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Dyson DC14 motor protection valve engages

So... we plug in the Dyson, see? and it starts up just fine and den? This thing called a motor protection valve starts whistling and sucking. What's up wid dat? My wife's hea yammerin' at me, I don't know what to do! Help!!!! I looked at the filter and it wasn't too dirty, the thing's only a couple months old. I dusted it off and put it back together and still the same thing!!

Any ideas guys and maybe girls? Tanks in advance for your help.

Tom P. in (for the lov'a god) Hawaii.
Email is bubblerings@gmail.com

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  • DysonDC14 Apr 10, 2008

    When the motor protection valve engages there is also no suction on the hoses.

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We had the same problem and located a big clog at the base of the flexible hose, where it goes into the U-bend attachment. See the DC14 Owners Manual, page 11, Item C for a picture. If youve already thrown out your manual, its available on the Dyson website. Theres a white tab button which allows the U-bend to slide out for cleaning. There are other places where clogs can occur (again, see the manual), but this is one of the more likely trouble spots.

Posted on Apr 08, 2009

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The motor projection usually comes on when the motor overheats. A clog maybe causing this. There a number of pieces to take of and check for a clog. You also have warranty on this, if you can't figure it out, take in to a warranty repair shop for repair.

Posted on Mar 29, 2008

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I had the same problem, and various people, including professionals recommended new parts & even a new motor at 1 point. I was extremely frustrated as I have a fairly small house & it's not as if the vacuum was being used 24/7. Eventually after a lot of investigating I discovered there was a large blockage. I removed the flexible hose & below that there is a 'u-bend' small, removable pipe (check owners manual). I removed this & even though I had checked it before, there was a blockage which had been causing the noise & loss of suction. I hadn't seen it before as the pipe is curved & the blockage was in the centre where I could not see. After poking and prodding a large ball of gross stuff came out & after assembling the vacuum again it is working perfectly fine and didn't cost me a penny :) no more high pitched, deafening whine & suction back to normal. Always worth remembering to clean the brush head as well as hair etc can get wrapped around it & cause problems. I hope this helps anyone experiencing the same problem.

Posted on Mar 01, 2015

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2 Answers

Does dyson DC14 have a thermal cut-out? If so where is it?


Hi Michael, it's Jack at Dyson.

Yes, like most Dyson vacuums, DC14's motor is protected by a thermal cutout, which shuts the machine down if it starts to overheat. It should reset itself automatically after your machine's had 1-2 hours to cool down.

To prevent this from reoccurring we'd recommend checking your machine for any blockages in the cleaner head, internal airways, wand or hose: http://www.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

It's also a good idea to give the pre-filter a wash as shown in the video guide below. Use cold water without detergent, and allow at least 12 hours for the filter to dry completely before replacing it. The pre-filter is engineered to last the lifetime of the machine in normal use, and as long as it's maintained as recommended we wouldn't expect it to need replacing.


If you'd like further help or advice from our experts after giving these steps a try, just give the Dyson Customer Helpline a call on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).

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I have a DC14 Animal. How do we get to the belt as it has no suction at the bottom. It is fine with the wand


Hi Trisha, it's Jack at Dyson.

I'm sorry to hear you're concerned about the performance of your DC14 Animal. Rather than a traditional belt, this machine has a brush control clutch mechanism, with two belts engineered to last the lifetime of the machine in normal use. These are not designed to be replaced by the user.

If your DC14 isn't picking up via the cleaner head, our online Support guide will walk you though each of the simple checks you'll need to carry out to determine the cause of the issue: http://www.dyson.co.uk/support/dc14/dc14-animal/my-machine-is-not-working/machine-not-sucking-picking-up-as-well-as-usual/how-to-wash-filters/no/loss-of-performance

Once you've completed these checks you should be able to resolve things. However if you'd prefer our experts to talk you though these checks over the phone, or if you feel a repair may be needed, you're welcome to give us a call on 0800 298 0298.

