1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Samsung Fridge Freezer Tripping Circuit Breaker (Earth Neutral Fault)

Discussion in 'Electrics UK' started by Imtiaz Hasham, 28 Oct 2018.

  1. Imtiaz Hasham

    Imtiaz Hasham

    Joined:
    28 Oct 2018
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    Hello there,

    First post as I can't find any similar problems on the forums here.

    A few days ago, woke up to no electricity around the house. Saw the MCB main connection had tripped and wouldn't come back on. Did the usual checks and turned off all appliances etc. and cut a long story short, found the fridge freezer causing the fault.

    This afternoon, checked the flex cable had some chaffing in it, cut it and to test, plugged in live and neutral into an extension cable and tested and it worked fine (didn't plug the earth cable in).

    Connected a 13A top plug and plugged it in and the circuit blew. Only difference between the first and second time was the earth cable plugged in.

    I therefore isolated the earth cable from the top plug and tested and lo and behold, it started working! This proves that when the earth cable is connected from that appliance, it's tripping the MCB.

    Have disconnected the fridge freezer as am not sure what is causing this and how to go about fixing and if necessary, whom to call out to repair this fridge freezer.
     
  2. dishman

    dishman

    Joined:
    8 Jul 2008
    Messages:
    1,108
    Thanks Received:
    88
    Location:
    Nottinghamshire
    Country:
    United Kingdom
    I've asked a mod to move your post to the Electrics forum....

    They should be quicker to respond
     
    • Thanks Thanks x 1
  3. EFLImpudence

    EFLImpudence

    Joined:
    7 Jul 2010
    Messages:
    28,899
    Thanks Received:
    3,089
    Location:
    Retired to:
    Country:
    Portugal
    Was it an MCB that tripped, or an RCD? RCDs have a test button.

    MCBs do not trip with Neutral to Earth faults - they do with Live to Earth faults.
    RCDs trip for both.
     
  4. JohnW2

    JohnW2

    Joined:
    28 Jan 2011
    Messages:
    41,286
    Thanks Received:
    2,558
    Location:
    Buckinghamshire
    Country:
    United Kingdom
    Indeed - but, despite the title of this thread, the OP does not appear to have done anything which shows that it is a N-E, rather than an L-E, fault, since all he has done is to disconnect the earth.

    To the OP: What you are doing is dangerous - since, if there is a 'Live to Earth' fault, when you try the fridge-freezer without an earth connected (and it 'works'), the entire case of the appliance is probably live.

    Kind Regards, John
     
  5. Imtiaz Hasham

    Imtiaz Hasham

    Joined:
    28 Oct 2018
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    @EFLImpudence - Thank you for clarifying. Once I did my tests and deduced that the Earthing being connected is tripping the Main Circuit Board. As soon as I found the cause, I have disconnected the appliance.

    When I connect with earthing, all the other fuses pon the board are fine but the main circuit breaker trips (which is why I presumed it was Neutral to Earth fault).
     
  6. Imtiaz Hasham

    Imtiaz Hasham

    Joined:
    28 Oct 2018
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    What is my next step - would it be something in the appliance or get a professional in to look into it?
     
  7. securespark

    securespark

    Joined:
    11 Jan 2004
    Messages:
    33,025
    Thanks Received:
    977
    Country:
    United Kingdom
    Yes.
     
    • Thanks Thanks x 1
  8. Imtiaz Hasham

    Imtiaz Hasham

    Joined:
    28 Oct 2018
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    I really appreciate all your help and support
     
  9. EFLImpudence

    EFLImpudence

    Joined:
    7 Jul 2010
    Messages:
    28,899
    Thanks Received:
    3,089
    Location:
    Retired to:
    Country:
    Portugal
    What is tripping?

    Picture if you're not sure.
     
  10. winston1

    winston1

    Joined:
    11 Jan 2010
    Messages:
    4,839
    Thanks Received:
    329
    Location:
    London
    Country:
    United Kingdom
    You cannot make connections to a plug top. It is only a cover or lid.

    One assumes you mean a plug.
     
  11. ericmark

    ericmark

    Joined:
    27 Jan 2008
    Messages:
    14,032
    Thanks Received:
    1,220
    Location:
    Llanfair Caereinion, Nr Welshpool
    Country:
    United Kingdom
    It is likely there is a defrost element which are know for absorbing moisture and tripping a RCD. However our Samsung has a 10 year warranty on inverter and motor so really no option but call number in the warranty paperwork or you will invalidate the warranty, I don't know how likely it is that the inverter could have an earth fault? It may have a filter which may have a faulty capacitor.

    The fridge freezer today is a complex device, with a power cut ours shows how warm it got before power returned, and the three phase motor starts up without any shakes or jerks that one saw years ago, although one motor the fridge and freezer are independently controlled and there is nothing stopping the motor from having a variable speed.

    If the defrost element is the fault, often the unit will run for some time before it is activated then it trips out.
     
  12. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page