cold rad. in 1 room only.


Postby mikeg » Mon Nov 17, 2008 9:48 am

Please can anyone help, In my system i have 1 radiator that stays cold. The water gets hot uptill the thomostat,but no futher. I have taken the thomostat off and cleaned around to try and make a connection but with no luck. Do i just need to change the thomosat or is there something else i can do. The system is part of a Worcester Bosch 24 combi boiler. The rad that dosen't work is on the middle floor. the rad on the next floor works ok.
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Postby htg engineer » Mon Nov 17, 2008 5:13 pm

Bleed the radiator with the boiler turned off, try pressing the pin in the TRV by hand - still nothing ? try a couple of sharp knocks on the side of the valve with a hammer or wrench.

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Postby mikeg » Mon Nov 17, 2008 5:38 pm

Thank you. Sorted in 2seconds.
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