Our recommendations are independently selected and dentist-approved. We may earn a commission if you buy something. Why trust us?

Philips Sonicare Troubleshooting & Common Issues

Philips Sonicare Troubleshooting Header Image

We are not Philips Sonicare, nor are we affiliated with them.  

We are not a service centre and do not repair or replace toothbrushes.

Whilst we will offer what support we can, we cannot provide answers for all problems.

Contacting Sonicare directly will always be your best option.

Philips Sonicare contact number: 1-800-682-7664

Monday – Sunday 9:00 AM – 6:00 PM EST

Or use other contact options here.

Has your Philips Sonicare electric toothbrush stopped working?

Is it not behaving as you would expect?

Perhaps it is making more noise than normal.

Maybe it is not charging or the handle is beeping at you.

This article offers answers to the more commonly experienced issues with Sonicare electric toothbrushes.

All being well you will find the answer you need to resolve the issue.

If consulting this page or the user manual for your product does not resolve the issue, or you determine the brush requires repair or replacement, contact Philips Sonicare on 1-800-682-7664.

Most products come with a 2 year warranty from Sonicare. Providing the fault falls under warranty terms, this should be resolved for you. In most cases this will be a free of charge repair or replacement.

Products outside of the warranty period will not be eligible for repair or replacement by Sonicare, but their customer support team may still be able to provide some assistance depending on the fault.

Sonicare toothbrush won’t stop blinking

  • Green blinking/flashing light.
    • The battery is in the process of charging.
    • The light will turn a solid green or go out when complete.
  • Amber or yellow blinking/flashing light.
    • The battery power is very low and requires charging.

Handle beeps

Sonicare handles use beeps as a way of notifying you of certain things going on.

Most typically:

  • 1 beep.
    • The process of activating or disabling the Easy-Start system has begun.
  • 3 beeps.
    • Normally accompanied by a flashing amber light, to highlight the battery is low and needs recharging.
  • 2 sets of 5 beeps.
    • The battery is empty and requires recharging.
  • 2 beeps when placed on charger.
    • This is to confirm that the charger has detected the handle and is beginning to charge the brush handle.
  • 1 beep and then 2 beeps.
    • The process of activating or disabling the brush head replacement reminder system has begun.
  • 1 beep, 2 beeps and then 3 beeps.
    • The process of activating or disabling the pressure sensor has begun.

Sonicare vibrates on charger

  • When placing a Sonicare toothbrush onto a charging stand that has already been connected to the power supply the handle will usually vibrate quickly once or twice as well as produce 2 beep sounds to confirm it is now charging on the stand.
  • This is normal behaviour.

Handle not turning on/does not work at all

  • The power button is stuck.
    • Toothpaste residue can build-up in the small gap around the power button. This can cause the button to get stuck and not function correctly.
    • Clean the power button and surrounding area with a damp cloth to ensure it is clean and free of debris.
  • Correct button used?
    • If the handle has 2 buttons, ensure the correct button is being pushed.
    • The mode button will not turn the toothbrush on, only the power button.
  • Is the toothbrush charged?
    • If the battery icon indicates that the battery is flat or low on power, it may require charging before it will turn on.
  • Any noise coming from the handle?
    • Turn on the toothbrush with a brush head attached and place the handle near your ear. If you hear a soft humming sound, it is likely that a fault has occurred that will require you to contact Sonicare for warranty support
  • Is the metal shaft in place?
    • With the brush head removed check if the metal shaft that extends from inside the handle. Is it loose or does it come out of the handle? If it does contact Sonicare for warranty support.
  • Has it been dropped?
    • If a toothbrush has been dropped or taken a very hard knock, it is possible that the battery connection inside the handle has been damaged.
    • The connection is usually a small solder connection between the +/- terminals of the battery that connects this to the main printed circuit board.
    • Cracked solder joints can, in theory, be repaired. However, the Sonicare handles are not designed to be opened up by users. Doing so will invalidate your warranty and may even render the brush broken for good.
  • Has it gotten wet?
    • Whilst the brush is designed to resist water prolonged exposure or submersion in water may lead to water ingress inside the handle.
    • Any physical damage to the handle will likely increase the likelihood of any water having impacted the internal electronics.
    • Water can cause corrosion, staining and crystal formation on the circuit board rendering the brush no longer functional.
  • Check for firmware updates
    • If you are using a smart toothbrush, note that it gets software updates when connected to the app. This happens through firmware updates. Some of these updates improve charging capability.
    • Follow these steps to check if you have the latest firmware installed on your toothbrush handle:
      • Update (or download) the latest version of the Philips Sonicare app from the App Store or Google Play.
      • Open the Philips Sonicare app
      • Tap on the menu icon in the top left corner
      • Go to ‘My Products’
      • Select your toothbrush
      • Select ‘Handle update’ to see if any updates are available
      • If you have updates available, please update the firmware of your handle by following the instructions from the Philips Sonicare app.

