“I have a Waterpik flosser WP-462W. When I plug it in to charge it, it buzzes or hums loudly. I am afraid I will damage it or start a fire if I leave it charging overnight. I've tried different outlets and it does the same thing. Why is it buzzing?”

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• Sorry, I have not had that issue .No Buzzing on mine.

  Answered by CarlT 2 years ago

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• Hello MJ - We're sorry for the difficulty you've encountered. We would be happy to help, but we do need some additional information. Please email us at smreviews@waterpik.com or call (800) 525-2774 for assistance. Thank you!

  Answered by Joan reid 3 years ago

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