iFixit - Answers With Device "Electric Toothbrush"

Oral-B iO Series 6: Toothbrush splattering liquid as I brush

Thu, 11 Jun 2026 09:56:55 -0700

Sometimes as I am brushing, liquid (small splatters of toothpaste) flies out and gets on me , walls, floors, etc. I have tried cleaning the toothbrush well, but nothing seems to help

Philips Sonicare Toothbrush: Can you get mother board fuse for hx5390

Fri, 29 May 2026 02:21:31 -0700

Can you get mother board fuse for hx5390

OralB iO: Replacement battery .1 volt less than original.

Mon, 18 May 2026 08:53:03 -0700

Original battery labeled 3.7 volts. Replacement battery labeled 3.6 volts. Will that be an issue?

Oral-B iO Series 3 Type 3769: Braun Oral B io3 type 3769 Not rotating, only vibration

Thu, 12 Feb 2026 07:29:27 -0700

Should my toothbrush rotate as it only vibrates?

Please advise?

OralB iO: Internal cylinder broken and lost

Wed, 21 Jan 2026 09:31:12 -0700

The internal cylinder fell off and I lost it. Is it possible to replace it? Here is a comparison with a working one.

Oral-B iO Series 5 Type 3776: The brush is not working

Sat, 03 Jan 2026 09:11:59 -0700

The brush first started to work and turn off by itself without touching it the I charge it after that it doesn’t work at all and when I put on the charger it didn’t light or charge

Oral-B Type 3710: My toothbrush charges only on one outlet, most of the time.

Tue, 07 Oct 2025 22:29:45 -0700

I am on my third BraunOral B rechargeable toothbrush. My toothbrush charges well at home in my bathroom. It usually keeps a charge for about 4 days of brushing twice a day. When I travel, I take my charger with me. I have found, though, that my toothbrush does not charge in most places. It will lose its charge on the fourth day and although I move the charger to different outlets in the hotel room or the house, the toothbrush will not charge. Upon returning home I plug it in to its regular outlet and it charges fine. I plugged it into a battery and it showed that the charger was not pulling any power, yet worked like a champ when I got home. How can I fix this problem?

Electric Toothbrush: Philips Sonicare DiamondClean Smart, Vbat+ and Vbat- short circuit

Tue, 15 Jul 2025 10:22:38 -0700

I have Philips Sonicare DiamondClean Smart hx9918, it stopped working after I left it charging for a while, so I disassembled it, removed battery and measured resistance between Vbat+ and Vbat-, and it was about 34 Ohm, which indicates some failure in circuitry. Likely has to do with power related circuitry. Does anyone have a schematic guide, or where I can measure with multimeter/scope to identify problematic IC/component so I'd replace it? I believe I had standard warranty of 1 year, which is gone already. In any case, I'd like to repair it myself.

In the picture, circled are Vbat+ and Vbat- nets.

Oral-B Plak Control Ultra Type 4713: Can't get the on button to stay engaged.

Sat, 28 Jun 2025 10:21:34 -0700

How do you keep the ON button to stay engaged? As soon as I let go the unit stops.

Braun Oral-B Type 3765: It is working normally, but it won't be charged at all.

Fri, 25 Apr 2025 21:51:04 -0700

Hello,

I bought this Oral-B electric toothbrush about two to three years ago. It has been one of the most valuable gadgets I've owned.

Last week, I put the brush on the iPhone's wireless charging pod during my business trip since I didn't bring the Oral-B original charger

When I put the brush on the phone charger, the LED lights of the brush were on, and it looked like charging.

However, the LED lights turned off after about 5 to 10 seconds on the charging pod, but the brush was still working normally."

After I came back home and connected the brush to the original Oral-B charging pod, there was no response at all.

By the way, I cross-checked the original charging pod with another brush, and it is just fine.

In my opinion, the charging system of the brush could be damaged.

Link: https://photos.app.goo.gl/qtPJvXpQGDujMR...

Can I get some help in here?

Thanks,

Ryan.

Philips Sonicare CleanCare HX3200: The brush head has gone so loose

Fri, 14 Feb 2025 09:13:26 -0700

The brush head has gone so loose

insmart water flossar model yxy-801: My Insmart water flosser is not turning on?

Fri, 07 Feb 2025 18:00:19 -0700

All the mode lights work when selected. The power button does not light up or start. I would like to take it apart and see if the soldered connections are all in tact. I wasn't able to find much more information on this. There is no reset button or ways to change back to factory settings.

OralB iO: Charges Only After charger is unplugged and re-plugged

Thu, 03 Oct 2024 11:28:26 -0700

Why does the battery only charge after the charger is unplugged and then re-plugged in to the wall socket?

Philips Sonicare Toothbrush: Sonicare battery replacement without desolding it

Sat, 07 Sep 2024 01:14:28 -0700

Hello

Is there others Sonicare models like protective clean 6500 where you don't have to desold the battery ?

Thanks

OralB iO: The On button working

Mon, 05 Aug 2024 11:23:37 -0700

My io is fully charged but not switching on via button

Electric Toothbrush: Philips Sonicare - Head shaft screw and washer replacement

Fri, 14 Jun 2024 16:05:23 -0700

Hello.

I just took apart my Philip Sonicare HX680C toothbrush in order to tighten the head shaft screw, as it has been very loose lately - common complaint. To my surprise, however, when I opened the toothbrush, the screw and washer that are supposed to be there have seemingly vanished entirely. With my micrometer nowhere to be found, would anyone be able to tell me what the appropriate dimensions of the screw and washer? Thanks!

Philips Sonicare DiamondClean: What magnetic motor assembly model is compatible with HX960K?

Wed, 24 Apr 2024 02:26:19 -0700

What magnetic motor assembly models are compatible with the Philips Sonicare model HX960K? I cant seem to find any replacement motor assembly parts compatible for this model only other models.

Electric Toothbrush: Dead, but sometimes starts up and works for a second on two

Wed, 28 Feb 2024 11:20:15 -0700

Hi,

I have an IO (not sure which model but has the LCD display) which stopped working completely. Sometimes you press the button and it starts up, you see the intro animation for a second or two and then dies again, usualy doesn't do anything for a few hours after that when you press the button again.

I took it apart and the battery seems fine (3.8V), the button itself is also working. I wonder if this is a known fault and if it's realistic to try and fix it, or if it's going to be one of these microcontrollers or just any one of the tiny countless unlabelled resistors/capacitors and I'm better off just throwing it in the bin.

Thanks

Oral-B Black 7000: My oral b 7000 with blue tooth is flashing on the led bluetooth only

Sat, 06 Jan 2024 22:51:32 -0700

before i replace the battery i was already flashing on the bluetooth led only. after replacing a new battery it is still flashing on the bluetooth led. there is no charge cycle. it just keeps on blinking the the bluetooth area. is this the end of its lifecycle??? it dont even turn on

⟐ Commented January 06, 2024 at 22:51 MST

OralB iO: Looking for spare part OralB iO

Tue, 05 Dec 2023 02:05:55 -0700

excellent guide, but I have another problem, followed the instructions instead of the battery I discovered that the cylinder inside the copper windings was completely broken, how do I buy that piece?

⟐ Edited December 05, 2023 at 2:05 MST