Handle does not hold charge/cuts out quickly after starting

  • Turn the toothbrush off and place on charge for a full 24 hours before attempting to turn it on again.
  • Turn the toothbrush on with a brush head attached. Slowly place the handle onto the charging stand (connected to power).
    • The handle should turn off, confirming it is performing normally.
    • If the handle stays on there is likely a problem with the charging stand rather than the handle.
    • If the handle turns off, but the issue continues, there is likely a fault with the handle that requires repair. Contact Sonicare.
Philips Sonicare Troubleshooting & Common Issues 1

Handle does not charge

  • Handle is not fully charged.
    • Place your handle on the charger. If you see the battery indicator light blinking or if you hear a beep it means it is charging.
    • Fully charge the Sonicare handle for 24 hours.
  • Not using the original charger.
    • Make sure that you use the original charger that came with your Sonicare toothbrush.
  • Socket is not working.
    • Try another appliance in the same power outlet/socket and see if that works. If that is also not working the issue might be with that socket. Try an alternative outlet.
  • Has it been dropped?
    • If a toothbrush has been dropped or taken a very hard knock, it is possible that the battery connection inside the handle has been damaged.
    • The connection is usually a small solder connection between the +/- terminals of the battery that connects this to the main printed circuit board.
    • Cracked solder joints can, in theory, be repaired. However, the Sonicare handles are not designed to be opened up by users. Doing so will invalidate your warranty and may even render the brush broken for good.
  • Has it gotten wet?
    • Whilst the brush is designed to resist water prolonged exposure or submersion in water may lead to water ingress inside the handle.
    • Any physical damage to the handle will likely increase the likelihood of any water having impacted the internal electronics.
    • Water can cause corrosion, staining and crystal formation on the circuit board rendering the brush no longer functional.

If the issue persists, contact Sonicare.

Charging stand/charging base does not work

  • Any lights on the handle?
    • When a brush handle is placed on the charging stand do any lights flash/blink?
    • If yes, this would suggest the charging stand is functioning correctly.
    • If no, leave the handle on the charger for at least 1 hour and see if the lights are now flashing/blinking.
  • Handle warmth.
    • Is the base of the handle slightly warm after having been sat on the charging stand for a few hours. If so, this is usually a sign it is functioning correctly.
  • Power outlet/socket
    • Try another appliance in the same power outlet/socket and see if that works. If that is also not working the issue might be with that socket. Try an alternative outlet.
  • Turn the toothbrush on with a brush head attached. Slowly place the handle onto the charging stand (connected to power). The handle should turn off, confirming the stand is performing normally.
    • If the handle stays on there is likely a problem with the charging stand rather than the handle.
    • If the handle turns off, but the issue continues, there is likely a fault. Contact Sonicare.
  • Cables & damage.
    • Check the power lead cable to see if there are any cuts or damage. If so stop using for your own safety.
    • Has the charger recently gotten wet or been damaged in some way? If so, stop using for your own safety.
  • Try an alternative charger.
    • Does a friend or family member have a Sonicare toothbrush. If so use their charger to confirm if your brush charges on theirs.
    • If so, it will likely confirm your charger is at fault.

DiamondClean handle does not charge

  • Counters, shelves or any surface made of metal (for example, stainless steel, nickel, or iron) may interfere with the operation of the charger and prevent the handle from charging. Placing the charger glass on a different, non-metallic surface will allow the handle to fully charge. Be sure to charge your Sonicare for at least 24 hours before using again.

If the problem persists after repositioning then contact Sonicare.

Sonicare toothbrush handle turns itself on

  • If the toothbrush is turning itself on, without any interaction from you, then there is a fault with the handle that requires repair. Contact Sonicare.

Toothbrush handle turns itself off

  • Check the brushing mode selected.
    • Your toothbrush may come with different modes and settings. Once a mode is selected, the toothbrush works for a specific time period and then turns off automatically.
    • Here is an overview of possible modes and their timings:
      • Clean = 2 minutes
      • White = 2:30 minutes
      • Polish = 1 minute
      • Gum care = 3 minutes
      • Sensitive = 2 minutes
      • Gum health = 3:20 minutes
      • Tongue care = 20 seconds
  • Changes in vibration while brushing
    • Does the vibration of your toothbrush change momentarily while brushing, but still continues to vibrate? If yes, this means the time pacer or the pressure sensor is on.  
    • This feature indicates when you are supposed to move onto the next section of your teeth via a brief change in vibration. These changes are normal. The toothbrush will automatically turn off at the end of the brushing session.
Philips Sonicare Troubleshooting & Common Issues 2

What do the battery status lights mean?

Your Philips Sonicare toothbrush has smart ways of telling you when it is time for a recharge. The lights and beeps of your toothbrush indicate the charging behaviour.  

Some toothbrushes have only one indicator light, while others have three. Below, you can find what the indicator lights mean for each of these models. 

Note that some toothbrushes like the DailyClean 1100 model do not have a battery light indicator. In this case, just follow the normal charging advice as specified in the user manual. 

