Water pump fuse keeps blowing

Discussion in 'Motorhome Chat' started by cainee, Oct 21, 2012.

  1. cainee

    cainee Read Only Funster

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    I have recently bought a 1994 Hymer 564 and on our second trip out the water pump fuse kept blowing the second the power went on. Is this something that anyone has experience of. I was intending on swapping out the water pump but nor sure if this is the problem.

    Help please.:Sad::Sad::Sad:
     
  2. jonandshell

    jonandshell Funster

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    the only way to find out is to disconnect the water pump, keeping the wires insulated, as close to the pump you can, replace the fuse and attempt to run it. If the fuse blows it is a wiring fault, if it doesn't it is the pump!:thumb:
     
  3. cainee

    cainee Read Only Funster

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    can you explain this a bit further, not sure what you mean by disconnect and then keep as close to the pump as possible?
     
  4. pappajohn

    pappajohn Funster Life Member

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    Locate the pump the remove the live (pos +) wire from the pump and wrap a bit of tape round the terminal so it cant touch to earth....if not sure which is live then remove both and tape the ends (separately)

    then replace the fuse.

    turn on the pump switch or open a tap

    if the fuse still blows theres a fault on the wiring

    if it doesnt blow the pump has a fault and probably needs replacing.
     
    Last edited: Oct 21, 2012
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  5. cainee

    cainee Read Only Funster

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    Excellent. I thought that is what was required by just wanted to double check. Thank you all.
     
  6. jonandshell

    jonandshell Funster

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    I just read my post, I can see why I caused confusion!

    Must retake my GCE english.............:Rofl1:
     
  7. pappajohn

    pappajohn Funster Life Member

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    Stay as you are....perfectly acceptable post, in funster terms at least :Laughing:
     
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  8. JockandRita

    JockandRita Funster Life Member

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    If the problem is identified to be on the pump side, sometimes the little impeller inside becomes stuck, (especially of not used for a while).
    Removing the little filter from the base of the pump, and manually rotating the impeller with a small screwdriver or skewer, can often resolve the problem. It's certainly worth a try, if it's the pump at fault. :Wink:

    Cheers for now,

    Jock.
     
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