Dyson Radial Root Cyclone Doesn't Work Very Well!

[ctvacman]

I find that to be a problem when emptying that the dust goes up the tube, but only like an inch. I clean it out before installing, but the average user definetly will not which causes fine dust to go through the motor.

 

[vacuumfreak95]

Alex

My Dyson DC40 has done the same as yours since day one, I will have had it one year this April. The cyclones have always had a layer of fine dust inside as well as the suction inlet for the motor. At first I was concerned about this, but being its been almost a year and no problems have come of it I've kind of let it go. "Let it go" "let it go" OK I'll quit singing.....Also I've only washed the filters twice since I bought it cause they never get dirty! I find this kind of weird, but in a good way. Only thing I have noticed is that the post motor filter is turning black...Even after its been washed, probably carbon deposits from the motor or fine dust that's been getting through over time. Here are some pictures below.

 

[parwaz786]

That is ironic indeed :/

 

[marcusprit]

To be honest Alex i think the dust you see at the bottom of the cyclone is dust blowing back but the dust at the top inside the filter housing looks like dust escaping. I can honestly say that has not happened with my machine i would say if it had i've no reason not to i'm not being paid by Dyson. I always give my honest opinion of all the cleaners i use.

I will try to take a clear photo later to show you.

Anyway why not call out a Dyson engineer and ask him to tell you why this is happening and to put it right or you want your money back.

 

[marcusprit]

Can you see this any better there's only a few tiny specs of dust.[this post was last edited: 2/3/2015-03:38]

 

[marcusprit]

And apologies for yesterday I need to control my outbursts :-(

 

[alexhoovers94]

Don't worry Marcus...

Anyway, look I have made a start, I have not touched the filters to check yet, not until the bin is full. Oooo it is so exciting!

 

[marcusprit]

Haha it is. A little dust in the filter tube is not going to do any harm but it should not be caked in dust. Those cyclones should be throwing the vast majority of dust out of the airflow. According to Dyson down to 0.5 microns so I hope it works for you.

 

[alexhoovers94]

I decided I couldn't wait and decided to check!

so here it is from one use, bear in mind I vacuumed yesterday quite late on in the afternoon so the Dyson has not picked up a lot of dirt.

So here is another shot of what is in the bin.

 

[alexhoovers94]

now without emtying the bin, I checked the filter housing

it is pretty good, not spotless but not too bad, this pic was taken with the flash on.

 

[alexhoovers94]

This is a picture of it again in natural light.

 

[marcusprit]

Yes that's more like it Alex nothing there to worry about. That is what mine looks like after a much longer period of time.

 

[dysonman1]

This started happening with both my DC41 and DC65 from day one. I know the high efficiency cyclones will never be 100% efficient. As airflow amounts change due to the tools used, and whether or not something (like a sofa cushion) is cutting off the airflow into the machine - the cyclone's efficiency changes. I knew fine dust would escape the cyclones and collect on the pre-motor filter.

What bothered me was the amount of fine dust on the outside of the filter, in the tube. I too, thought it was coming "around" the filter - but I now know that wasn't the case. The trap door on the bin has a large gasket. When the bin is emptied, the fine dust (from the fine dust collector) on the gasket is being pushed "up" into the tube. Static electricity, as well as a puff of air as the bin bottom is closed, puffs a bit of fine dust into the tube.

The problem is: as soon as the motor is started, this admittedly small amount of fine dust is inhaled into the motor. My DC65 and DC41's HEPA filters have dust on them when there normally would only be carbon residue.

I believe the fault lies in the fact that the airflow is coming from the bottom, not the top. This same thing happened with the Bissell Heavy Duty - the dust on the bin trap door seal got into the 'clean' air going into the motor.

The pictures are of my 2 year old DC41. The tremendous amount of fine dust that has escaped the cyclones is first. Second picture is of the seal on the bin trap door, showing how dangerously close the fine dust is to the motor's "clean" air intake. Third is of the fine dust collector - and how easy it is for this fine dust to find its way into the tube, as well as the motor's "clean" air intake.

 

[marcusprit]

I agree with you Tom you make some good points, dust will blow back up the tube when emptying the bin. I have found by using a very long bag this minimises the blow back. I get a little dust at the bottom but I wipe that away.
The cyclones are very good I don't think there's anything to worry about there.
The Cinetic cyclones have to be even more efficient as no pre motor filter.
There's a five year warranty so I'm not concerned about it.

 

[dysonman1]

To be fair, I use the DC41 every day (five days per week) to clean the rugs in the vestibule at the Factory where we make Simplicity and Riccar and Maytag vacuums. The gravel driveway and parking lot, plus in the winter all the ice melt salt, means the Dyson is picking up lots of fine dust. I have NOT washed the pre-motor filter yet - it simply doesn't appear dirty enough on the inside to warrant this. And the machine runs, at the most, 10 minutes per day.

I've decided to wipe off the gasket in the bin door, to see if that will help - each time I empty the cleaner.

Our country allows a vacuum to use up to 1200 watts (12 amps). I do own a number of European machines that use 240 volts. The suction was outstanding, but the motors sure sent out a lot of heat. Interesting that in two years, the maximum suction will be from a 900 watt motor in Europe, and we'll still have 1200 watt motors in the USA. How ironic.

As one of the first people in the USA to even know what a Dyson was, I got in huge arguments with vacuum "experts" on various forums for YEARS about Dyson. Not any more. Don't care enough to argue. It's a vacuum cleaner. I love Dyson cleaners, and am always happy to see improvements.

 

[dys0nb0y]

dysonman1 yours doesn't look that bad.doesn't really worry me that much as only a little bit and most of it will stay there due to the static.

 

[parwaz786]

So the Dyson cyclones do do their job after all, properly!

 

[dys0nb0y]

i know dyson have got their flaws like any vacuum but i gotta say they are very good and always improving and i know many people who are happy with their.and i'm going to order the kinetic later i love the fact it hasn't got a filter to wash.

 

[marcusprit]

The DC41 Mk2 is 700w over here.I get into arguments all the time haha silly isn't it I love Dyson cleaners too and Sebo, Miele and very impressed with the Riccar Brilliance.

 

[alexhoovers94]

"i'm going to order the kinetic later"

bet you have Dyson on speed dial, with mummys card at the ready!