I just got a DC50i for the bargain price of £25 last night with two on board tools
I had a DC50 Animal about 2 weeks ago and it was great, then sold it. Worked brill on all my flooring with no problems. When I used this DC50i, the brush cuts out every 15 secs or so, so I stand it upright and recline it again to get it working again to reset it. This could also be done when switching the brush off and then on too.
It isn't the loom because when I move the vacuum at different vacuuming angles there's no cutting out, just when I use it on the floors it only runs for about 15 secs.
Btw the brush spins perfectly fine by hand! No hair etc in the brush.
Also, When I try to use it for actual vacuuming, (I mean long term so I force it to work by constantly resetting the brush) it would have to cut out about 10 times before it realises it's gotta work, so after cutting out on numerous occasions it works brilliantly after that.
I thought I had fixed it till I left it overnight and used it in the morning, same thing again! It goes round in circles
I have no idea if it's the motor or whatever