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Author Topic: DYSON VACUUMS WARNING.  (Read 6183 times)

Offline rugbug

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DYSON VACUUMS WARNING.
« on: May 03, 2014, 04:24:06 AM »
In an earlier post i commented that i had bypassed the reset switch albeit only to confirm that the brush motor was rotating.

I would like to say that further tests were necessary to confirm both motors were not the initial cause of the demise of the reset switch.

Anyone tempted to bypass this switch may find the machine will initially operate and you may be pleased that it is now working...but this reset switch is the first inline protection put there to stop current flow in the event of a fault.

When a fuse blows in any equipment their is usually a good reason for it! . Having bought my machine at a local auction for 22.00 very recently i then had to find more information for it that's when i joined this forum and as an ex TV VTR repairer can appreciate a seemingly simple hoover can cause fire and injury or death to the unwary.

Be carefull out there. :sleepy_man:

Online MVacs

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Re: DYSON VACUUMS WARNING.
« Reply #1 on: May 04, 2014, 08:03:43 PM »
I think its always good to reiterate that in general terms, if you [people, not you Rugbug] don't have a decent grasp of home and/or appliance electricals, you should not attempt repairs to the machine that involve any of the electrical circuits.

Offline Jelcoelectrical

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Re: DYSON VACUUMS WARNING.
« Reply #2 on: May 04, 2014, 08:15:21 PM »
Don't start me off on this one... I'm a fully qualified electrician which has took many years of hard graft and a huge cost to achieve, yet on a daily basis I see DIY that could kill/burn down houses/maim... same with machines; there's some so and so based southern area who 'repairs' dysons by covering the neutral cable in sticky silver foil, just mm from the live switch supply, this would cause a nasty fault which if the customer doesn't have a decent modern RCD fuseboard up front could kill!

Albeit on any repairers head if you aren't PAT testing a machine before reselling

Offline rugbug

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Re: DYSON VACUUMS WARNING.
« Reply #3 on: May 07, 2014, 04:43:07 AM »
Looking through these post's i can see many who want to attempt a repair on their Dyson's that is the nature of the beast and why not! a lot are so inclined to do so.

What they / you should realise that a fuse is placed in many electrical devices that in the event of excess current being passed it will go open circuit in the live feed.

Through the years i have had many Tv Vtrs for repair some had  been looked at before it came to me by the client.

Just some of the situation's on initial inspection were: Silver paper wrapped around the existing fuse or fuses ...  A mickey mouse badge jammed  between the fuse holder!...A 3.15 anti surge  fuse fitted instead of a mA quick blow...Fuse wire of all ratings that were used in the older consumer units... paper clips... .

Many people are killed in the UK each year and outwith through ignorance. The seemingly simple task of mowing your lawn without adequate precaution can cause serious injury or death in an instant.

Finally i don't to cause fear or alarm to some on this Forum but if what i have briefly said makes you think again! then it is worth that?.

NB: Myself... yes i have experienced in the past many jolts whilst repairing Brown goods either through complacency or some high voltage capacitor that discharged through me.. wakes you up though!.

Be careful out there

Online MVacs

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Re: DYSON VACUUMS WARNING.
« Reply #4 on: May 07, 2014, 08:23:25 AM »
there's some so and so based southern area who 'repairs' dysons by covering the neutral cable in sticky silver foil, just mm from the live switch supply, this would cause a nasty fault which if the customer doesn't have a decent modern RCD fuseboard up front could kill!

I always thought that was something Dyson once did? We see so many of those, I doubted it they could come from a single source? Happy to be corrected if you know better.

Albeit on any repairers head if you aren't PAT testing a machine before reselling

Opinion seems divided on the need to PAT test a Dyson. If a PAT test is essentially an earth leakage test, a Dyson is a Class II appliance that does not require a connection to ground so has no earth, so cannot be tested in the traditional manner. I read a lot on this a while back - example >>here<< and >>here<< - and our local TS was once bugging me about this. I told him to come back when he could show me where the earth was on a Dyson.  :chuckle:

This made me laugh from the electricians forums:

Quote
a case of an engineer who failed a Dyson Vacuum cleaner because he couldn't get an earth on it, and chopped the plug off. Now we know that reason he couldn't get an earth was because it was class 2 but he didn't see the symbol. The vacuum was 2 weeks old, the customer took it back to Curry's who sent it back to Dyson, declared it to be perfectly safe - apart from the fact that some muppet had chopped the plug off. They charged 70 for a new cable assembly (plug is colour coded to the vacuum and moulded onto the cable!)

