Clutch failure and/or a failed brush roller bearing, usually occompanied by a loud ratcheting noise. We see alot of these. If you still have the warrenty in effect for your Dyson, take it to a Dyson repair center. If not, call around to your local vac repair shops and ask if they can replace the clutch. Expect a repair cost of at least 75 dollars. The replacement process is a bit involved for a person who hasn't done it before, and there are special Dyson tools needed to do it properly.
Help Aorund the House
June 2006
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix vacuum cleaners.