iFixit - Answers With Device "Braun Oral-B Toothbrush"

Braun Oral-B Triumph 9900: Is my 3757 Oral B toothbrush repairable? On button doesn't work

Fri, 19 Dec 2025 13:26:43 -0700

Yesterday my 3757 Oral B toothbrush worked fine; it was fully charged. This morning it worked briefly, then turned off, and finally the on button doesn’t work at all. I don’t know the age of this product—is it repairable?

⟐ Commented December 19, 2025 at 13:26 MST

OralB iO: The grey drive cylinder came out of the toothbrush — is it repairable?

Wed, 03 Sep 2025 07:13:55 -0700

The grey drive cylinder came out of the toothbrush — is it repairable?

⟐ Commented September 03, 2025 at 7:13 MST

Oral-B Black 7000: Runs down and stops in about a second

Tue, 11 Nov 2025 14:41:06 -0700

My toothbrush runs down and stops in about a second. I fixed the problem a few months ago by unsoldering and then resoldering the battery. I have checked the battery voltage during the switch on, slow down and stop phase and it remains constant at about 3.7V so there would seem not to be a problem with the battery. When the problem occurred before I found that bypassing the MOSFET caused the motor to run normally at full speed, so this seems to be a microprocessor issue. I have tried resetting the brush by holding the power button for ten seconds. There is no water inside.

⟐ Commented November 11, 2025 at 14:41 MST

Oral-B White Pro 1000: Does anyone have details regarding dismantling & replacing batteries.

Sat, 04 Feb 2023 16:12:08 -0700

We have two of the Oral B electric toothbrushes both of which need replacement rechargeable batteries. As the devices are obviously waterproof is there any way to dismantle them?

⟐ Answered February 04, 2023 at 16:12 MST

Oral-B Black 7000: Is the Pressure Sensor Broken?

Fri, 26 Jan 2024 22:50:28 -0700

The pressure sensor on my toothbrush seems to be broken, it gives constant red light even though the head isn't pressed to anything. Oral-B have asked me to clean the metal pin with warm water to clean up toothpaste build and drain the battery and recharge it again for 24 hours to fix. It doesn't work. Any fixes?

⟐ Commented January 26, 2024 at 22:50 MST

OralB iO: Why it doesn't charge properly?

Fri, 11 Apr 2025 16:51:52 -0700

It seems to be charged. It syncs, and it shows on the app to be fully charged. Then it stops working and back to 0

⟐ Commented April 11, 2025 at 16:51 MST

Oral-B White Pro 1000: Why does motor comes on but brush head does not move

Tue, 05 Oct 2021 01:17:19 -0700

Brush head does not when motor activates

⟐ Commented October 05, 2021 at 1:17 MST

Oral-B iO Series 4 Type 3794: I dropped my toothbrush and it won't turn on anymore

Fri, 24 Oct 2025 12:23:14 -0700

Hi there, are there any tips on troubleshooting what the issue could be?

⟐ Answer edited October 24, 2025 at 12:23 MST

OralB iO: Where can I source small repair parts? The neck gasket specifically

Wed, 21 Feb 2024 22:10:00 -0700

The seal below the metal ring on my io is split so water gets inside the body of the toothbrush. Can I buy a replacement for it? Or is there some other kind of repair I have to do instead involving silicone sealant or something?

⟐ Commented February 21, 2024 at 22:10 MST

Oral-B Vitality: The timer does not work on the toothbrush. How can I fix it?

Wed, 04 Aug 2021 13:03:15 -0700

We bought our boys this the OralB Vitality toothbrushes for Christmas. The timer does not work, we have to turn them off manually. Can the timer be set or reset?

⟐ Commented August 04, 2021 at 13:03 MST

Braun Oral-B Triumph 9900: How to replace a lost charger

Thu, 18 Oct 2018 14:26:29 -0700

I've lost my charger.

How can I get a replacement?

⟐ Answer accepted October 18, 2018 at 14:26 MST

Oral-B White Pro 1000: Brush base metal head holder broken

Wed, 11 Mar 2020 18:38:41 -0700

Hello,

I have an Oral B Pro 1000 brush and the base of the brush where you put a new battery head in, snapped and broke. Any way I can replace and fix it?

Oral-B Professional Care Type 4729: Brush starts but won't shut off until relplaced in charger(switch?)

Thu, 17 Jul 2025 08:45:14 -0700

Oral B sonic starts and charges but won't shut off until replaced in charger

⟐ Answered July 17, 2025 at 8:45 MST

Braun Oral-B Type 3771: order a replacement battery for my

Tue, 13 Jan 2026 19:18:46 -0700

How do I order the replacement battery for my type 3771 oral b toothbrush

⟐ Answered January 13, 2026 at 19:18 MST

Oral-B Triumph V2 Type 3764: Where can you get Battery 3764 replacement?

Mon, 03 Nov 2025 20:34:05 -0700

Where can you get a replacement battery?

⟐ Commented November 03, 2025 at 20:34 MST

Braun Oral-B Type 3767: Oral B 3767 turning on for around 1 second then turning off

Wed, 23 Jul 2025 17:15:31 -0700

I've had this toothbrush for the past 5-6 years and a few days back I had an issue where the toothbrush turns on for around 1 second then turns back off. If I press the power button again it won't do anything, then around 12 hours later if I press the power button it does the same thing (turns on for 1 second).

I was reading online and owners of other oral b tooth brushes were saying it might be a fuse that needs to be reset. Does anyone know if this toothbrush has it and if so where I could find it?

In case it's not the resettable fuse does anyone have any suggestions as what a possible fix could be for this? Any help would be appreciated, thank you.

⟐ Commented July 23, 2025 at 17:15 MST

Braun 3746 toothbrush: How to replace the battery

Fri, 02 May 2025 01:47:55 -0700

How to remove the battery

⟐ Answer edited May 02, 2025 at 1:47 MST

Oral-B Professional Care Type 3756: Replacement of the battery

Fri, 02 May 2025 01:42:31 -0700

Replacement of the battery

⟐ Marked as duplicate May 02, 2025 at 1:42 MST

Oral-B Vitality: The motor is spinning but the head doesn't move

Mon, 04 Dec 2023 07:33:52 -0700

Hi,

I noticed this tiny lead screw had probably fallen from its place:

Any idea how this mechanism works and how to disassemble/fix the head, it's still new.

Edit: actually it's not a lead screw, it's a pin with a spring, I tried pushing it up but it's not.

Thanks.

⟐ Commented December 04, 2023 at 7:33 MST

Oral-B White Pro 1000: Red light appearing on the top

Wed, 01 Jan 2020 02:52:14 -0700

There is a red light that is appearing at the top. Does that mean a battery needs to be charged? If so how do I find it?

⟐ Answered January 01, 2020 at 2:52 MST