water pump

Discussion in 'Compass Motorhomes' started by sunni4610, May 5, 2014.

  1. sunni4610

    sunni4610

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    Hi everyone,
    my waterpump runs continuous when I set pump switch to on.
    suntor 400 2004 even when taps are off. ?can enyone help,

    many thanks sunni 4610:Sad:.
     
  2. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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    The pressure switch on the pump sounds like it needs adjusting to turn the pump off

    Peter
     
  3. Gizmouk

    Gizmouk Funster

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    Fault will almost certainly be with the water pressure switch. Looks like:

    [​IMG]

    Either:
    1. The thumb screw on the top needs adjusting - trail and error
    or
    2. I had one seize up on our last motorhome as the previous owner never used the water system. Took the pressure switch to bits - there's a slide actuator connected to a diafram that'd got clogged up with limescale. 10 minutes scrapping and polishing, and all was working fine. Had to adjust the thumb screw several times to get it working just right. :thumb:
     
  4. peterc10

    peterc10 Funster

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    The previous posts assume that you have a pressure switch system to turn your pump on and off. However you may have the alternative system, which works using a microswitch on each tap to turn the pump on and off. If that is the case one of the microswitches is malfunctioning. To check which one you will need to remove the wires from each until the pump stops. Once you know which is malfunctioning you can replace it. Lots of threads on this forum about where to buy and how to replace - just do a search
     
  5. gloworm

    gloworm Funster

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    Could be a water leak, somewhere not visible, check your pipes under seating etc,

    Eric
    PS check your boiler train off is closed
     

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