boiler presure

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    • 24 Dec 2002 at 12:47 am #276119
      Avatar photobruniezm

        oil fired boiler started over presureing when it calls for heat. unit uses a overhead expansion tank,do i need to drain it? it seems full

      • 24 Dec 2002 at 4:19 am #293464
        Avatar photoHarold Kestenholz
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          Yes, you need to drain it. Cloae off the valve to the tank, drain it, open the valve slowly.

        • 24 Dec 2002 at 1:09 pm #293465
          Avatar photojack66
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            thanks harold,

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