Re: LOUD GRINDING NOISE ALL OF A SUDDEN , LOOSE BELT ?
You will probably have a faulty roller bar take of panel on bottom of vaccum. Now remove the roller bar hold the bar by both ends and try spinning. This should be easy and smooth if not pull off the end cap these will be very tight and check the bearings in each end i think you will find a few small metal balls rolling around inside if this is the case you need to replace the bar
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I had the same problem with mine, I took it to a repair shop. The problem is where the belt passes through from the brush and goes inside the machine. Move the belt over a bit and you will see that a plastic guide has been bent over and is pressing onto the brush, which causes the noise. Just bend it straight again and it stops.
I'm sorry to hear you're having difficulties with your DC07. Your machine's brush control is designed to make a ratcheting sound to warn you if an obstruction is jamming the brushbar. The easiest way to check everything is correct with the machine is to follow the steps shown in our online support guide:
This should resolve the issue, but if the cleaner continues to make the noise after you've removed any obstructions from the cleaner head, please call us free on 0800 298 0298 (UK), or 1866MYDYSON (US), so we can help.
Hi there SmartAlec from NelsonVacuums.com.au here. The rattle is the clutch engaging. It can happen for a couple of reasons. The best case for you is if there is something caught in the brush roller that you can simply remove. The next best is that the end caps of the brush are full of junk that you will be able to remove. Its not easy getting the brush out to clean there but it can be done. If the brush spins in your hand easily when the brush is removed then it is the clutch itself. THe main roller often melts which is caused when the tension on the belt gets to high thus creating too much heat. THis can be resolved only with a new clutch. Hope this helps, if you have more questions dont hesitate to reply or if you need parts just visit NelsonVacuums.com.au. Happy Vacuuming :)
Sometimes the brush bar may be slightly bent
and has been rubbing against the yellow housing part (at the hole where the belt
is) and has melted part of it off, the part which holds the brushes in place. The noise may the bar vibrating against the yellow part because they are now
loose. Unfortunately you may have to replace both parts.
HOWEVER this did not resolve the issue. I realized the beater bar was not spinning or was slipping. I thought I cleaned it all out but realized you need to take the beater bar out and pop the end cap and clean out the INSIDE of the beater bar (tons of lint and cat hair). I additionally sprayed WD40 in there.
It spins great now and in the end I think that's all I had to do was clean out the cat hair build up inside the beater bar. But now I have a new clutch & belts too. Hopefully won't have issues anytime soon.
On a Dyson this engages the brush bar. Two possible faults: Debris (hair etc) caught in brush bar - cut out with knife. Or - damaged drive belt - pieces of belt striking casing. Last, but unlikely cause, debris in bearings of brush bar - replace brush bar.