  • Toothbrushes with 1 indicator light
    • Toothbrush on charger
      • No lights – Fully charged and on sleep mode
      • Green or white light flashing – Charging
      • Solid green light – Fully charged
    • Toothbrush not on charger
      • Solid green light – Fully charged
      • Flashing green – moderately charged
      • Flashing amber light & 3 beeps – Low battery
      • Flashing amber light & 2 sets of 5 beeps – Battery empty
  • Toothbrushes with 3 indicator lights
    • Toothbrush on charger
      • No lights – Fully charged and on sleep mode
      • 1, 2 or 3 lights flashing – Charging
      • 3 solid green lights – Fully charged
    • Toothbrush not on the charger
      • 3 solid green lights – Fully charged
      • 2 solid green lights – Moderately charged
      • 1 solid green light – Low battery
      • 1 flashing amber light with beeps – Battery empty
  • Toothbrushes with battery shaped LED
    • Toothbrush on charger
      • No lights – Fully charged and on sleep mode
      • Flashing white or green light – Charging
      • Solid green or white light – Fully charged
    • Toothbrush not on the charger
      • Solid white or green light – Fully charged
      • Flashing white or green light – Moderately charged
      • Flashing amber light & 3 beeps – Low battery
      • Flashing amber light & 2 sets of 5 beeps – Battery empty

The metal shaft/adaptor on my handle is loose

  • Remove the brush head and see if the metal shaft on the handle is loose.
    • If yes, there is a fault with your handle. Contact Sonicare.
    • If not, check other troubleshooting advice.

The brush head does not move when the handle is turned on

  • Try removing the brush head and reattaching it.
    • For push on pull off heads
      • Align the brush head so that the bristles face the front of the handle.
      • Firmly press the brush head down onto the metal shaft until it stops. There is a small gap between the bottom of the had and the handle.
    • For screw on and off heads
      • Align the front of the brush head with the front of the toothbrush handle. match the bars that are on the inside top of the removable nut with the notches inside the top of the handle and slide the brush head onto the handle.
      • Screw the brush head nut clockwise until it is firmly tightened. If the brush head rattles when in use, tighten the nut further.
  • Remove the clear plastic travel cap from your brush head.
  • Charge your toothbrush for 24 hours and try again.

If the problem persists, contact Sonicare.

Handle does not vibrate

  • Without a brush head attached to the handle, a change in vibration pattern may well be difficult to detect.
  • Attach a brush head to the handle and turn it on to see whether this improves the situation.
  • Make sure the toothbrush is fully charged. Place the handle in or on the charger for 24 hours before turning it back on.
  • If the handle still does not vibrate it is likely the handle has a fault. Contact Sonicare.

Toothbrush does not vibrate as much as it did/weak vibration/has lost power

  • Make sure that your toothbrush is fully charged – give it up to 24 hours.
  • Did you recently purchase the toothbrush?
    • If so, a feature known as Easystart feature may be activated.
    • The Easystart feature gently increases power over the first 14 brushings to ease into the Sonicare brushing experience. If Easystart is activated, your brush may not seem to be as powerful as expected.
  • The Easystart feature on your toothbrush may have been activated.
    • To determine this, place the handle in a plugged charger base and press the on/off button firmly. If you hear one beep, the Easystart feature has been deactivated. When you use the brush in this condition the brush will be working at its full power level.
    • If you hear two beeps the Easystart feature has been activated, and you will feel less power. 
  • If your toothbrush has more than one mode of operation, you may have activated a different mode with a different brushing action or intensity.
    • Press the cleaning mode/intensity setting button to make relevant changes.
  • Old worn brush heads can also seem to be less effective or powerful in their rushing action.  
    • If your brush head has been in use for more than 3 months, it should be replaced with a new one.

If the problem persists contact Sonicare.

The vibration is too powerful

  • Change the cleaning mode.
    • If your toothbrush has the option to, you may wish to change the cleaning mode selected. Different brushing modes use varying amounts of power from the brush motor causing more or less intense vibrations at the brush head.
  • Adjust the intensity setting.
    • If your Sonicare toothbrush offers the option to choose between 3 different intensity settings, change the level set.
  • You can change between low, medium and high.
    • To change this, press the mode/intensity button (power button in some instances) to change the setting.
    • The level is usually indicated via 1, 2 or 3 LEDs on the brush handle.
      • 1 led = low
      • 2 led= medium
      • 3 led = high
Philips Sonicare Troubleshooting & Common Issues 3

The handle is very loud/noisy

  • Are you familiar with a sonic toothbrush?
    • The sound and vibration may appear odd because you are not familiar with the sound that it makes, particularly if this is your first electric toothbrush.
  • Check that the brush head is attached correctly.
    • A loose brush head may result in increased noise being generated.
    • If no brush head is attached it will likely sound louder.
  • If certain modes the toothbrush will sound louder, and if the highest level of brushing intensity has been set, this will increase the pitch of the sound.
  • Brush head could be worn.
    • If the brush head has been used for more than three months, you might need to replace the brush head. As they wear out the may produce more noise.
  • Genuine Sonicare brush head?
    • If you are not using a Sonicare manufactured brush head it may make more noise than an original.

If you feel the sound is still too loud, contact Sonicare.

