Dyson Trips ECLB

Discussion in 'Electrics UK' started by racingmars, 8 Jul 2019.

  1. racingmars

    racingmars

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    Hi all,

    I live in a 1950s semi, and a few years back we had constant issues with the electric tripping. Especially with computer equipment. It was discovered that both ours and the neighbours were using the same feed, so they split the feed and put us on different phases (I am not a sparky, so I hope I am getting this right).

    Generally all is good now, aside from our new dyson, which trips the electric most times we try and use it. We have also borrowed a friends dyson, and that trips it as well. Is there any way of preventing this?

    Cheers
     
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  3. jelliottelectrical

    jelliottelectrical

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    Can you post a picture of your meter/consumer unit?

    Is it only the hoover that trips it?

    Always the same socket, or at different points in the house?
     
  4. racingmars

    racingmars

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    Hi,

    thanks for replying. It does it on any socket in the house. Generally it is just the Dyson, although on the rare occasion other things have tripped it as well. I remember that my google home sometimes trips it. However, with both our Dyson and my friends Dyson, it is probably fair to say that it is 8or 9 times out of 10 it will trip. The best way of getting the Dyson to work is to leave it on when you reset the trip switch, and this often works.

    Cheers

    20190708_184326.jpg
     
  5. flameport

    flameport

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    The circumstances you have described almost certainly mean there is at least one fault with the installation, and possibly several.
    The installation needs to be properly inspected and tested.
     
  6. jelliottelectrical

    jelliottelectrical

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    It could also be that the rcd itself is faulty, as it is an older unit, but as above it needs testing with a proper rcd tester.

    Out of interest how is the property earthed? Could you post a picture of your meter/cutout
     
  7. racingmars

    racingmars

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    There is an earth running outside the front door into the ground. I will post a piccy of the meter as soon as I get home.

    thanks both for the advice.
     
  8. jelliottelectrical

    jelliottelectrical

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    If that’s the case is there another trip switch between the meter and the consumer unit? As with a TT system as you have described the non rcd circuits on that consumer unit will not disconnect under a live - earth fault, generally speaking
     
  9. racingmars

    racingmars

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    The other bits in there 20190708_200338.jpg 20190708_200408.jpg
     
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  11. jelliottelectrical

    jelliottelectrical

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    Ah seeing that, it does appear to use the suppliers earth so disregard my last post. I would still recommend getting the rcd tested, as clearly something is not right
     
  12. winston1

    winston1

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    He said it was a Dyspn, not a Hoover.
     
  13. Taylortwocities

    Taylortwocities

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    Dyspn ?

    Is that a washing machine?
     
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  14. jelliottelectrical

    jelliottelectrical

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    I don’t think it makes much difference to the issue at hand though?
     
  15. bernardgreen

    bernardgreen

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    It is most likely that the start up current taken by the Dyson's motor together with a "fault" else where are combining to cause the ELCB to trip.

    The "fault" could be a genuine fault between Neutral and Earth or not a fault as such but a lot of mains filtering capacitors in equipment that provide a path from Neutral to Earth
    .
    For most loads the proportion of current that goes through the fault and by-passes the ELCB sensor is less than 30 mA hence the ELCB does not trip. But the start up current of any motor is higher than the rated running current and the proportion of that high current flowing through the fault will be higher and this may be enough to cause the ELCB to trip
    E_N_fault 2018.jpg
     
    Last edited: 9 Jul 2019
  16. crystal ball

    crystal ball

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    I had a call out to a similar fault, RCD tripping when TV or fridge were plugged in, eventually found a fault on shower circuit
     
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