Not a real Reverse Polarity Thread

Discussion in 'Tech/Mech General' started by Zigisla, Dec 22, 2015.

  1. Zigisla

    Zigisla Funster

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    Just bought a submersible pump from Amazon to help with the fill of the Fresh tank. Can anyone spot the mistake or is it me?

    IMG_0298.JPG
     
  2. scotjimland

    scotjimland Funster Life Member

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    In my Hymer , and probably all German built vans, the wiring colours for 12v dc

    the Brown is negative. - Blue positive + ..
     
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  3. Leftlegger

    Leftlegger Funster

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    are they from germany?
     
  4. Lenny HB

    Lenny HB Funster

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    Looks OK to me standard Motorhome wiring colours.:xsmile:
     
  5. Lenny HB

    Lenny HB Funster

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    If it was from the UK it would be Blue positive White negative :xsmile:
     
  6. Badknee

    Badknee Funster

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    Hmm, that could fool a stupid person and it would have me. :xdoh:
     
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  7. NickNic

    NickNic Funster Life Member

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    And of course it makes no difference whatsoever what colour the wires are as long as they join the right points together.
     
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  8. scotjimland

    scotjimland Funster Life Member

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    it caught me out.

    when I changed the fresh water submersible pump .. didn't take note.. so put the new one in.. Blue to Blue and Brown to Brown.. as you do.. :xsmile:

    WRONG . :xblink: pump ran but the delivery was feeble.. then it twigged.. :xdoh: changed them around and bingo.. fast pump.. and all is well in the shower room again..
     
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  9. Zigisla

    Zigisla Funster

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    Don't know if it from Germany or not; here it is, but it certainly has me confused. This is not a MH pump, but a general submersible used to transfer diesel / Water etc so would be used to connect to any 12v battery. If this is standard MH wiring, I have sooo much to learn still. Everyday is a school day on here. Still it will either suck the water up or blow big bubbles when I connect it.:LOL:
     
  10. eddievanbitz

    eddievanbitz Trader - Funster

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    No crocodile?
     
  11. Frentchy

    Frentchy

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    Cheap tissue paper ?? no coloured Christmasy stuff on it:nod::xThumb:
     
  12. Zigisla

    Zigisla Funster

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    Only Finest Tesco Kitchen roll gets used in this household. Christmas. Don't have time for that. Got new MH to play with:xgrin:
     
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  13. Zigisla

    Zigisla Funster

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    Rigged up the pump today to check it out and before I connected it, checked the LB and low and behold a Brown cable - to something, connected to the -Ve. Connected pump as per clip colours and pumps just fine. Why confuse the issue / me:unsure: changing the colours overxroll:
     
  14. Stealaway

    Stealaway Funster

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    I was asked by a mate recently to wire a 3 phase machine.
    Gone are the days when red/white/blue are the lives and black for neutral.
    I had to look at another machine to discover its now brown/black /grey and blue is neutral.

    WHY ?
     
  15. pappajohn

    pappajohn Funster Life Member

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    A new thread starter.......DC reversed polarity :xeek:


    12v wiring doesnt have a colour code and the pump will run the correct way regardless, unless it has a reversible motor which it hasnt.
     
  16. tonyidle

    tonyidle Funster

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    If it's a submersible pump reversing polarity will reverse the pump. It is a centrifugal pump so it will pump liquid whichever way it runs BUT the outlet port is angled so it will flow best when running in the correct direction. And, entirely separately, why would anyone think that a wire colour designated as mains live has any similar meaning when used on a DC supply? DC does not involve 'live' and 'neutral': it has +ve and -ve either of which can be designated 'earth'.
     
  17. scotjimland

    scotjimland Funster Life Member

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    oh no it won't.. see my previous post..
     
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