DC40 Multi Floor
DC40 Multi Floor upright vacuum cleaner

Contact us

The Dyson Helpline is available during the following times (CST):

Monday – Friday: 8am – 8pm

Saturday: 9am – 6pm

Closed on Sunday

Please note our US Helpline will close at 1pm on Saturday, October 10th for planned maintenance. Please email us at questions@dyson.com. Our Digital Support team responds to emails 24 hours a day.

  • 1-866-MY-DYSON
  • questions@dyson.com
  • Dyson Inc. 600 W. Chicago Ave, Suite 275, Chicago, IL

Where is the serial number located

The serial number can be found under the wand handle or on the main body, behind the clear bin (e.g. XXX-XX-XXXXXXXX).


diagram showing where the serial number is located.


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