Single cold radiator with cold pipes


Postby williame » Sat Dec 27, 2008 6:52 pm

I have one downstairs radiator that is cold, the rest of the radiators in the house are hot. We have bled the radiator and it has had no affect. Has anyone any suggestions as to what coul dbe the solution to this problem?
Many thanks in advance, EW
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Postby plumbbob » Sat Dec 27, 2008 8:38 pm

Either the pipes are blocked with sludge or the valves are turned off. If you have a thermostatic valve fitted it may be jammed shut. Remove the head and lightly tap the little pin in the centre of the valve. This may free it. When pressed, it should move up and down about an eighth of an inch.
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Postby Steve the gas » Sun Dec 28, 2008 8:27 am

Hi EW,

It's the valve(s), TRV or normal?
Make sure the pin is up when you take the head off, classic pin stuck syndrome and not enough info.
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Postby williame » Tue Dec 30, 2008 6:46 am

Hi Plumb Bob and steve the Gas! Many thanks for your replies: once I got the right size of spanner your advice worked a treat: WD40 helped too. Erica
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