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3.0 barr shower pump. lets see how good yas r!!

  • 11-08-2010 05:57PM
    #1
    johnjoe 123
    Registered Users, Registered Users 2 Posts: 138 ✭✭


    this should test a few of yas! was on about this nearly new 3 bar twin impellar pump spent an hour this evening set up a tank in the shed for testing it. theres nothing wrong with the flow/reed switches, nothing wrong with the printed circuit board and its only the right hand side of the pump that continues to pump when the out valve is closed.


Comments

  • #2
    Joey the lips
    Registered Users, Registered Users 2 Posts: 10,262 ✭✭✭✭Joey the lips


    Switch the switches around. If it still happens its the circuit board....


  • #3
    Carlow52
    Closed Accounts Posts: 2,389 ✭✭✭Carlow52


    johnjoe 123 wrote: »
    this should test a few of yas! was on about this nearly new 3 bar twin impellar pump spent an hour this evening set up a tank in the shed for testing it. theres nothing wrong with the flow/reed switches, nothing wrong with the printed circuit board and its only the right hand side of the pump that continues to pump when the out valve is closed.

    On a twin impeller pump how can the rhs continue to pump only: does it have a differential gear box to stop the LHS pumping?:confused:


  • #4
    K.Flyer
    Registered Users, Registered Users 2 Posts: 8,560 ✭✭✭K.Flyer


    You dont say if its positive or negative head. (neg. has pressure vessel)
    Disconnect the reed switch from the offending side at the PCB. It will be either the two most central wires or the next two out. If the pump stops its deff the reed thats stuck. Usually I find that a small piece of grit or plastic has lodged itself against the float in the outlet chamber and this is keeping the reed active. If the pump keeps going after doing this then the relay on the board is possibly sticking, giving it a gentle tap sometimes works. (Although the modern relays are better than to older ones) If its neg head you may have a prob with the pressure switch but thats unlikely.
    It may also be one of the non-return valves in the outlet chambers below the reed switches not closing fully. If one is partially open then you will loose pressure back to the supply tank thereby causing the pressure switch to keep the pump active.


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