Troubleshooting My Sonicare toothbrush vibrates less powerfull than before If your Philips Sonicare toothbrush is vibrating less powerful than before, you can often solve this yourself. Make sure that the toothbrush is fully charged. Disable the Easystart function The Easystart function on your Sonicare toothbrush might be activated. Disable the Easystart function for DiamondClean Smart toothbrushes: Place your DiamondClean Smart on the charger. Hold the mode/intensity button and press the power button once The handle will beep once to confirm it is disabled When the handle will beep twice, the Easystart function is enabled. Please make sure to disable again using the instructions above. Select the right brushing mode Try using different brushing modes and find the optimal brushing experience for you. Intensity settings Your toothbrush has different high, medium and lower intensity settings. Try using a higher intensity and find the optimal brushing experience for you. Replace your Sonicare brush head Older brush heads can seem less effective or powerful while brushing. If your brush head has been in use for more than 3 months, we recommend you to replace your brush head. A mechanical defect If did this not solve the issue, please contact us. Your toothbrush may be at fault.