Quadpacer/30 second/20 second timer does not work any more

  • The timer may have been disabled.
    • To reactivate the Quadpacer: press and hold the Personalised Brushing button for 5 seconds until you hear 2 beeps. This indicates that the Quadpacer is active again.
    • To deactivate the Quadpacer: press and hold the Personalised Brushing button for 5 seconds. You hear 1 beep to indicate that the Quadpacer has been deactivated.

Brush head falls off toothbrush handle

The common causes and solutions are as follows.

  • The brush head is not attached properly. Try removing the brush head and reattaching it.
    • For push on pull off heads
      • Align the brush head so that the bristles face the front of the handle.
      • Firmly press the brush head down onto the metal shaft until it stops. There is a small gap between the bottom of the had and the handle.
    • For screw on and off heads
      • Align the front of the brush head with the front of the toothbrush handle. match the bars that are on the inside top of the removable nut with the notches inside the top of the handle and slide the brush head onto the handle.
      • Screw the brush head nut clockwise until it is firmly tightened. If the brush head rattles when in use, tighten the nut further.
  • The brush head or handle is dirty.
    • Make sure that the bottom of the brush head and the areas around the shaft are clean and free of grime or debris.
    • You can clean your brush head and the metal shaft with lukewarm water of a soft cloth.
  • Incorrect brush head type.
    • Are you using a brush head compatible with your Sonicare toothbrush?
    • If you are not using a manufacturer original, do so to see if the issue continues.

If the issue persists, contact Sonicare.

I can’t connect my Sonicare tootbrush to the app

  • Sonicare App update
    • Ensure that you have the latest version of the Sonicare app installed on your smartphone.
    • Visit the app store on your smartphone and check for and install the latest updates.
  • Smartphone software update
    • Check to see if you have the latest operating system running on your smartphone.
      • Android smartphone that runs on Android 6.0 and higher.
      • iPhone that runs on iOS 11.0 and higher.
  • Not using the compatible toothbrush.
    • The Sonicare app is only compatible with the following connected toothbrushes:
      • DiamondClean Smart
      • Flexcare Platinum Connected
      • ExpertClean
      • DiamondClean 9000
      • for Kids (Only compatiable with Sonicare Kids App)
  • Toothbrush is not on
    • Turn on your toothbrush by either removing it from the charger or pressing the mode button.
    • The lights on the handle will illuminate to tell you that your toothbrush is turned on.
  • Toothbrush is not charged
    • If this is a new toothbrush, and your first time trying to connect to the app, ensure that the toothbrush handle is fully charged. 
  • Bluetooth is not on or pairing
    • Check to see if the Bluetooth on your smartphone is turned on before opening the Sonicare App. If not, go to the settings on your smartphone to turn on Bluetooth.
    • If it still does not connect, try to reset your Bluetooth network on your smartphone. Use below steps to clear the cache of your Android or iPhone device:
      • Clear Bluetooth cache on Android
        • Go to Settings
        • Select ‘Application Manager’
        • Press ‘More’ or the 3 dots in the upper right corner
        • Select ‘Show system apps’
        • Select ‘Bluetooth’ or ‘Bluetooth share’
        • Select Storage
        • Tap ‘Clear Cache’
        • Restart your phone
        • Try to connect again following the steps on the Sonicare App
      • Clear Bluetooth cache on iOS
        • Go to ‘Settings’
        • Select ‘Bluetooth’
        • Make sure that Bluetooth is on
        • Under ‘my devices’ tap the ‘info icon’ next to the toothbrush
        • Select ‘Forget this device’
        • Try to connect again following the steps on the Sonicare App
  • Other devices are interfering
    • Keep your Philips Sonicare Toothbrush away from other Bluetooth devices as this may interfere with the Bluetooth pairing.
Philips Sonicare Troubleshooting & Common Issues 4

Activate/disable the brush head replacement reminders on BrushSync enabled handles

  • Place the handle in/on the charger.
  • Press and hold the power button for up to 5 seconds.
  • Let go of the power button when you hear 1 beep and then 2 beeps.
  • If you see the battery indication blink white 2 times and hear 3 tones from low to high, then the feature has been activated.
  • If you see battery indication blink white once and hear 3 tones high to low, then the feature has been deactivated.

For DiamondClean Smart

  • Place the handle in/on the charger.
  • The brush head replacement reminder is enabled by holding the mode/intensity button and by pressing the power button three times while on a charger.
  • The handle will beep twice to confirm it is enabled.
  • The brush head replacement reminder is disabled by holding the mode/intensity button and by pressing the power button three times while on a charger.
  • The handle will beep once to confirm it is disabled.

Activate/disable the pressure sensor

  • Place the handle in/on the charger.
  • Press and hold the power button for up to 5 seconds.
  • Let go of the power button when you hear 1 beep, 2 beeps and then 3 beeps.
  • If you see the battery indication blink white 2 times and hear 3 tones from low to high, then the feature has been activated.
  • If you see battery indication blink white once and hear3 tones high to low, then the feature has been deactivated.

