One radiator will not work

[PCAnimal]

Hi,
Over the summer we drained the system and refilled it (plumber drilled hole in pipe). Since firing up the heating one radiator will not work.
I've gone through the balance and the final radiator still does not work.

The numbers indicate the order in which they heat up. The kitchen front is the one which won't work

I've bleed the system and can't find any more air.

Any suggestions please

 

[muggles]

Turn every radiator off except the one that's not working and see if that gets it going

 

[PCAnimal]

Hi I did this on the thermostats and I got a small amount of heat to it. However when I turned the rads back on again it stopped

 

[muggles]

Patience, wait for it to heat up fully before turning the others back on...

 

[PCAnimal]

I will try again tonight. I'm thinking of removing the rad and draining it. Give it a clear out and see if that helps the flow