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Possible Circulating Pump Failure

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  • 22-04-2013 9:56am
    #1
    tommyh1977
    Registered Users Posts: 350 ✭✭


    Hi. I have 2 methods of heating my house, Boiler Stove & Oil CabinPak. My boiler stove pump heats all rads without any problem, but my cabinpak pump fails to get the last 2 rads even lukewarm, as if it doesn't manage to pup to them. As expected the rads the oil is managing to heat are hotter than the boiler stove. Could this be possible pump failure or wrong pump in cabinpak. I only bought this house so don't know if oil ever heated these last rads. Only thing I do know is oil pump was seized when I first fired the boiler, a few taps and it took off. Boiler Stove is a new fit with a brand new Wilo 6 mtr pump. Any thoughts appreciated.


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    #2
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    tommyh1977 wrote: »
    Hi. I have 2 methods of heating my house, Boiler Stove & Oil CabinPak. My boiler stove pump heats all rads without any problem, but my cabinpak pump fails to get the last 2 rads even lukewarm, as if it doesn't manage to pup to them. As expected the rads the oil is managing to heat are hotter than the boiler stove. Could this be possible pump failure or wrong pump in cabinpak. I only bought this house so don't know if oil ever heated these last rads. Only thing I do know is oil pump was seized when I first fired the boiler, a few taps and it took off. Boiler Stove is a new fit with a brand new Wilo 6 mtr pump. Any thoughts appreciated.

    Maybe your oil is heating the stove. If the stove is piped incorrectly, the boiler in it will heat when the oil is on. Try this... With both systems off turn on the oil, check the top pipe at the stove. Is it warm??


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    #3
    tommyh1977
    Registered Users Posts: 350 ✭✭tommyh1977


    No, NRV's fitted to prevent this.


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    #4
    sullzz
    Registered Users Posts: 2,409 ✭✭✭sullzz


    What size pump is on your oil boiler , if its heating the others fine except the last 2 ot might be a balancing issue , first try shutting off a few other rads to make sure that these 2 rads do in fact heat at all.


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    #5
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    tommyh1977 wrote: »
    No, NRV's fitted to prevent this.

    Maybe the balance valve on the cyclinder is open. Close it fully and open 1 turn


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    #6
    tommyh1977
    Registered Users Posts: 350 ✭✭tommyh1977


    Dtp79 wrote: »
    Maybe the balance valve on the cyclinder is open. Close it fully and open 1 turn

    Would this be the gate valve on the bottom of cylinder coil?

    Thanks for info.


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    #7
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    tommyh1977 wrote: »
    Would this be the gate valve on the bottom of cylinder coil?

    Thanks for info.

    Ye that's the one. Is it fully open?


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    #8
    tommyh1977
    Registered Users Posts: 350 ✭✭tommyh1977


    Dtp79 wrote: »
    Ye that's the one. Is it fully open?
    It sure was, I've wound it down fully then open about a turn maybe turn and half. Thanks for the tip, saves buying a new pump.


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    #9
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    tommyh1977 wrote: »
    It sure was, I've wound it down fully then open about a turn maybe turn and half. Thanks for the tip, saves buying a new pump.

    Did the heat go to the rads?


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    #10
    tommyh1977
    Registered Users Posts: 350 ✭✭tommyh1977


    Dtp79 wrote: »
    Did the heat go to the rads?

    I'll let you know, couldn't bring myself to fire the oil this smashing day:)


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    #11
    tommyh1977
    Registered Users Posts: 350 ✭✭tommyh1977


    Problem solved, it was the valve, thank you!!!


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    #12
    Dtp79
    Closed Accounts Posts: 2,097 ✭✭✭Dtp79


    tommyh1977 wrote: »
    Problem solved, it was the valve, thank you!!!

    No bother


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