1 large cold radiator in front rm

[daddy86lee]

Hi,
Can any body tell me the answer to my question.
I have 1 large cold radiator down stairs, i have hot water going into the pipe and basically stopping at the compression nut. I took my radiator off and have drained it and flushed it through with a hose, which released alot if black tar textured water, i then put my radiator back on and turn the valves back on and bled it too. this has still not worked . the pipe going away is also cold .

 

[tomy]

did you check the valves were ok and not blocked or stuck, if they were fine then close a valve on every other radiator in the house and try and force the heating through the rad this may clear an airlock

 

[daddy86lee]

Thanks for the quick reply, ill have a go at that tomorrow morning, just couldnt understand why the hotwater stopped at the nut where you screw the rad onto the pipe, and when i bled it, only cold water came out,

 

[daddy86lee]

Hi, i tried turning off the valves on all the other radiators this morning, this was successful and my radiator which was cold then heated up, i left this to heat up for a hour then turned on all the other valves on the radiators, the radiator then went cold again whilst all the others gave out there heat as normal

 

[TonyW2]

Try balancing the radiator circuit. (See Wiki)

(Presume room is cold and not a TVR?)