⟐ Commented January 09, 2023 at 18:18 MST

But I push the button can't turn on it.But put into the cup can charge the battery.

So how do I to check the board or more action?

thanks

⟐ Commented May 20, 2023 at 3:25 MST

Rubber button is in perfect condition. Clicky as always and works 100% time if lights are on.

It's exactly 3 years old.

Also it seems it's more difficult to take it off the charger but if it's in "working mode" it will charge normally, maybe something about the magnet.

What can I do?

⟐ Answered July 23, 2024 at 14:40 MST

⟐ Answer edited July 14, 2024 at 6:04 MST

⟐ Commented June 04, 2023 at 7:50 MST

However, there is one remaining issue which results in a lot of noise. The triangular shaped part where the metal head is attached using a screw is rotated as shown in the image below (red arrow points to rotated triangular shaped part):

This is due to an issue "lower down" in the toothbrush where the metallic driver (blue arrow in image below) - which is directly connected/linked to the above mentioned "triangular shaped" part - is rotated as well.

By forcing quite a bit I can rotate it back to "normal" position, however, as soon as I switch on the toothbrush the whole thing gets stuck again in the rotated position.

My two possible explanations so fare are that a) the magnetic force in the two magnets has somehow changed which results in a rotation or b) there was some abrasion or similar on the surface of the metallic driver which results in this rotation.

Any ideas on how to fix this would be highly appreciated!

So the outer case is a hollow shell with an end piece. There is no electrical contact, presumably a current is induced in the coil to recharge the battery. As you can see from the attached video all is ok when the case is on. Thanks for taking an interest.

⟐ Commented September 01, 2023 at 7:44 MST

I looked up a video to fix my Phillips Sonicare toothbrush that was rattling. The actuator screw had come out completely which was the original issue. However now after reassembly the toothbrush won’t turn on, but it still blinks when I plug it in as if it’s “charging”. It also vibrates slightly when I try to turn it on or change the mode when it’s on the stand. It’s a model 5100.

I checked the voltage of the battery and it’s reading 3.6 volts, and I used it just before taking it apart, so I don’t think the battery is the issue. I’ve also looked over the toothbrush thoroughly and don’t see any disconnected wires, corrosion, or other obvious issues.

Any ideas why it isn’t powering up? Is it possible that it won’t power on until it’s completely charged up again in the charger? Any help would be appreciated!

I have a Sonicare DiamonClean HX9350. When I press the power button, I get a very quick short vibration buzz and then the unit shuts off. This can be repeated indefinitely. The unit is over 7 years old so I suspect it may be time for a battery. However, I don’t necessarily want to buy a battery if that isn’t the issue.

The unit flashes as if the battery is full when put on charge, but I know that isn’t an indication of battery capacity.

I already have the unit apart. There was a little moisture inside so I’ll probably want to replace the seal or shaft, but I don’t see any corrosion.

I’m more or less wondering if anyone has seen this symptom…

Thanks!

⟐ Commented January 08, 2021 at 10:29 MST