Over heats and shuts off, wont start again untill it cools off. can maybe vacuum one room before overheating. cyclone tubes are all clean, all hoses & lines are clear. this vacuum is fairly new, not used much. cant find a reset button. is the moter dirty of something?

clean the hose very well that is sure to fix you problem I repair vacuums for a living this is very common do not use it again until you clean the hose really well stick a pole to a broom all the way through the hose and rinse the filters in hot water and let them air dry and it will run like normal when you push the broom stick through the hose it will free it of any debris if this does not work it is trash

I cleared a blockage at the tip of the tube which I had noticed...it had not heated up or anything, I just noticed it was not picking up well, so I cleared it out. but after I cleaned it out, it would not start again. I don't know how to diagnose the problem since it will not start...could be the wire, or anything. So how do I proceed now?

If it was running for a while... It may be overheating. It has a reset: http://www.ehow.com/how_5943288_reset-dyson-vacuum.html

But maybe just let it cool for an hour or two and try it again?

With the cleaner on. move the cable where it enters the cleaner through a rubber grommet. There is a common fault with these cleaners that the cable breaks at that point. soon the cleaner wont work at all until it is rewired.

Have you tried starting it again? It might have stopped because it overheated and now that it has cooled it should start again. If not, then possibly the power switch or power cord has failed.

The electric motor inside your Dyson has a built in over-current trip to protect itself (and you if it seriously overheated and caught fire). This normally automatically resets itself, however if the motor has just about had it, next time it is switched on it just trips again.

The primary cause of motors overheating is that the filters are not cleaned or replaced frequently enough. Dont be fooled by Dyson's "lifetime filters". They need to be regularly cleaned and replaced when necessary.

Replacement motors are available on eBay for about £25, however replacing one requires good DIY skills and tools.

Have a look at www.dysonmedic.com and see if you feel you can tackle it yourself. If not, take it to a repair shop or call the Dyson helpline.

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The most common cause of a cut-out is that the cleaner has a blockage or the filter needs washing. A high room temperature may also trigger it. Before you continue vacuuming, ensure the filter is clean and there are no blockages. You can download the user guide at www.dyson.co.uk/support/. Just click on ‘Get Expert Help’ then ‘Using my Dyson product’ then ‘User Guide’.


Hope that this information is useful to you.


Kind regards
Darran
Dyson Customer Service

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Most Dyson cleaners have a thermal cut-out to protect the motor from overheating in the event of a restriction to the airflow. So, if anything causes it to overheat, it will switch off. If this happens, leave the cleaner switched off for at least two hours, as it will not start again until it has cooled down.
The most common cause of a cut-out is that the cleaner has a blockage or the filter needs washing. A high room temperature may also trigger it. Before you continue vacuuming, ensure the filter is clean and there are no blockages. You can download the user guide at www.dyson.co.uk/support/. Just click on ‘Get Expert Help’ then ‘Using my Dyson product’ then ‘User Guide’.

The motor has a protective overload cutout device to stop it from over heating - this can be caused by a blockage of some sort in the hose or brushroll compartment or blocked filters.
After checking the above and it still cuts out, take it back under gurantee

There will be a filter between the cylinder/bag and the engine. If your vacuum has a HEPA filter there will be one on the other side of the engine. Remove both of these and clean them out with water, allow to dry and replace.