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    Philips Support

    My Philips Sonicare AirFloss makes a whistling sound

    Published on 11 September 2023
    If your Sonicare AirFloss makes a whistling sound, the troubleshooting tips below may help you find a solution. 

    We recommend you follow the steps in the order listed below. In between steps, check to see if the issue is resolved before moving to the next. 
    On the back of your AirFloss is a small air vent in the reservoir hatch. If the air vent is clogged, it will reduce the water flow. A clogged air vent is causing a whistling sound. 

    To clean the vent, follow the steps below:
    1. Take a damp/moist paper towel or cotton swab.
    2. Wipe along the inside edge of the reservoir door opening, especially on the top area.
    3. Rinse well with cold tap water and ensure no debris/dust is left.
    Philips Sonicare Airfloss reservoir door
    It could also mean that the nozzle is worn. We recommend replacing the nozzle every three months. You can purchase a new nozzle in our online store.
    If none of these tips help, your AirFloss may be damaged internally. We recommend that you request a repair or exchange for your AirFloss.
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