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    Philips Support

    How to handle Air Purifier Air Quality Indicator not turning Blue cases

    Published on 2022-04-07

    Air purity indicator is not changing color / not turning in blue

    • Please clean pre filter with dry brush / vacuum cleaner.
    • Clean air quality sensor.
    • Reset the Filter.
    • Check filters are placed in correct direction ( All filters are having numbering and direction tags on it – make sure tag is placed in front direction)
    • If PM2.5 level is more than 150 use product in highest fan speed / turbo mode.
    • Try to close all the doors / windows while operating the air purifier.
    • Check sensitivity mode (Applicable to ac4014 to ac4372 only )…. Keep product in standard mode.
    • Check packing material (polythene ) is removed from all filters .

    How to reset the Filter

    Attachment - How to reset the Filter

    How to change sensitivity

    Attachment - Changing Sensitivity

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