One of the radiators in my house is cold
If I bleed it and leave it bleeding into a bucket the rad gets hot BUT when I close the bleed valve it is cold again within 30 minutes
It as been like this for quite a while
All my valves have terms on
I have just had the boiler serviced but...
Thanks for all the ideas
The fault turned out to be the that the top up tap (the one you open when the red light comes on) had not been closed completely
Once again thanks for the replies