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Water pump short cycling

  • 08-12-2013 12:10pm
    #1
    theexis
    Registered Users Posts: 131 ✭✭


    Hi,

    over the last week or so our cold water pump has started short cycling. Up to this point if a cold tap was turned on/shower ran the pump would stay on continuously until tap/shower was closed then it would shut off. Now the pump is kicking in and out every 5 seconds or so resulting in a pulsing water pressure.

    Based on some other threads I found and checked the pressure on the pump 'tyre valve' (reading 3 bar), and a pressure vessel connected on a pipe coming from the pump (around 2 bar).

    Any suggestions on if these pressures seem reasonable and anything else I can check, or does it sound like a pump issue.


Comments

  • #2
    theexis
    Registered Users Posts: 131 ✭✭theexis


    Any suggestions for above? Thanks.


  • #3
    K.Flyer
    Registered Users Posts: 8,565 ✭✭✭K.Flyer


    Did you switch off the pump and leave your cold tap to run off before checking the expansion vessel?


  • #4
    corkgsxr
    Registered Users Posts: 3,404 ✭✭✭corkgsxr


    Vessels probably low. As sed turn off the pump and run the tap before checking pressure of the vessel. If its a 3 bar pump then 2-2.5 bar in the vessel


  • #5
    Nedser101
    Registered Users Posts: 151 ✭✭Nedser101


    Maybe n r v could be nackered


  • #6
    MOTM
    Registered Users Posts: 412 ✭✭MOTM


    What is the pump make and model? I've the same problem with mine.


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