My on off button won't stay pressed down so the vacuum won't stay running.

This is over a year too late, but perhaps this will help other people in your situation. Here is how the switch assembly should go together:

Where can I order the switch from?

Hi Patriccia,

I'm sorry to hear you're having difficulties with your Dyson's on/off switch. If the switch won't stay down when pressed, please call us free on 1866MYDYSON, or email [email protected] so we can provide further assistance. We'll look forward to hearing from you.

Kind regards,

Jack
Dyson Online Customer Support

The switch is broken. If you are handy, remove the old switch and match it up at a hardware store or a Vacuum repair shop. It shouldn't cost much to have it replaced by a proffessional either.

Hi there,

Sorry to hear you're having difficulties with your DC27. In case you haven't already tried this, make sure you press down firmly on the power switch when turning the cleaner on. If the switch still won't stay down, it's probably best if you get in touch with us directly. One of our experts will be happy to run through some troubleshooting over the phone with you, and recommend the best course of action. You can call us free on 08002980298 (UK), or 1866MYDYSON (US). We'll look forward to hearing from you.

Kind regards,

Jack
Dyson Online Customer Support

Quick Fix...takes 4 minutes max

Remove the switch by using instructions here:

http://www.sparesaver.com/vacuum-spares/help-and-support/dyson-section/dyson-technical-advice-450/dyson-dc14-technical-advice-474/replacing-the-cable.html

(The was an additional torx screw 3 " below the one in the directions...yours may have this too...just remove)

Then...While holding the body of the switch in one hand, use your other to hold both contacts between your thumb and forefinger and gently place pressure on each contact in the opposite direction, just like screwing a nut onto a bolt. Press the switch down while applying this torque and see if it sticks. If it does just bend the contacts slightly and continue pressing the switch to ensure it holds. Reinstall switch.

I still advise buying a switch from amazon for $4.00 and replacing it but this will help you to continue to use your vacuum in the meantime without having to hold the button...

Hi there,

Sorry to hear you're having difficulties with your DC24. If the on/off switch won't stay down, it's probably best if you get in touch with us directly. One of our experts will be happy to run through some troubleshooting over the phone with you, and recommend the best course of action. You can call us free on 08002980298 (UK), or 1866MYDYSON (US). We'll look forward to hearing from you.

Kind regards,

Jack
Dyson Customer Service

Hi there,

Sorry to hear you're having a problem with the switch on your DC07. Please get in touch with us free on 08002980298 (UK), or 1866MYDYSON (US), so one of our experts can advise the best course of action.

Kind regards,

Jack
Dyson Customer Service