Introduction

If your Sonicare feels like it lost it's power it could be because of a misalignment of the magnetic motor, e.g. after a fall. Philips built it like this on purpose and you need open the toothbrush and realign the magnetic motor.

Caution: Please only proceed if your toothbrush is out of warranty. If you still have warranty: bring it back and get it fixed by Philips.

Tools

Parts

No parts required.

  1. First you need to open the toothbrush. This can be achieved by applying pressure to the lower end and removing the bottom plug.
    • First you need to open the toothbrush. This can be achieved by applying pressure to the lower end and removing the bottom plug.

    • It is highly recommended to protect the toothprush from the tool that is applying the pressure, e.g. with cardboard.

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  3. Once you have the insides out, you have to look for this area.
    • Once you have the insides out, you have to look for this area.

    • The silver red part are the two magnets and between the magents and the silver Driver there needs to be a gap.

    • If your magnets are directly touching the driver or are very close to them, please proceed with the next step.

  4. The magnets are secured by two screws. One is easily accessible on the back of the toothbrush.
    • The magnets are secured by two screws. One is easily accessible on the back of the toothbrush.

    • As you can see the hole for the screw has specifically been cunstructed to have some margin. I don't understand why but if the screw has moved to the top of the brush, the Magnets might touch the driver which reduces the motion and power of the brush significantly.

    • Loosen the screw on this side.

  5. Apply some pressure to undo the logic board and get access to the screw holding the magnets on the front side.
    • Apply some pressure to undo the logic board and get access to the screw holding the magnets on the front side.

    • If is has moved, loosen the screw, pull down the magnets in order to create a gap between magnets and driver and retighten both screws.

  6. another reason if the brush sounds weak.
    • another reason if the brush sounds weak.

Conclusion

Arbeite die Schritte in umgekehrter Reihenfolge ab, um dein Gerät wieder zusammenzubauen.

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moritz

Member since: 01/11/2017

909 Reputation

1 Guide authored

39 Comments

Hi there, this was my problem combined with the loose actuator screw. Mine works great now. I used a credit card as a spacer between the magnets and windings, do you know if more space is necessary for the best performance?

Clys - Reply

Saved me ~$100! Awesome!

chip - Reply

Good manual, I could fix the gap between the magnets. However, that was not the problem in my toothbrush. After pressing the power button the light for the selected program flashes once and after that all flash on and the toothbrush shuts down. It refises to start anything, it's almost as of there is a counter for the maximum amount of charges.

Jan Huijsmans - Reply

saved me from buying a new toothbrush, thanks!

Diederik Knaapen - Reply

Have the same question as Clys.Wish I could know the correct gap measurement.I also used a credit card,which measured .9mm.Maybe 1mm is the correct gap.I know that if I contact Philips the chances of reaching anyone knowing anything would likely be impossible.If I bought a new brush,took it apart,that would be a way of finding out.

jrj90620 - Reply

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