Question about Dyson DC07 Animal Bagless Upright Cyclonic Vacuum

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When I put the vacuum in position to use on rugs, it makes a horrible grinding noise like something is stuck.

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Hi If the Dyson model you have has a protected brush model (i.e. roller wheel at the side that goes up automatically to turn off the brush roll) then the belt will have to be replaced by a Dyson engineer. If its not that model and doesn't have the brush roll stop function, check that the roller beater bar and the brush are properly aligned, also checking the main dust channel isn't clogged.

Posted on Mar 07, 2009

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Noise


Hi Linda,
Sounds like clutch problems, try to move the lever for carpet/floor back and forth a few times maybe it will free up. If it still makes the grinding noise, the clutch assembly will have to be replaced. Let me know, i can even walk you through the repair if needed.

Apr 08, 2010 | Dyson DC07 Bagless Upright Cyclonic Vacuum

1 Answer

Beaterbar will not turn and very loud grinding


Greetings,

When the Dyson DC07 makes that horrible grinding noise, there's really only one of two things that can be wrong. I have taken a few pictures to help you try and diagnosis the problem.

The grinding noise is made by the machines clutch mechanism. The clutch is what stops the roller brush from spinning when you change the vacuum from carpets to bare floors. The grinding noise is the clutch slipping, and not being to able to turn the belt. In most vacuums when the belt can not spin freely it will cause the belt to burn or to break. On Dyson's, the clutch mechanism prevents the belt from burning or breaking if you were to get something stuck in the brushes such as a towel underneath of a bad, or tassles on an oriental rug.

So when you hear this grinding noise, only two parts could be bad, the actual clutch mechanism itself, or the roller brush. I'll gladly help you diagnosis, and give you instructions on how to fix your Dyson.

Step 1. Make sure the vacuum is unplugged. Then turn the vacuum upside down so that the brushes are facing up. It's easiest if you put the head of the vacuum on top of a bench, or counter top. This is how the vacuum should look:


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Step 2. You see on the bottom of the vacuum 3 plastic screws that are usually the same color as the vacuum cleaner. If you're vacuum is purple, the screws will also be purple. Use a flat head screwdriver, and turn each of the 3 screws a half of a turn, counter clockwise to loosen then. After each screw has been turned (you don't need to remove the comletely, just a half of a turn is all), simply pull upwards on the bottom plate to remove it.


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Step 3. You should now be able to see the roller brush exposed. You'll now need to remove the roller brush. This will take some patience, and some work in order to get this brush out of the vacuum. There is a special tool that has been designed to help you get the brush out easier. I would try getting the brush out first before buying this special tool. The easiest way is to use a flat head screw driver and pry the belt up while pulling up and out on the brush. With some patience and some manuvering, you'll be able to get the brush out of the vacuum. Here's where you should put the flat head screw driver on the brush:


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Step 4. Once you get the belt out of the vacuum cleaner, it's time to test it. Use your finger tips to hold just the end caps on the very end of the roller brush. While holding just the end caps, use your thumbs to try and spin the roller brush. Does the brush spin freely? It should rotate completely several times on each spin. If the brush doesn't spin, or you feel some kind of resistance to the brush spinning, then this indicates that your roller brush has gone bad. Here's a picture of how to test the brush:


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If the roller brush went bad, then you'll need to purchase Genuine Dyson DC-07 Roller Brush for Models That Use a Clutch Part # 904174, then reinstall the new roller brush into the vacuum when you get it.

If the brush however was able to spin freely, and it span multiple times on each spin, this indicates a little more serious problem of the clutch itself has gone bad. The clutch replacement repair is a much longer, more challenging repair to do. I posted a video on how to replace the clutch below so that you may follow step by step instructions on how to change it. It was really helpful for me the first time I did this repair.