Just to let you know, our UK Customer Helpline is available from 8am-8pm from Monday to Friday, and 8am-6pm on weekends. Calls are free from UK landlines.

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I hsave a dyson dc14 was vacuuming and the power gradually started to reduce then completely died what could be the cause of this


If you mean the motor actually stopped, you may have got something lodged in a hose etc and as vacuuming it restricted more air flow which reduces the suction and will overheat the motor. Most have a thermally protected motor so after they cool down they will come back on, but unless you find the restriction, it will overheat again and cut off. If a hepa filter gets clogged up enough, it can do the same thing and some have a post motor hepa that says it is lifetime, but it is not.

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1 Answer

My Dyson dc14 blows from the floor sweeper and the black stopper under the start button /on spring/ gets suced insight when I start it. The noise has changed. Any ideas? Thanks.


Hi there,

Sorry to hear you're having difficulties with your DC14. If the noise has changed, the relief valve is activating, and debris is coming from the cleaner head, sounds as if have a blockage. The filter may also need a wash.

The easiest way to check for and clear blockages is to run through the steps shown in our online support guide:

http://www.dyson.com/support/help.asp?article=626&product=DC14-ANIMAL_US

The correct way to wash the filter is shown in the video linked below. Under normal use, the filter should be washed at least once every 3-6 months:

http://www.dyson.com/support/help.asp?article=1461&product=DC14-ANIMAL_US

Hopefully, by removing any blockages and washing the filter, you should be able to resolve your issue. However, if you've followed these steps and are still concerned, it's probably best if you get in touch with us directly. You can call us free on 08002980298 (UK), or 1866MYDYSON (US). One of our experts will be happy to run through some troubleshooting over the phone with you and recommend the best course of action.

Kind regards

Jack
Dyson Online Customer Support

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How do i fit new carbon brushers to dyson dc14


It will be a pointless exercise Ron. By the time the brushes on a YDK DC14 motor have gone, so has the armature. You need to replace the motor. You can get a new motor here: Dyson DC14 new motor.
Also, be sure you change the filters; one of which is washable.

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1 Answer

Not sucking up the dirt...making loud sound when we put the handle down to start vacuuming


The brush needs to be removed and cleaned, also take the sole plate off and check for obstructions. The noise you are hearing is the motor protector doing its job. When the brush does not spin freely the clutch engages and keeps the motor from burning up. I WIll attatch a diagram for you to take the unit apart and check for obstructions and worn parts. Something is clogging up the pathway for the dirt!
http://www.espares.co.uk/diagram/dyson/dc14-vroom/p/1086/716/0/474352

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1 Answer

My dyson will not stay on


This could be a faulty cable or switch, but could also be a faulty motor.
The motor also has a built in over-current protection device which normally automatically resets itself, but if the motor has a serious fault or the over-current device itself is faulty then this could be the cause.
Both the switch and motor (the over-current device is an integral part of the motor and is not available separately) are available quite cheaply on eBay2_bing.gif, but fitting new ones requires good DIY skills (especially the motor), and some unusual tools (Torx drivers2_bing.gif).
Have a look at www.dysonmedic.com which has some great info on repairing your machine, but if you dont feel you can repair it yourself, time to call a vacuum repairer or the Dyson helpline. Please note that although dysonmedic.com doesn't cover the DC14, the DC14 is very similar to the DC07.

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Dyson dc14 died, no power after burning smrll


It sounds like the motor has overheated and has now been irrepairable damaged.
The motor has a built in over-current trip to protect itself (and you if it seriously overheated and caught fire). This normally automatically resets itself, however if the motor has just about had it, the moment it is switched on, it just trips again.

The primary cause of motors overheating is that the filters are not cleaned or replaced frequently enough. Dont be fooled by Dyson's "lifetime filters". They need to be regularly cleaned and replaced when necessary.

Replacement motors are avaible on eBay for about £25, however repalcing one requires good DIY skills and tools.

Have a look at www.dysonmedic.com and see if you feel you can tackle it yourself. If not, take it to a repair shop or call the Dyson helpline.

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