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Boiler pump constantly on!

  • 14-03-2013 9:56am
    #1
    Cableguy
    Registered Users, Registered Users 2 Posts: 288 ✭✭


    Hi there,

    Hoping someone can help by answering this question.

    Should the pump above a gas boiler be permanently on?

    It’s the black pump above the white boiler in the pic attached.

    The reason I ask is it was replaced yesterday and its making a continuous humming sound since as it pumps water even when the gas boiler is off!!

    I never noticed this with the previous pump which seemed to only make a noise when the gas boiler was on.

    Last night we could even hear it from the next room!

    Should I get back on to the boiler company and ask them to check it?

    This is just day 1 and its already annoying me. Also if these things use much electricity my bill will go through the roof.

    Thanks for reading.
    B.
    Tagged:


Comments

  • #2
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Probably wired incorrectly. Live & neutrals mixed up.


  • #3
    gdavis
    Registered Users, Registered Users 2 Posts: 771 ✭✭✭gdavis


    nice position for timeclock!


  • #4
    Cableguy
    Registered Users, Registered Users 2 Posts: 288 ✭✭Cableguy


    shane0007 wrote: »
    Probably wired incorrectly. Live & neutrals mixed up.
    !!! Id imagine that would cause a severe fault!

    Anyway turned out to be the PCB controller board.

    This was replaced and the pump now stops automatically.


  • #5
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Cableguy wrote: »
    !!! Id imagine that would cause a severe fault!
    Pump would work perfectly on reverse polarity, causing no damage.


  • #6
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Cableguy wrote: »
    The reason I ask is it was replaced yesterday and its making a continuous humming sound since as it pumps water even when the gas boiler is off!!
    Odd how it only began after replacing the pump!


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  • #7
    JohnnieK
    Registered Users, Registered Users 2 Posts: 2,526 ✭✭✭JohnnieK


    I've come across that a good few times with baxi Solo's.


  • #8
    DGOBS
    Hosted Moderators Posts: 3,496 ✭✭✭DGOBS


    Shane, would say the old pump had knackered the board (or even the old board had run the pump until it burnt out!)
    Sneeze near a Solo pcb and you have to change it!


  • #9
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    DGOBS wrote: »
    Shane, would say the old pump had knackered the board (or even the old board had run the pump until it burnt out!)
    Sneeze near a Solo pcb and you have to change it!
    Very possible. Just that it is an external pump not integrated to the PCB but to the ouptut wiring connection of the boiler.


  • #10
    DGOBS
    Hosted Moderators Posts: 3,496 ✭✭✭DGOBS


    AFISIK without checking, it still controls overrun etc via the pcb


  • #11
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    You are probably right. Does that non-system boiler have pump over-run? Good to know if it does and that is what created the PCB fault.


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  • #12
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    DGOBS wrote: »
    AFISIK without checking, it still controls overrun etc via the pcb

    You are absolutely correct. PCB controls over-run & frost protection.


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