Hi Laura I'm sorry you're having difficulties. This is a question that would probably be better answered in a more conversational way. Depending on where the sound comes from will greatly influence the answer. The worst case scenario is that it is the motor which is making the noise, in which case service attention would be required to inspect and diagnose the issue.
I would recommend that you give the Dyson Helpline a call on 1-866-693-9766 (US), 1-877-397-6622 (CA). Our experts will be happy to talk you through some further diagnostic checks when you have your machine easily to hand. All the best, Allan
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