Hello, this is Ava with Think Crucial.
There are a number of reasons why your Dyson cleaner is pulsating off and on. First, it can be due to a battery of the cleaner. Make sure that the power cable is properly plug to the power and seated properly from the unit while charging. If you find that the battery isn't charging at all, you may need to replace the battery. Second is to check the MAX button of your cleaner. If the button lights up and flashes when your Dyson keeps on pulsating, press and hold the power button and depress the MAX button to turn off the function. You may need to do it for a few times to get the hang of it. Third is to check for any blockages or clogs in the attachments. Look down through the tube and check to see if there are clogs on the sweeper end or if the roller is tangled up in fibers. Clean the roller brush are if it it's necessary. You may need to empty the dust bin of your unit as debris can build up in hard to reach places. Lastly, cleaning the filters may fix the pulsating of your cleaner. Remove the filter and rinse it with cold water and air dry it for 12 hours. Don't use detergent when washing your filters. If the pulsating doesn't go with the given quick fix, I suggest to contact Dyson for further assistance on this.
You can purchase a wide variety of high quality Dyson replacement parts for your Dyson Vacuum direct from Think Crucial with free shipping and an exclusive 10% coupon for Fixya.com readers, use code: FIXYA10
https://www.thinkcrucial.com/search?type=product&q=dyson
I hope this was helpful.
Ava B.
Think Crucial Customer Care
http://www.thinkcrucial.com/
SOURCE: Dyson DC07 Original won't pick up at base
Hi,
Lie machine on its side pull back handle as if vacuuming & switch on (KEEP YOUR FINGERS & ANY LOOSE CLOTHING CLEAR OF BRUSH ROLLER)
Brush should spin if it doesnt ensure clutch control knob on side of machine is in drive position if it isnt rotate knob by hand to drive brush should now spin.
If it doesnt & your machine has A clutch either clutch will need replacing or belts will need replacing.
Manuals are available to replace belts & remove the clutch from this site http://dysonmanuals.llc.nu/index.htm
SOURCE: brush and belt no longer rotating
My vacuum does not have suction and the belt is no longer turning the brush
SOURCE: rotating brush will not turn on my Dyson DC07
Yes I had the same problem on my animal Dysom. There is a button on the top of the dysom that turns the cacuum on. Right beside that button is another one that turns on and off the brush!!! Good luck!!! I accidently one day bumped that button and couldn't get my brush to work but after troubleshooting it, that was my solution.
SOURCE: I have a Dyson Animal. Roller bar won't turn/belt intact
Actually, I'm the poster who said I have the same problem, but it turns out I have the DC07 animal, not the DC14, but perhaps the solution is the same for the DC14 and it doesn't cost anything! I called DYSON and they told me the clutch needed to be reset, so she had me recline the vacuum from its upright position, lay it on it's side, turn the carpet/bare floor dial slowly back and forth between the two settings about 6 times and it apparently reset the clutch and now the cleaner bar spins normally and there's no more loud grinding-type noises. She said if that didn't work, the next step would be to remove the bottom protective panel (secured with the three large plastic screws) and lift the entire cleaner bar (do not remove the belt) out about an inch or so and then reinsert it and reattach the bottom plate. I hope this helps your problem. Good luck.
SOURCE: Brush roller won't turn
On my Dyson, there is a brush reset button on the top right hand side (if you are looking at the front) that you can press to reset the brush. I was vacuuming and too lazy to move a toy and this worked for me once I freed the rope from the brush.
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