Dyson DC50 Blocked and Hissing – Not Picking Up

A few customers have brought their Dyson DC50 to us not picking up.

Typically, when a Dyson doesn’t pick up and has no suction, it is blocked. Dysons make a loud hissing sound when there is a blockage in the system somewhere. The DC50 is the same in this regard.

Dyson publish a simple guide that covers checking your filter, checking the wand isn’t blocked, etc. You can find that on Dyson’s website here if you need it (opens in a new window).

However, what we are going to show you in this article is the place a DC50 typically blocks up that Dyson don’t tell you.

You may very well conclude that what you are about to read constitutes a design fault; we couldn’t possibly comment.

I am going to assume that you have read Dyson’s guide linked above and having tried what is detailed in there, your machine is still blocked and hissing.

The most likely culprit is a blockage in the cyclone. Here is what to do:

Remove the cyclone from the machine using this button.

Dyson DC50 Repair

Having done that, empty the bin by pressing the same button again over the bin.

Then leave the bin flap open for the next step! 

Next, locate the little silver clip circled below.

Dyson DC50 Blockage

Depress that clip to remove the outer perspex drum.

You now have this.

DC50 Not Sucking

Now look on the side vent, and you will no doubt find it is blocked solid.

Here is one we did today that was blocked, observe the debris clogging the vent circled below.

Dyson DC50 Hissing

Fish all that debris out of that hole, then look at the bottom of the cyclone and you will see the central cylinder is divided into two, make sure both those are clear as well.

Now you can reassemble your machine – which is simply a reverse procedure of what you did above.

When you switch it back on, the hissing will have gone and the machine will pick up once more.

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101 Responses to “Dyson DC50 Blocked and Hissing – Not Picking Up”

  1. Thank you so much for this. I don’t think people realise the cylinder fills very quickly and has a small capacity so we all jam it up. Why Dyson don’t mention this problem with the solution is beyond me!

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