Dyson is making a higher pitched sound than usual. I do not see blockage in tube, but seems to be when it switches from wand to regular in the curved transition area that I can put my hand over the wand a few times when on and it seems to clear up only to begin again. Any ideas? I also recently cleaned filters, possibly not a good fit when inserted back in?

First off, the manual for this model can be found here (
https://www.dyson.com/medialibrary/Files/Dyson/Support/downloads/US/Floorcare/manuals/dc17_opmanual_usa%20pdf.pdf ) Between the manual, and elements that run across a number of Dyson uprights, here are a few things to try. To be thorough, I'll start with the hopefull way-too-obvious.
Unplug and re-plug to the wall outlet, or plug into another one. If it's a GFI plug, or one hooked to a wall on/off switch, reset the plug / flip the switch (or plug something else in to verify that there's wall power)

Make sure the dust bin is empty.

Dyson systems have sensors for blockage and brush obstructions to keep from overheating or burning out components. If the system overheats, it'll shut down, and not re-engage until it's cooled. If that may have happened, best to check, rather than turn it back on and re-overheat it due to the blockage still being there.

Go through the parts of the clearing-blockage pictures on page 9 of the manual. If there are blockages, the system will shut down to keep from overheating.

Check the filters. If they look dirty or dusty, wash them (as covered in the manual) and try again.

Detach the tube/wand from the back. Detach the wand and look through it for blockage. Either look down the tube, or stretch it out long and you should be able to see through the translucent walls, for blockage. If you find it, i've found a wire coat hanger bent into marshmallow-toaster shape, with a small hook bent into the end with pliers, to be pretty good at snaking from the ends of the tubes to grab wads of paper or lint (that's what usually ends up clogging my DC07 when it happens).

For the switch itself, there's a fair amount of disassembly to getting to the guts of the switch proper. IF you go that route, make sure it's unplugged first. Try just cycling the switch a dozen times or so and feel for if you're getting a distinct click from the toggle. Feel if it moves easily, or might feel jammed or impeded. if so, look in with a flashlight and see if there is any obvious lint or debris keeping the switch from moving easily.

Good Luck!

Hi,

It really depends on what sort of noise it is making but if the motor seems to have a higher pitch to it than normal, I would suggest that it is a blockage of some kind.

Please have a look at the following troubleshooting guides to try to resolve this as well as the video.
Removing blockages from the wand and hose
Removing blockages from the main body

If you continue to have difficulty, please 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.

check for blockages

Hi there, it's Jack at Dyson.

I'm sorry to hear your DC28 doesn't seem to be working correctly. It sounds as though the change-over valve may be jammed - this diverts the suction to the hose when you remove the wand, and back to the cleaner head when you replace the wand on your machine.

You may find a blockage is jamming the valve - you can check for this using our online Support guide:

http://content.dyson.com/support/help.asp?article=1236&product=DC28-ANIMAL

If you can't find any obstructions, please get in touch with us directly as we'd appreciate the opportunity to provide further assistance. If you email us at [email protected], we'll be in touch as soon as possible.

Best wishes,

Jack
Dyson Online Customer Support
http://www.dyson.com

Hi Pam,

I'm sorry to hear you're having difficulties with your DC25. If there doesn't seem to be much suction from the wand, there may be a blockage in the wand or hose. To check for this, please follow the steps shown in our online Support guide:

http://www.dyson.co.uk/support/dc25/dc25-multi-floor/my-machine-is-not-working/machine-not-sucking-picking-up-as-well-as-usual/how-to-wash-filters/check-suction

This should resolve the issue, but if you're unable to find any blockages but continue to experience difficulties, please get in touch with us directly so we can provide further assistance. You can call us on 0800 298 0298 (UK), or 1-866-693-9766 (US).

Best wishes,

Jack
Dyson Online Customer Support
http://www.dyson.com

Hi Sharon,

I'm sorry to hear you're having difficulties with your DC14. If the machine doesn't seem to be picking up as well as usual through the wand, this may be due to a blockage in the wand, hose or U-bend. The easiest way to check for this is to follow the steps shown in our online support guide:

http://support.dyson.co.uk/support/dc14/dc14-origin-iron/my-machine-is-not-working/machine-not-sucking-picking-up-as-well-as-usual/how-to-wash-filters/wand-suction

Although I note you've cleaned the filter, you might want to check you've washed it as shown in the video below - in normal use, this should be done at least once every 3-6 months. Wash both parts of the filter in cold water without detergent, and allow at least 12 hours for it to dry before replacing it.

This should resolve your issue, but for any further assistance, please call us free on 0800 298 0298 (UK), or 1-866-693-9766 (US), so we can help.

Best wishes,

Jack
Dyson Online Customer Support
http://www.dyson.com

After hours of investigation, I have found the root of the suction problem for anyone having the same problems. If you take the hoses off the change valve that switches between hose and brush bar. You will see that the change over is done by a flimsy piece of plastic that doesn't actually create a seal with either ports. In fact mine had a 2/3mm gap. Its disgraceful that it left the factory this way, they should have been recalled and replaced!

I wonder what Mr Dyson would say about this .

Let me know if your is the same and Ill tell you how I partially fixed it to get atleast 200% better suction!

Hi there,

The black curved piece you mention is part of the changeover valve mechanism, which automatically diverts suction from the cleaner head to the hose when you remove the wand from the cleaner. The position you've described it in - open, with the base of the wand poking through - is normal when the wand is fitted on the machine, and is nothing to worry about.

If you have any further concerns, please get in touch with us directly so one of our experts can provide the assistance you need. You can call us free on 08002980298 (UK), or 1866MYDYSON (US).

Kind regards,

Jack
Dyson Customer Service

You probably got a blockage in your wand which caused it to overheat and cut out. Check for blockages, use a brush stale down the tube to dislodge anything. Next, check your filters, refer to the tutorials here: Looking after your Dyson.

Hi its Darran at Dyson.

It sounds as though the wand handle is blocked. To check this, remove the wand/hose from the machine as if you were going to use it to vacuum the stairs. Switch the machine on and test the suction at the top of the wand handle with your hand. If the suction from the wand is poor, remove the wand from the hose and test the suction again from the top of the hose. If the suction here is good, then you know the wand handle is blocked. If the suction is poor at the hose, you can remove the hose from the machine and clear any blockages here.

For the full blockage procedure please visit the support section on our website at www.dyson.com.

Kind regards

Darran
Dyson customer Service