For DiamondClean Smart

  • Place the handle in/on the charger.
  • The pressure sensor is enabled by holding the mode/intensity button and by pressing the power button twice while on a charger.
  • The handle will beep twice to confirm it is enabled.
  • The pressure sensor is disabled by holding the mode/intensity button and by pressing the power button twice while on a charger.
  • The handle will beep once to confirm it is disabled.

Activate/disable Easy-Start

  • Place the handle in/on the charger.
  • Press and hold the power button for up to 3 seconds.
  • Let go of the power button when you hear 1 beep.
  • If you see the battery indication blink white 2 times and hear 3 tones from low to high, then the feature has been activated.
  • If you see battery indication blink white once and hear 3 tones high to low, then the feature has been deactivated.

For DiamondClean Smart

  • Place the handle in/on the charger.
  • The Easy-start is enabled by holding the mode/intensity button and by pressing the power button one while on a charger.
  • The handle will beep twice to confirm it is enabled.
  • The Easy-start is disabled by holding the mode/intensity button and by pressing the power button once while on a charger.
  • The handle will beep once to confirm it is disabled.

Your Comments

Do you own a Sonicare that has a fault? What is the problem?

Have you had problems with your toothbrush in the past? What was the problem and the solution?

Let us and others know by leaving a comment below.

About Jon Love

Jon is a leading voice on electric toothbrushes and has been quoted by mainstream media publications for his opinions and expertise.

Having handled & tested hundreds of products there really is very little he does not know about them.

Passionate about business and helping others, Jon has been involved in various online enterprises since the early 2000s.

After spending 12 years in consumer technology, it was in 2014 that he focused his attention on dental health, having experienced first-hand the challenge of choosing a new toothbrush.

Read More

Leave a comment or question

83 thoughts on “Philips Sonicare Troubleshooting & Common Issues”

  1. Diamond clean Smart is a big waste of money! Heads are too big and the sensitive one that can be purchased at a store is not soft at all. Messy and loud this apparatus ripoff. Not good for small mouths and teeth. The travel case does not charge. You have to use the ugly, big, heavy, bar room glass then placed upon a big metal base. The toothbrush leans while charging. This is ridulous for travel or for being near a bathroom. Until I find someone who wants this $200 waste for free, it’s staying in my garage to clean the steps’ tile grout. The $17.00 battery Oral B Precision Clean swapping on a soft sensitive Oral B head is doing a superior job with less noise and mess. It fits so much better in small mouths and drain space and money stays in your pocket. BTW, you will wish you are dead trying to get a Customer Service call through. They auto-hang up and there web site and marketing materials are conning and evasive.

    Reply
  2. HX9120 when placed on charger, the leftmost led at the bottom of the handle flashes green twice, then yellow once. Each flash is accompanied by a loudish buzz.
    (firmware is utd)
    Please advise!

    Reply
    • The brushes usually buzz/make a confirmation sound when they are placed on the charger. If the brush is not appearing to charger thereafter (battery icons will flash), then get in touch with Sonicare for further advice Norman.

      Reply
  3. I put my sonicare tootbrush in the charger and all the lights on the tootbrush rapidlly blink. It does not charge. It is toothbrush
    HX9120.

    Reply
  4. Just bought a Sonicare 4100 and when I try to deactivate the Easy-Start by pushing the power button whle it’s in the charger, it makes a loud vibration noise (like the thing is brushing) and I never hear a beep. What am I doing wrong?!

    Reply
    • Hi Jan.

      Have you been following the steps listed below to deactivate Easy Start?

      1. Put the handle on the plugged-in charger.
      2. Press and hold the power on/off button while the handle remains on the charger.
      3. Keep the power on/off button pressed until you hear a single short beep (after 2 seconds).
      4. Release the power on/off button.
      – Triple tone of low-med-high means the EasyStart feature has been activated. The brush head replacement light and battery light will also blink green 3 times in unison to confirm activation.
      – Triple tone of high-med-low means the EasyStart feature has been deactivated. The brush head replacement light and battery light will also blink amber 3 times in unison to confirm deactivation.

      Reply
  5. My sonicare acts like it’s charging but keeps vibrating in Morse code. Even when I take it off the charger.

    Reply
    • Andra,

      This sounds like something isn’t quite right. The brush will likely need to be repaired/replaced under warranty if it is still within its warranty period.

      Your best course of action is to contact Philips Sonicare. Their contact number is: 1-800-682-7664 Monday – Sunday 9:00 AM – 6:00 PM EST

      Or use other contact options here.

      Reply
  6. I have black mold inside my sonicare toothbrush cap. I’ve tried letting it dry before recapping it. It helps some, but not completely. What else can I do?

    Reply
    • Are you putting the cap onto the brush head after you have used the brush head each time? So the toothbrush bristles are still wet?
      Have you tried soaking the cap in a strong detergent to clean it?

      Reply
      • I’ve been leaving the cap off for a while; maybe I should let it off longer. I haven’t checked to see if the bristles are wet.

        I’ll try soaking the cap.

        Thanks for your suggestions and your prompt reply.

        Reply
        • Hi Chris.

          Whilst the cap does allow air to get in and around the bristles, it can restrict the airflow.

