20 Most Recent Dyson DC04 HEPA Bagless Upright Cyclonic Vacuum Questions & Answers

The clutch has belts in it which lose elasticity and should be replaced frequently for proper performance. The brush bar also gets hair and debris that works its way into the bearings and main shaft. Check this area thoroughly and clean or replace as necessary.

Dyson DC04 HEPA... | Answered on Oct 02, 2017

There has to be a clog or restriction or a part missing somewhere, if not a changeover valve may not be switching airflow from floor to tools

Dyson DC04 HEPA... | Answered on Apr 12, 2016

Hi David,

Thanks for your question.

I wonder if you have a picture you would be willing to share, showing us this effect? I'm not certain what might be causing this.

Alternatively, it might be best to give the Dyson Helpline a call on 1-866-693-9766 (US), 1-877-397-6622 (CA), 0800 298 0298 (UK). Our experts will be happy to talk you through some further diagnostic checks when you have your machine easily to hand.

Best wishes,


Dyson DC04 HEPA... | Answered on Dec 08, 2015

It is probably stretched and needs replaced. The belts are in the clutch, it is easier to install a whole new clutch

Dyson DC04 HEPA... | Answered on Mar 30, 2015

Visual inspection can help you decide if the brush bristles look like they are missing or too short. Also if rugs do not clean up as well or leave a pattern or trail. These two together should tell you.

Dyson DC04 HEPA... | Answered on Feb 15, 2015

If the hoover switches on then you may have a blockage in the cleaning head or pipe. If it does not switch on the you may have a break in the cable where it enters the machine. It is quite common for the cable to break there.

Dyson DC04 HEPA... | Answered on Dec 17, 2014

Repairing/removing the cable/switch on a Dyson DC04


I’m happy to help further over the phone at https://www.6ya.com/expert/charles_6bf94c079488b145

Dyson DC04 HEPA... | Answered on Aug 14, 2014

watch this video

Dyson DC04 HEPA... | Answered on Aug 14, 2014

I wouldn't waste your time
these motors are well built but by the time the brushes need replacing other parts of the motor are worn out

Dyson DC04 HEPA... | Answered on Aug 10, 2014

Hi there, it's Jack at Dyson.

Our online Support pages for DC04 contain all the information you might need to know to resolve issues with your vacuum in the event of a breakdown: http://www.dyson.co.uk/support/dc04/dc04-brush-control

Although it's an online guide, and is designed to be navigated quickly and easily via your web browser, the pages could also be printed out if you wanted a hard copy.

I hope this helps, but if you'd like any further information or advice, please give our freephone UK Helpline a call on 0800 298 0298.

Dyson DC04 HEPA... | Answered on Jul 29, 2014

Is it stuck in machine or is the door stuck?

Dyson DC04 HEPA... | Answered on Nov 02, 2013

VERY gently tap it with a non-metal object, like a wood handle or something to see if that will loosen it up. Then, try using a flat-edged screwdriver to pry it loose from it's base, but VERY gently, so as not to damage it.

Dyson DC04 HEPA... | Answered on Oct 19, 2013

Hi there, it's Jack at Dyson.

If your DC04 has a brush control on the cleaner head, you'll need to set this to 'On' for carpets, and 'Off' for hard floors. You can find out how to do this on our Support site:


If your machine does not include the brush control, it will only be suitable for vacuuming carpeted surfaces and we'd advise against using it on hard floors in upright mode. However, you can use the hose and wand to vacuum hard floors and we have several suitable hard floor tools available which may help.

I hope this helps - if you'd like further advice you can reach our freephone Helpline on 0800 298 0298. Just to let you know, our Helpline is available from 7am-10pm, 7 days a week.
Best wishes,
JackDyson Online Customer Supporthttp://www.dyson.co.uk

Dyson DC04 HEPA... | Answered on Mar 06, 2013

here is a video with full instructions

Dyson DC04 HEPA... | Answered on Jan 26, 2013

all Dyson's have a thermal breaker built in them,,witch means if there is a blockage it will stop working to protect the motor it will reset itself if you leave it for 30 minutes to cool down,,.

Dyson DC04 HEPA... | Answered on Jan 19, 2013

this video will show you

Dyson DC04 HEPA... | Answered on Jan 09, 2013

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