts.
    (Then, the air conditioning operation restarts.) When the auto filter cleaning setting is ON (default), the air conditioning operation stops after 24 hours of air conditioning operation (cooling mode, dehumidifying mode, heating mode, air purifying mode, or ventilation mode) to activate the automatic filter cleaning operation. After the cleaning operation is complete, the air conditioning operation resumes.

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

  • > Filter cleaning operation does not stop.
    The air filter is returning to normal position. Please wait for about 1 to 3 minutes.

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

  • > The air conditioner continues to operate even when the dehumidifying, dry cooling, or cooling operation is turned off.
    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.

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

  • > The indoor unit produces an abnormal noise during operation.
    Stop operation, unplug the power cord or turn off the circuit breaker, and contact the place of purchase.

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

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

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

  • > A buzzing sound is produced.
    A buzzing sound may be produced when the flap moves.

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

  • > A soft growling or rumbling sound is produced during humidifying operation.
    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.

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

  • > A bubbling sound is produced during humidifying operation.
    The bubbling sound may be generated by the supply of water from the water tank to the humidifying tray.

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

  • > A clicking sound is produced during humidifying operation.
    The clicking sound may be generated by the motor for the humidifying filter unit turning ON/OFF to START/STOP the humidifying operation.

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

  • > There is an odor at the air outlet.
    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.

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

  • > The unit sputters water from the air outlet.
    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.

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

  • > There is water spilled on the floor.
    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.

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

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

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

  • > The water supply lamp lights.
    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.

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

  • > The water supply lamp lights even after supplying water.
    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.

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

  • > There is an odor in the room, but the dust sensor lamp lights (green).
    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.

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

  • > How do I clean the Streamer unit?
    The Streamer unit does not need to be cleaned or replaced.

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

  • > How do I clean the active plasma ionizer?
    The active plasma ionizer does not need to be cleaned or replaced.

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

  • > How do I clean the dust collecting filter?
    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.

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