          I personally don’t put a cap on my brush head unless traveling. I just keep it out of the ‘splash’ zones in bathrooms.

          The longer you keep the cap off, the more chance the bristles/head has of drying out.

          I suspect the bristles are still damp when the cap it applied, and as such the damp builds up in the cap.

          Reply
  7. My dental hygienist says buy a cheaper sonicare unit and start using it…thus began a search….but I see units costing $35 up to $300. They advertise their special features…enamel, tarter, polish, but who knows if this is bogus or not… And when I started reading reviews there were many people that complained that their toothbrush died shortly after purchase. I wanted to know what was inside…the motor…and whether it was different in the different models… so I started looking on Youtube ways to repair and dismantle the sonicare. Then I came upon this article…. https://www.powerelectronictips.com/teardown-whats-inside-a-phillips-sonicare-electric-toothbrush/

    This was a wonderful explanation of the inner workings….what I’ve concluded is that the electromagnet to magnet system is pretty universal in each unit…it’s really the circuit board and the processors that are different….

    Anyway, I feel pretty sure that when mine craps out…a sonicare HX9944 which is really a 9300 head unit…that I could take it apart and repair it cheaply….

    Reply
  8. Hi Jon, excellent site….hard to get accurate information on this purposely marketed item.

    I also found for example this site on youtube https://www.youtube.com/watch?v=o3PBPU2jXbo

    where the sonicare is taken apart which I found most interesting. You can’t always bring something back to sonicare, most of the time they will leave you wanting.

    Reply
    • Thanks for sharing. I have seen this video before. It is good that people demonstrate this and have a go.

      People just to be aware of the implications of doing this themselves.

      Reply
  9. After the initial brushing when it says almost clean it would show me the spots I missed and give me the opportunity to touch them up. Now it says almost clean and goes straight to did you floss. Why can’t I do touch ups anymore?

    Reply
    • Kristi. Are you referring to one of the Sonicare smart toothbrushes with the smartphone application?

      I suspect this is to do with the app configuration and the time you have been using it. I am not aware of a way around this, other than going back after the session and brushing the areas that you missed.

      Reply
  10. I have had Phillips Sonicare Electric toothbrush for yrs.
    All of a sudden recently, the handle does NOT work even when placed in charger for several hrs.
    Does the handle, HX9140 have a battery inside to be replaced, battery must be dead. If so, what kind??
    I have several brush heads to use for this model. What should I do
    ??

    Reply
    • Hi Rita.

      Sorry to hear that your trusty toothbrush has failed. It does have a rechargeable battery inside. I am afraid I cannot advise specifically what model of battery or where you might source such.

      The brush heads you have should be compatible with a newer model. I think it is quite likely a new model will be more cost effective to source over and about finding a battery and repairing it.

      Reply
  11. I can not get my Sonicare Diamond tooth brush to change modes. It is stuck in “clean” mode. Any suggestions? I do have a Sonicare toothbrush head on it and I have changed it. I held it on the base for 2 seconds trying to reset it. It did not work.

    Reply
    • Melody. I am sorry no suggestions here. Probably best to get in contact with Sonicare and see if they have a suggestion. Please do share with me what resolution, if any you get.

      Reply
    • In most instances Amy it should just pull off. That is unless you have the Sonicare E Serries/Essence where it unscrews. If you can’t get it off, try running it under reasonably warm water for a minute as this can often loosen it.

      Reply
  12. I have used a Flexcare plus for years. It seems the handle only lasts about a year. Then it gets to a point where it begins to stall or strain while brushing my teeth. The company replaced it a couple times but I’ve had to buy new ones a couple times. The one I have now just started doing the same thing.

    Reply
    • Thanks for sharing your experience Judy. This sounds a little frustrating. Do you think the issue is something to do with the motor/electronics inside?

      Reply
  13. My unit is a little older. I just recently traveled without the base, returned home and put the unit on the charger and the base started intermittently buzzing. Cant figure out how to stop it. Thanks for any advice.

    Reply
  14. My toothbrush syncs with the Sonicare app and I can see my progress while brushing on the app but when I finish brushing it does not track it as part of my daily brushing. The issue started on Sunday 12/27/2020.

    Reply
    • Hi Ken.

      Thanks for the comment. I have had a couple of people suggest issues with connectivity and data syncing to the app over the last few days. I suspect (although not entirely sure) that there might be a bit of an issue with the app/system at the moment, that I suspect will likely be fixed in the coming days. However, you may want to speak to Sonicare directly to see if this is definitely the case.

      Reply
  15. Sonicare app on iPhone has stopped showing daily progress. I have deleted and reinstalled app several times and still will not show daily progress. I have Philips Sonicare DiamondClean Smart 9300 Rechargeable Electric Toothbrush, White HX9903/01. How do I fix this?

    Reply
    • Hi Timothy,

      How long has this problem been going on?

      Are you running the latest version of the app? I presume so. It should be 9.1.2.

      When in the app, if the brush connects (but does not transfer data) are there any updates for the brush handle itself showing within the settings?

