Are you having trouble with your dco7 cutting out or over heating the first thing you need to do is test the motor before spending any money or throwing away your dyson.All you need to do is unclip the cyclone unit and the bin then take of both filters and then turn it on and run it for twenty minutes. If it runs with out cutting out or overheating you know that your problem is most probly with the filters that need cleaning or changing or the cyclone unit is blocked and needs washing out.If you found this guide useful please tick the yes box thank you.