My Dyson v6 motorhead vacuum started surging the other day. Really annoying! When you pressed the trigger, it would turn on and off repeatedly. I was disappointed, other than that, I love this vacuum cleaner! Luckily there is an easy fix for this to get it going again, good as new. Follow this picture guide for a super simple fix for this problem.

(Note: I understand that the Dyson DC59 can have similar issues with the same fix. It is usually either a stuck flap on the intake head or the filter issue.)

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The Dyson v6 has a flow meter circuit that shuts the vacuum cleaner down if the flow rate decreases beyond a certain point. This is a safety feature to protect the vacuum from burning out the motor. The cause of low flow rate is usually a clog of some sort. So the first step is to check the rotating brush and tube to make sure there is nothing clogged or jammed in there.

In my case, there is nothing clogging the vacuum. If yours has this issue, the next step is to remove the filter and clean it.

replacement filter cartridge for Dyson v6

The filter is located under the circular cover on top.

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It is kind of tough to grab it by the little knob they have in there, so if necessary, use a pliers to grab it and pull it straight out.

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With the filter removed, try running the vacuum. If it is no longer surging, or revving then your problem is a clogged filter!

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Notice the ‘faucet’ icons on the filter. These indicate that you should clean the filter by washing it out.

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Run water on the filter and squeeze it. You will see a bunch of dirty water come out. Repeat this until the water you squeeze out is clear. Then the filter is clean!

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For many cases, this level of rinsing may be enough. For me, several months later the same thing happened (the surging) so I had to rinse it out again. This time I disassembled the filter more fully and found a nice little wad of hair inside of it. So it is worth it to take the filter off of its housing. To do this, take a flat-bladed screwdriver and press in the clips as shown.

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Once the clip is depressed, pull the filter at an angle, then do the same thing to the next tab.

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Repeat for all 3 tabs until the filter comes loose from the housing. Then pull it off.

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Clean out any new hair and debris.

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Turn the filter upside down and tap out any loose dirt and dust.

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After all the loose stuff comes off, rinse it out with water.

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Be sure to rinse the outside as well, so that the dirt is pushed through the filter from the direction where it came from.

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Wring out the filter, then repeat the rinsing process.

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IMPORTANT: The final step is very important. Make sure you let the filter dry out before you put it back into the vacuum and give it a try. If the filter is still wet, the vacuum will continue to surge because not enough air can pass through it.

For me it took about 24 hours for the filter to dry out. I put it on the warm air vent to keep airflow moving around it.

Once the filter is fully dried out, put it back into the vacuum and give it a try. When I did this, it did surge a couple times at first, then I heard a slight popping sound, like the filter expanded into place or something, then it worked fine again!

If after you’ve cleaned the filter and let it fully dry, it still pulses, you may need to replace the filter.

It seems to me you can get about 3 rinses out of a filter before it is too clogged with tiny particles that it doesn’t make sense anymore. The new filters are pretty cheap, e.g. here is a 3-pack available on Amazon.

Thanks for reading and check-out these other money-saving home maintenance articles!