I hope that this was able to at least diagnose the problem for you. That horrible grinding noise can only be one of those two problems. If you found this repair helpful, please be sure to rate the repair as helpful by clicking the thumbs up icons in the top right hand corner of the repair. Please feel free to check out our website for your future Dyson vacuuming needs, we have a lot of stuff already on the site, and if we don't have it up, we can definitely get it for you.

Thanks again,

Chris J.
GoVacuum

Apr 02, 2010 | Dyson DC07 Animal Bagless Upright Cyclonic...

1 Answer

When in carpet mode, brushes seem to be hitting something. Brushes cleaned - how to stop making the awful noise


LOL do you mean when you move the vacuum forward (say into a baseboard)? it makes the loud shocking noise.. i hate that too.. but that's the crazy Warning sound indicating something is stuck (like you sucked up an area rug) or you have run into something and it set off a sensor.

Mar 26, 2010 | Dyson DC07 Animal Bagless Upright Cyclonic...

1 Answer

Loud noise/Sounds clogged


You could have a clogged air filter and vacuum is not getting air to motor. You could have hair and string buildup on ends of roller brush. You can put a vaccum hose over a broom handle to clean it out. Also, check the little elbow of the hose at the bottom f vacuum where it bends.

Aug 28, 2009 | Kenmore 35912 / 35913 Progressive Upright...

2 Answers

Loud noise when I start the vacuum in carpet position


It's most likely the Belt Slip Protection Dyson uses to prevent the user from having to replace belts. I recently bought a Dyson and love it other than it literally sits there and makes horrible noises 80% of the time. I completely disassembled the vacuum and found that the spring they used for this belt slip protection is WAY too weak. The weak spring seems to let the belt slip protection pop off way too frequently and unnecessarily. I stretched the spring back out and whammy no more horrible clanking. Of course it'll take you a couple of hours, some good tools and some serious ingenuity to get to where the parts are but problem solved. It'll still ratchet when picking up a sock or dog toy or something, but sitting there ratcheting on short dense carpet is unacceptable. Hope this helps!!!

Feb 14, 2009 | Dyson DC14 All floors Bagless Upright...

2 Answers

Loud noise when I start the vacuum in carpet position


Not exactly a solution, but more of an explanation. The noise is caused by a ratchet device that's designed to protect the belt if the brush roller becomes blocked. It's a bit like a clutch that slips when resistance on the brush gets too great. The noise will occur if there's a solid blockage, of course, but it will also occur whenever the machine senses excessive resistance. This may happen on carpets with really thick pile, but can also happen if the carpet is loosely fitted and can be sucked up tight to the roller by the force of the vacuum. 
Small consolation, but the problem should lessen as the brush wears. Meanwhile, if all else fails, switch the brush off (hard floors mode) while vacuuming the problem carpet(s).

Feb 08, 2009 | Dyson DC14 Animal Bagless Upright Cyclonic...

1 Answer

Bottom roller bush does not spin


Sounds as if the v-belt came off the idler arm or you broke the v-belt. Either way, take the 4 screws out of the plate around the roller brush and make certain the belt is there and that it sits on the idler wheel. If you remove the roller brush you'll see the wheel. Pay attention to how the ends of the roller brush go back into the vacuum when inserting it and put the plate back on. Also check the thicker main belt is in place as well, it's to the left of the v-belt.

Also, the roller brush should stop when you put it in the upright position. Next time just stand it upright so the throw rug doesn't get drawn quite so far into the vacuum.

Dec 19, 2008 | Hoover U6437-900 / U6439-900 Windtunnel...

1 Answer

Loud noise


This is the clutch as it jams up in the brush. Usually happens with rugs that are not secured to the floor.

Dec 11, 2008 | Dyson DC14 Animal Bagless Upright Cyclonic...

2 Answers

Loud noise


I think you damaged the belt. I ran over a sock once and it made a grinding noise but still worked for several months after the incident. Finally, the belt broke off. I had it replaced and now it doesn't make that sound.

Sep 26, 2008 | Dyson DC17 Animal Bagless Upright Cyclonic...

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