Water pump

Discussion in 'The Beginner' started by Brightonian, Mar 11, 2016.

  1. Brightonian

    Brightonian Funster

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    Hi all, hope someone can advice?
    After draining down water tank and boiler though winter ( see my other thread ) I managed to get pump working, (gave it a few wacks with a hammer) so water runs out of both hot and cold taps.
    My question is after turning pump switch on at control panel should the pump only make a noise pumping when taps are on or will it make pumping noise all the time the pump switch on control panel is turned on?
    Van is a 1999 Bessacarr E600
    Thanks in advance
    Pete
     
  2. etap

    etap Funster

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    normally water pumps only pump when the taps are on or there is not enough water in tank or there is a leak.
     
  3. Brightonian

    Brightonian Funster

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    Checked for leak can't see one.
     
  4. Brightonian

    Brightonian Funster

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    One taps drips a bit could this be the problem? I have kept hold of dripping tap so its turned off but pump still keeps running.
     
  5. Brightonian

    Brightonian Funster

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    There is plenty of water in tank.
    Does it take time to go from tank to boiler though?
     
  6. TerryL

    TerryL Funster

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    Boiler takes around 11 litres so will take a minute or so to fill. Check the automatic anti frost drain valve hasn't opened although if it has you'll get water draining from underneath. Failing that you're either losing pressure somewhere or the pump pressure switch may be stuck. If you can get at it a sharp tap (no don't belt it!) on the pump housing might free it.
     
  7. etap

    etap Funster

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    It could be the tap that is leaking causing problem, maybe there is another leak? Are all connections OK as air can also cause pump to operate.
     
  8. Brightonian

    Brightonian Funster

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    Will give it a sharp tap tomorrow and see if it helps
    Followed as best i could the route of hoses from tank to boiler, no leak. All connections seemed good unless it's leaking where it runs under fridge or where i can't see under floor:(
     
  9. mitzimad

    mitzimad Funster

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    mine does the same from time to time runs with a slightly different sound no leaks full of water i suspect its a diaphram problem but im waiting for it to fail and it hasnt in 3 years we just switch of and switch on again
     
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  10. The Wino

    The Wino Funster

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    Check the clear plasic bowl on top of the pump in case it is cracked your enthusiastic fix may have dammaged it!!!
     
  11. Brightonian

    Brightonian Funster

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    Many thanks to all for the help i now have both hot and cold running water..........BUT
    I have a leak somewhere around boiler. I have felt under and around boiler inside van and is dry, but there is dripping water outside underneath where boiler is. It's only dripping when water heater is on.
    If its dry around boiler inside van ( i can get my hand under boiler) how is it wet outside van?
     
  12. pappajohn

    pappajohn Funster Life Member

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    That sounds like the pressure relief valve is leaking.
    It should only allow water out if the boiler overheats and internal pressure exceeds the valves pre set pressure.
    Not a servicable item so needs renewing.

    Theres a chance it could be the boiler/water tank drain valve...possibly more chance...isnt closing.
    But that would leak whether the boiler was on or not as long as the pump was turned on.
     
    Last edited: Mar 13, 2016
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  13. Brightonian

    Brightonian Funster

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    Thanks @pappajohn don't think it's the water tank drain valve as it's on the other side of van. I did check the screw plug thingy to empty water from boiler was up tight and no water coming from there so looks like new boiler.
    Any ideas best place to buy one?
    Pete
     
  14. gus-lopez

    gus-lopez Funster

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  15. Autowbars

    Autowbars Funster

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    Try opening taps whilst pump running, it may be an air lock.
     
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  16. Brightonian

    Brightonian Funster

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    Well i think i have found the problem! The waters coming from the air valve thing above the boiler drain plug outside the van and running down the side and under van.
    20160314_162115.jpg
    And the hotter the water gets the quicker it comes out. I hope this is all thats wrong!:cautious:
    I shall buy a new valve fit it and see:unsure:
    If i can get one?

    Oh! just had a thought is that the pressure valve that @pappajohn and @gus-lopez are talking about?
     
    Last edited: Mar 14, 2016
  17. Motorhome Man

    Motorhome Man Funster

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    Hi Brightonian just a thought, after you refilled tank and put pump on did you open all sets of taps ie hot and cold on each outlet 1 after each other to get all air out of system. this does take a while for the hot outlets as you have to remove all the air from the water heater. I've known the relief valve to blow because there is still air in the boiler. Luke
     
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  18. Brightonian

    Brightonian Funster

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    I did let them run but only for a few seconds. Water flowed quite fast and full out of taps, will try again tomorrow and let taps run for longer.
    PS do you think that maybe i should just buy a new relief valve i guess it won't cost a lot?
     
  19. Motorhome Man

    Motorhome Man Funster

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    Hi brightonian, yes try a new relief valve, they are readily available on ebay approx £10. Search either Carver or Truma relief valve. Let us know if all is well after new valve. Luke
     
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  20. Brightonian

    Brightonian Funster

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    Just ordered, Thanks
    Pete
     
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