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Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise

  1. Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise, Remove base plug: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise, Remove base plug: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • As other sonicare repair guides show, the base plug is only held in by friction. If you squeeze the sides it will open a gap you can slip a screwdriver in and lever out the base. A bit of cardboard protects the sides from cosmetic damage.

    • Have a look to an alternative opening procedure.

  2. Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise, release locking tabs: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise, release locking tabs: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • There are 2 tabs that prevent the insides sliding out. Release these with a small screwdriver while pushing the metal shaft at the other end, and when both tabs are free the innards will slide out.

  3. Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise, Tighten loose screw: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise, Tighten loose screw: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Phillips Sonicare 4300 (HX680C) - Fix Unpleasant Noise, Tighten loose screw: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • The screw circled was loose. Tightening this fixed the unpleasant noise. I had to use threadlocker to stop it coming loose again.

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To reassemble your device, follow these instructions in reverse order.

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William Keogh

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What is the size of that screw? Totally stripped mine

Screwstripper - crwdns2934203:0crwdne2934203:0

I believe I used a Phillips #1 on that screw. #0 seemed too small to me.

Caterwaul B. -

BTW, that Phillips #1 was on my HX686P (purchased as one of a pair at Costco in the US, which seems to be the same as an HX6829 when I try to look it up on Philips' website in their troubleshooter).

Caterwaul B. - crwdns2934203:0crwdne2934203:0

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