2 year warranty
Philips Support
My Philips Sonicare toothbrush makes a loud noise.
If your Philips Sonicare toothbrush makes a loud noise when you switch it on, there might be a very simple solution.
The information on this page applies to the following models: HX9903/01, HX9957/51, HX9903/41. Click here to show more product numbers ›
Frequently Asked Questions
Can I exchange points in the Philips Sonicare App?
How does the brushing guidance work in the Sonicare app?
Do I need an Alexa device to reorder replacement brush heads for my Sonicare?
How do I enable or disable the pressure sensor on my Sonicare?
How do I reorder Sonicare replacement brush heads with Alexa?
How do I disable the Sonicare brush head reordering service?
Can I sync the Sonicare app with the Apple Health app?
Which brush head fits my Sonicare toothbrush?
In which countries is the Sonicare app available?
What do the battery status lights indicate on my Sonicare toothbrush?
Why does my Philips Sonicare app requires permissions
Can I use my Sonicare toothbrush without the app?
How do I change the intensity settings on my Sonicare toothbrush?
Which devices are compatible with the Sonicare App / Sonicare for Kids App?
What do the symbols on my Sonicare toothbrush mean?
Can I replace the battery of my Sonicare toothbrush?
Why is there a gap between my brush head and handle?
How long should my Sonicare toothbrush battery last?
Can I use my Sonicare charger with other toothbrushes?
How do I register my Sonicare toothbrush?
What are the brushing modes for my Sonicare toothbrush?
Where can I purchase accessories for my Sonicare toothbrush?
How does the pressure sensor feedback work on my Sonicare toothbrush?
How do I charge my Sonicare toothbrush?
Can I use my Philips Sonicare Toothbrush in the shower?
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