Dyson makes loud noise

try changing the filter. could be it is coming apart and making the noise. Also sometime these hoses will tear on the inside (lining of hose) and make a flapping or knocking sound. Check the hose as well.

sucked up something, turn off, take apart, get ''something'' out, put together again, try, will work

Hi there,

I'm sorry to hear you're having difficulties with your DC33. The brush control is designed to make a ratcheting sound to warn you if something is obstructing the brushbar. If you've checked the cleaner head and brushbar already, I'd encourage you to get in touch with us directly as we'd appreciate the opportunity to provide further assistance.

You can call us on 0800 298 0298 (UK), or 1-866-693-9766 (US) - please have the machine to hand when you call so we can run through some troubleshooting over the phone with you.

We'll look forward to hearing from you.

Best wishes,

Jack
Dyson Online Customer Support
http://www.dyson.com

Check the tips of the beater bar. I "bumped" mine to hard and broke a tip. Still worked! Just noisy. Called Dyson support and they sent me a new one no charge. Note. Mine had a loud whirring and a vibration.

It probably sucked something big up in it and it is stuck. Get a flashlight and turn the vacuum upside down and look and see if you can see anything you can chat with me and I can walk you through it

Possibly a belt problem, but more than likely a brushroll problem.
The bearings are cheap and nasty, and are prone to siezing.

If you visit http://www.sparesaver.com/help-and-support/dyson-section/dyson-technical-advice-450/ they have alot of info on repairing dyson cleaners AND they sell the parts, cheapest ive seen online.

Hope that helps

LOL do you mean when you move the vacuum forward (say into a baseboard)? it makes the loud shocking noise.. i hate that too.. but that's the crazy Warning sound indicating something is stuck (like you sucked up an area rug) or you have run into something and it set off a sensor.

This machine has a clutch assy. that slips and makes a loud noise
when something gets stuck in the roller brush. If you have nothing stuck in the roller brush chances are the clutch is worn and needs
replacing. Not an easy job and best done by a repair tech. You can find a video on youtube showing how to replace the clutch if you are
inclined to try to do it yourself.

Tom

You may need a new brush roll and clutch

This is the clutch as it jams up in the brush. Usually happens with rugs that are not secured to the floor.