Water pump help please

Discussion in 'Tech/Mech General' started by Cris, Aug 3, 2015.

  1. Cris

    Cris Read Only Funster

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    Hi,
    I am new to both motor homing and this site and am already in need of some help. On the families first trip out in our Compass Suntor 180 the pump appeared to stop working. The light is on at the control panel but there is no running water and no sound of a pump working. Is it easy to get at the pump, is it a DIY fix and does it even sound like a bust water pump? Sorry about all the questions but I am flailing around in the dark.
    Thanks,
    Cris
     
  2. Badknee

    Badknee Funster

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    Calm down Cris, don't flail around in the dark, put a light on and flail around. :LOL:
    Right, you have to find the pump first, it will prob be under a seat or in a cupboard at floor level.
    It is 12 volt so easy to mess with. There is a pressure switch that monitors the pressure in the water pipe, when the pressure drops as you open a tap the pressure switch notices this and turns the pump on. You need to check if there is 12v at the switch then 12v at the pump with a test meter first. If there's power at the pump it may have failed.
    Good luck.(y)
     
  3. The Wino

    The Wino Funster

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    Have you used it before? switch all the power supplies on at the control panel in case it is wired to another circuit and try some other taps it could be an on demand system rather than pressurised
     
  4. Cris

    Cris Read Only Funster

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    Thanks for the advice but it was working albeit at a dribble and then it stopped. We had a full fresh water tank and I don't think we knocked a switch that may have cut any circuit
     
  5. Don Quixote

    Don Quixote Funster

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    Firstly check all switches are on, easy to knock one off. Can you confirm battery is charged? lastly try switching off control panel leaving for a few minutes and switching on.
    Where are you parked up?
     
  6. teensvan99

    teensvan99 Funster

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    Do you know what type of pump it is. Is it pressure activated or worked by small switches in the taps. The more you tell us about the system you have the better people will be able to help.

    steve & ann. --------- teensvan
     
  7. SC 05 OUT

    SC 05 OUT Funster

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    first things first

    is the main 12volt power ON

    is the pump power switch ON

    Is there water in the TANK

    does the pump RUN (ie make a noise) when you open a tap


    REPORT BACK and we can help
     
  8. Cris

    Cris Read Only Funster

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    Thanks everyone. There is water in the tank, the main 12 volt power is on, the pump power switch is on and lights up and the pump doesn't run - i've checked the fuse and that is fine and have possibly located the pump - under a seat there are two cables that seem to disappear into the top of the fresh water tank - but can't see an easy way to get it out. I don't know whether the system is pressure activated or operated with micro switches but neither tap works - is it likely that both switches have gone at the same time?
     
  9. TheBig1

    TheBig1 Funster Life Member

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    no both switches wont fail at the same time. in the back of my mind I seem to recall that your van will have a pump inside the tank(submersible). otherwise its going to be near the tank. just follow the cold water pipe from the tank.

    first try tapping the pump whilst its supposed to be running with the handle of a screwdriver in case its stuck
     
  10. funflair

    funflair Funster Life Member

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    Hi Cris

    Not likely that two micro-switches have gone at the same time, check under the taps in the kitchen or bathroom and if there are no wires it is not a micro-switch system anyway. You said that the pump was working but only a dribble so now that it does not work at all it would be reasonable to suspect the pump has failed.

    Martin
     
  11. Cris

    Cris Read Only Funster

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    Cheers for the advice. I will spend the evening following pipes and getting to know the inner workings of my new home on wheels
     
  12. TheDentons

    TheDentons Funster

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    Now we are on the subject anyone know of a quiet one?
     
  13. teensvan99

    teensvan99 Funster

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    Hi Chris.

    It sounds as if you do have a submersible pump. You will need to remove from tank. Sometimes not easy. It has a spinning wheel at the bottom of it called an impellor. It should spin freely and run fast when you put 12v on it. If it runs slowly or not at all change it. There will be a size and output on it. get one the same or better. About £30-£40.

    steve & ann. ---------- teensvan
     
  14. maxi77

    maxi77 Funster

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    Are you sure the wires going into the tank are for the pump, they could befor a water level guage. Pressure controlled pumps are not usually submersible. Tap switched pumps will have wires coming from the underneath of the taps so that is easy to check. Did the pump when it was working whiz or whine or did it make a rapid pop pop type of sound. Whir whine sounds are likely to be switched, and the pop pop type pressure controlled as they are positive displacement pumps which move a specific ammount of water with each pop, and do not allow flowback so the pressure is maintained.

    Good luck though it sounds like the pump.
     
  15. Cris

    Cris Read Only Funster

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    Thank you everyone for all your help. One pump replaced and two taps pouring out fresh water at the pull of a lever - happy days.
     
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