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Overpumping

 
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allmond



Joined: 17 Dec 2002
Posts: 1

PostPosted: Tue Dec 17, 2002 10:25 pm    Post subject: Overpumping Reply with quote
Just occasionally my central heating pumps excess water up the expansion pipe into the header tank. Not good as it leads to steam in the loft!! The pump is set at the lowest speed. I have experimented and can solve the problem by partially closing the gate valve above the pump, but this is obviously not a permanent solution. Confused

Any help appreciated.

Jamie
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GEORGE COTTRELL



Joined: 17 Jan 2003
Posts: 2

PostPosted: Fri Jan 17, 2003 2:25 pm    Post subject: Reply with quote
I have had this problem also, have found that the air may not be venting properly, the last radiator(might be the first) acts as a vent to the expansion tank, check to see if there is any air trapped in radiator.
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