      Reply
    • Teresa. Which DiamondClean model do you have? Is it the Smart that connects to the smartphone? If so, have you opened the app and make sure they are communicating?

      Reply
        • Thanks for this info Teresa.

          What is happening now within the app? Does it show the brushing data from the last day or so? Does it appear to be connecting? Have you tried any troubleshooting yourself?

          Reply
            • Teresa, It would appear a couple of others have reported similar issues.

              I suspect (although not entirely sure) that there might be a bit of an issue with the app/system at the moment, that I suspect will likely be fixed in the coming days. However, you may want to speak to Sonicare directly to see if this is definitely the case.

              Reply
  16. When my toothbrush is fully charged, the three lights on the bottom of the handle go off. My daughter has the same toothbrush and when hers is fully charged, the bottom three lights on the handle remain on. So what is the correct way the lights should work? Stay on when fully charged, or turn off when fully charged???

    Reply
    • From memory Laverne I think they stay on. But it is possible after an extended period of time they may go out. Is your daughters toothbrush the exact same model? It could be if made at different times they have been configured differently?

      Reply
      • Jon, thank you for your response. The toothbrushes were purchased at the same time and from the same place, that is why it is so odd that they do not work the same. The model numbers are HX6972/31 and the handle number is HX6960. I had a Philips Sonicare for several years prior to purchasing my new one and the three lights on the bottom of the handle always remained on. Perhaps this new toothbrush is defective???

        Reply
        • Thanks for the extra info. That is odd.

          With the model number I have double checked the user manual which confirms that 3 green LEDS means fully charged.

          Whilst it is odd they do not behave the same, I am not overly concerned. I would have thought had there been any significant battery issues you might have found out from your use so far.

          Despite this, I think it would be worth a call or chat with Sonicare for extra piece of mind and to get a final answer on the matter.

          Reply
  17. My sonicare hx6211 started to behave strange lately. After being completely charged it dies not work more than 1 minute, but sometimes it works only 30 sec.
    The most intriguing is the fact that if I push removabke head firmly to the metal shaft of the handle it will work, but once released, it stops vibrating. It is like head is not sitting on the shaft deep enough. But I put it there all the way.

    Reply
  18. The brush head stopped vibrating all of a sudden 3 days ago.

    I followed the troubleshooting steps above:
    – Checked the charge and charged it for a whole day
    – switched with a new head
    – tried both settings of Easystart

    Not sure what to do next. Please help.
    Thank you very much.

    Reply
    • Hi Hamza.

      If you have followed all the directions then I think it will be necessary to contact Sonicare for further support. My guess is that the brush will need repair, something with the mainboard is likely wrong.

      Philips Sonicare contact number: 1-800-682-7664 (Monday – Sunday 9:00 AM – 6:00 PM EST)

      Or use other contact options here.

      Reply
      • Thank you so very much for the quick reply, Jon.
        I went ahead and contacted them last night and they sent me a replacement for the handle.

        Reply
  19. I have been using the Sonicare toothbrush for more than 5 years. It seems not vibrating as strongly as it used to. I keep it on the charger when I am not using. It is time to replace?

    Reply
  20. Hi,

    I don’t know if this question has been addressed..I didn’t see it in the commonly experienced issues. I have a SoniCare toothbrush with a brush head icon on it. The brush head icon is slowly blinking amber. The model # is HX628P. Thank you

    Reply
    • Hi Bryant.

      What I believe you are reffing to is the brush head replacement reminder that makes up part of the Brush Sync technology your handle has. Whilst normally it is a solid light, the flashing could indicate that you need to replace the brush head.

      Reply
      • I have just replaced the brush since the head replacement reminder is always slowly blinking amber. But after I replace the head, it still doing so

        Reply
        • If the handle detects a new head correctly the amber light should stop flashing. This is because the chip should have registered with the handle as a new head not previously used before.

          I am assuming the new head is a BrushSync compatible head?

          It might be worth a chat with Sonicare directly on this matter as I am not sure what to advise.

          Reply
  21. My Philip’s Sonicare toothbrush has within the last week started randomly turning itself on and when it finally turns itself off, it does it again within a short period of time. Last night it did this 3 times. I finally had to take it to a different room in order to not hear the loud noise in order to get some sleep. What is the problem? It has not been dropped or submerged in water or anything like that.

    Reply
    • Hi Donna.

      I am not qualfied to say precisely what the problem is. I think it is related to the switch in the handle.

      Others have had this issue and I believe got them replaced under warranty.

      It will be best if you contact Philips Sonicare on: 1-800-682-7664 Monday – Sunday 9:00 AM – 6:00 PM EST

      Or use other contact options here.

      Reply
  22. Hi, my sonicare handle keeps vibrating while charging. I noticed a couple of weeks ago that activated itself while nobody was using it.
    Now I can’t leave it on the charger because it keeps vibrating

    I would appreciate some help. Thanks

    Reply
    • Hi Diego.

      This sounds like the brush will need to be repaired/replaced under warranty if it is still within its warranty period.

      Your best course of action is to contact Philips Sonicare. Their contact number is: 1-800-682-7664 Monday – Sunday 9:00 AM – 6:00 PM EST

      Or use other contact options here.