Online __russ__

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Re: DYSON VACUUMS WARNING.
« Reply #5 on: May 07, 2014, 09:56:05 AM »

I always thought that was something Dyson once did? We see so many of those, I doubted it they could come from a single source? Happy to be corrected if you know better.


I've seen many DC07's where the blue neutral cable is covered in sticky foil - always thought this was direct from Dyson too

Online beko1987

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Re: DYSON VACUUMS WARNING.
« Reply #6 on: May 07, 2014, 10:39:04 AM »
Same here, lots of DC07's with foil! Not all of them though.

I generally just take it off and ensure the rubber boot covers everything. With DC04's where one needs to remove the cover from the neutral wire to remove the cable from the chassis I either put it back on or just cover in insulation tape.
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Online Madrat

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Re: DYSON VACUUMS WARNING.
« Reply #7 on: May 07, 2014, 08:22:59 PM »
9 out of 10 DC07's I have seen have sticky foil on neutral connection.

Offline Jelcoelectrical

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Re: DYSON VACUUMS WARNING.
« Reply #8 on: May 08, 2014, 11:05:13 AM »
It's usually over the top of the pre-existing rubber/plastic covers, I've seen a few examples, doubt very much it's Dyson engineers doing it. If you do see it, tear it off.

In regards to PAT testing: yes it doesn't have the earth so no earth leakage test, however one of the tests checks the insulation resistance of the L/N sheathing, which checks for a fault that cannot be seen by the eye alone (internally twisted or worn conductors) as I say it's completely down to the engineer in question but I'd not risk selling one without it.

Offline autovac01

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Re: DYSON VACUUMS WARNING.
« Reply #9 on: May 19, 2014, 02:13:50 PM »
Quote
"In regards to PAT testing: yes it doesn't have the earth so no earth leakage test, however one of the tests checks the insulation resistance of the L/N sheathing, which checks for a fault that cannot be seen by the eye alone (internally twisted or worn conductors) as I say it's completely down to the engineer in question but I'd not risk selling one without it."

I would like to add that, in addition, a PAT test includes a visual inspection of mains cable (outer sheath damaged to expose cable insulation is a failure) and casing damage (where electrics may be exposed). All our repairs & recons are tested


Online beko1987

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Re: DYSON VACUUMS WARNING.
« Reply #10 on: May 19, 2014, 02:18:29 PM »
I've always wanted to get into PAT testing my refurbs and the other machines in my collection, but the cost of even a well used 4th or 5th hand machine puts me off.

Plus how would I PAT test my pat testing machine...

Can you pat test older metal Hoovers with no earth?
Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline autovac01

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Re: DYSON VACUUMS WARNING.
« Reply #11 on: May 19, 2014, 02:21:38 PM »
PAT test machine have to be calibrated every year at a cost of about 60.

Online beko1987

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Re: DYSON VACUUMS WARNING.
« Reply #12 on: May 19, 2014, 02:27:02 PM »
Ah I see.

Do you find your machines sell better to Joe public with a pat test, or do you just do it for piece of mind and completeness?

Funny we are talking about this, our office is having the pat testers in this week, I've bought my phone charger in to be tested. Reckon I'd get rumbled if I bought a few vacuums in though...
Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline autovac01

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Re: DYSON VACUUMS WARNING.
« Reply #13 on: May 19, 2014, 02:45:33 PM »
Most of the public don't care about the PAT, but I work for many cleaning companies for whom its a necessity. Plus we get asked to do a few items for shows/ exhibitions etc.
 Also note from Institute of trading Standards "Sellers of second-hand electrical goods are responsible for ensuring the goods meet legal safety requirements and sellers may be liable to pay compensation if they sell unsafe goods and they cause injury or damage. If the equipment you are selling complies with an acceptable standard - for example, a British/European Standard - it will normally meet safety requirements."
I think the same applies for repairs. A PAT is your proof that you have done things correctly.

Online Madrat

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Re: DYSON VACUUMS WARNING.
« Reply #14 on: May 19, 2014, 06:01:01 PM »
I trained as a pat tester 2 years ago but never took the exam, its all a waist of time to be honest, the group that went through the exam the month before I was due to go said the exam was all theory, not 1 did any practical tests. 


 

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