Troubleshooting and support
Philips Sonicare DiamondClean Smart Sonic electric toothbrush + 2 accessories and app
HX9917/89
HX992B
Selected colour
Black
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Manuals and Documentation
- User manual PDF file, 6.0 MB
07 October 2021 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - User manual PDF file, 8.3 MB
28 August 2024 - UK Declaration of conformity PDF file, 145.3 kB
21 August 2025 - Localised commercial leaflet PDF file, 567.9 kB
05 May 2025 - EU Declaration of conformity PDF file, 695.2 kB
21 August 2025
Frequently Asked Questions
- What do the battery status lights indicate on my Sonicare toothbrush?
- Can I replace the battery of my Sonicare toothbrush?
- How do I reorder Sonicare replacement brush heads with Alexa?
- Can I sync the Sonicare app with the Apple Health app?
- How do I disable the Sonicare brush head reordering service?
- Which devices are compatible with the Sonicare App/Sonicare for Kids App?
- Which brush head fits my Sonicare toothbrush?
- How does the pressure sensor feedback work on my Sonicare toothbrush?
- How can I recycle my Philips Sonicare Toothbrush?
- How do I enable or disable the pressure sensor on my Sonicare?
- How do I change the intensity settings on my Sonicare toothbrush?
- Do I need an Alexa device to reorder replacement brush heads for my Sonicare?
- In which countries is the Sonicare app available?
- How do I register my Sonicare toothbrush?
- Can I use my Philips Sonicare Toothbrush in the shower?
- What are the brushing modes for my Sonicare toothbrush?
- How does the brushing guidance work in the Sonicare app?
- How do I charge my Sonicare toothbrush?
- How do I connect my toothbrush to the Sonicare app?
- How do I brush my teeth using the Sonicare app?
- How to clean my Philips Sonicare toothbrush?
Parts and Accessories
Troubleshooting & repair
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