      Reply
  23. By brush is turning on and off by itself and when I let the battery run down and put it on the charge it vibrates every second or so. It has worked for almost 2 years with no issues.

    Reply
  24. My Sonicare, HX751V (from Costco-less than a year old) was working perfectly fine until two days ago. I got the charging beeps, so put it on the charger. ALL the lights on the brush started flashing every second, the battery one flashing orange. I left it on the charger since I didn’t know what to do. The battery light did turn green eventually, but all the lights are still flashing and making a faint buzz noise every time they light up. If I press the power button, the toothbrush does not turn on, rather, all the lights start strobing. The brush has stopped making beeping sounds when put on the charger. The charging base is fine, my husband’s brush is charging normally. I can’t find any troubleshooting about all flashing lights, let alone strobe lights…while interesting to see in a dark bathroom, it’s not getting my teeth clean. Any ideas? Thanks!

    Reply
    • Hi Anita.

      I have not come across any troubleshooting for strobing/flashing lights. I think this is going to be one you need to contact Sonicare about. I suspect it needs to be replaced.

      Philips Sonicare contact number: 1-800-682-7664 Monday – Sunday 9:00 AM – 6:00 PM EST

      Or use other contact options here.

      Reply
  25. My Sonicare toothbrush no longer seems to operate properly. Even after 24 hrs of charging, at the conclusion of the 2 minute brush cycle, the handle stops vibrating then gives a long beep followed by “three” short beeps. There is nothing that I can find regarding the one long beep followed by “three” short beeps. Can this be resolved?

    Reply
    • I am inclined to think this is a battery issue Lawrence. I am not sure how old your brush is and whether it is within warranty, but I think it may be on its way out.

      I would get in contact with Sonicare if I were you, to see if they have any suggestions or explanations. Contact details can be found at the top of this post.

      Reply
    • Hi Antonia.

      Many Sonicare brushes will beep when they are first placed on the charger, to signal that the brush has been detected and charging.

      This is constant with your toothbrush/charger combination?

      Does it stop once the brush is taken off the charger?

      Is the battery completely flat in the toothbrush?

      If left on the charger for 30-60 minutes does it stop?

      Reply
  26. I have the Sonicare hx8910, it seems dead, when I put it on the charger, it beeps… 1 yellow flash then 2 green flashes. I fully charged a week ago started using and within days stopped, was out of town so I’m home trying to charge, it is doing the constant beeping & flashing. This last week it would turn on & off without being touched. Is there any fix?

    Reply
    • Sara. Something definitely sounds wrong there, particularly if turning on and off without being touched. I would contact Sonicare on 1-800-682-7664. They may have some suggestions, but I think it is going to need repair or replacement.

      Reply
  27. the brush handle has become very loose i tried removing it from the handle and reattaching it but that does not help the steel rod that the brush is attached to is very loose what can i do yto fix the problem

    Reply
  28. Hi there. My wife and I have been long time users of Phillips Sonicare and we buy Phillips brush head replacements from Costco (a 6 pack).

    We have noticed in this last batch that the nylon bristles are falling out soon after use. We typically replace the heads every 3 months, but the bristles are falling out after only 1-2 weeks use.

    Was there a manufacturing issue that will be resolved? We don’t have a lot number that we can provide because we threw away the packaging.

    Thanks

    Reply
    • Hi Dave.

      Were you by any chance using a coconut oil based toothpaste?

      This can cause the bristles to come loose from the head.

      If you were using a more regular toothpaste, then it would be a little strange and point to a manufacturing defect. However, I am not a Sonicare representative nor affiliated with them. I suggest giving them a call on 1-800-682-7664 and explain the issue. All being well they can investigate and potentially replace them for you.

      Reply
  29. My brush is doing crazy things it won’t turn on but beeps and buzzes. I have 2 different charging ports both original. I have tried both with same results of handle just buzzing and beeping at me with different patterns of buzzing beeping. On the bottom of handle say hx6950 100420. Please help.

    Reply
    • Those beeps and buzzing are likely the alerts that the battery is low and needs charging. With 2 charging stands, both of which you have tried it with, it would seem as if the brush is no longer charging.

      How long have you left the brush on either charging stand? Longer than a couple of hours?

      Reply
  30. My lights all stay on when off charger on a 6500. The unit wont turn on. When in charger battery light blinks. Take off charger all type of clean lights stay on.

    Reply
    • Hi Tom.

      Has the brush been dropped at all?

      What feedback are you getting from the button? Does it feel normal or is it potentially looser or feels different when you press it?

      What happens when you press the cleaning mode button?

      Reply
  31. Hi
    Having problem my Sonicare is hard to remove from charging station. I have to hold the charging station to remove it, if not I pick up the entire charging station with the brush.

    Thanks

    Reply
    • Hi.

      This is not a problem I have had anyone ask about before.

      Which Sonicare toothbrush do you have?

      Are the handle and the charging stand clean and free of debris?

      Have either become damaged in any way that could be affecting the fit of the brush on the stand?

      Reply
Leave a comment