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fridge issue

Home › Forums › Members forum › Technical › fridge issue

  • This topic has 2 replies, 2 voices, and was last updated 2 years, 9 months ago by Brian & Denise Denly.
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  • April 9, 2018 at 4:33 pm #4755
    Brian & Denise Denly
    Participant

    Hi peeps I am new to the club and forum and indeed motorhoming i have a 2003 700 and i tried for the first time to hook up the electrics and found the fridge freezer blows the trip switch the other sockets etc are all ok i wonder if any of you has had a similar fault and if there is something simple i could check before i have to put it in for a repair many thanks and we hope to see you at future rallies
    brian and denise denly

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    • April 27, 2018 at 3:50 pm #4795
      Brian & Denise Denly
      Participant

      Wow thanks Dave I am sorry im only just replying as we have been out in the hobby for two weeks touring Scotland had a ball and the funny thing is after tree days I tried the 240 volt hook up and the fridge worked o without tripping the board this is my first trip and the hobby has been out in the elements all winter don’t know if something was damp (or wet ) any way many thanks for your response cheers

    • April 12, 2018 at 10:48 pm #4759
      Christine Lawson
      Participant

      Hi Brian and Denise
      If the fridge is OK on both gas and 12 volts (whilst travelling) and only trips the electrics, either the circuit breaker or RCD, when switched to mains 230 volts, then it can only be one thing that is causing the problem.
      There are two heating elements inserted within the heating coil at different places that come into play when not on gas. A 12 volt heating element which is powered only when the engine is running and a 230 volt heating element that is powered when plugged into the mains. I suspect that the 230 volt heating element is at fault. If it trips a single miniature circuit breaker (MCB) then it has a short circuit and is causing an overload. If it trips the main RCD, thereby switching off all 230 volt power, then it has developed a fault where there is a leakage to earth. This leakage to earth needs only to be minute to cause this particular fault. It is similar to a human being in contact with a live part and the path to earth being through the body. In this instance the RCD is performing as designed, to preserve life by limiting the current to a maximum of 30 milliamps for a prescribed period of time (max 30 milliseconds) and switching off the incoming power.
      Either of the above scenarios would mean that the 230 volt heating element requires replacement. It is not a difficult job to replace either element but does mean complete removal of the fridge / freezer which also entails disconnecting the gas supply to the fridge / freezer.
      Obviously, any work on gas should be entrusted to qualified person.
      Regards
      Dave (signed in as Christine)

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