System heating up most but not all radiators

[shabbaranks]

Just wanted to say thank you as Ive managed to sort out the problematic radiators (well most of them) turning the ones that were working forced the hot water and air into the none working ones. Once bled they heated up nicely. Although the radiator which wouldn't bleed is still being a rascal but it feels hot down by the trv so it probably just needs draining properly.

I had a look at the bleed valve (picture attached) and the radiator definitely needs draining to remove the valve I can't see how else its achieved

 

[terryplumb]

If you close both that rads valves ,it will still be full of water ,however if you unscrew the bleed valve a little, pressure will be reduced and some water will trickle out, which you can contain, and it will cease to flow completely. You can then remove the bleed valve .

 

[shabbaranks]

Ah ok I thought you meant you can take a portion of the bleed valve out. I did realise that you can release some water to remove it and will give it a go