I'm sorry to hear you're having a problem with your DMT300. Please check the installation, door seals, kick plate, and water spray arms inside the dishwasher to determine if a part has become loose and is vibrating. If the buzzing is accompanied by flashing lights on the control panel, please refer to the list of Information Codes on page 25 of the user manual. If you're still unable to locate the source of the buzzing and it is not related to an Information Code, please submit your contact information to our support team through the link below, or call 800-SAMSUNG to speak with an agent who will be happy to assist you.
Online support form:
http://www.samsung.com/us/support/o...- Ms. Samsung
answered 1 year, 3 months ago

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MsSamsung
SamsungHQ