Upstairs Radiators

[projectneon]

Out of the 5 radiators upstairs, only 1 works. All the others have been bled, using a radiator key. When I first did this, mostly only air was coming out, then after about 10 mins, water started to flow - and the radiator started to warm immediately. When the key was used to close the bleed part on the rad again, it started to cool, and wont warm again.

Have looked in the loft, and cant find a cistern either.

How can i sort this out ? There must be a cistern surely ? Its a combination boiler in the kitchen, and all downstairs rads work fine, hot water too. There was some knocking on the system, which I think was from the amount of air that was in the system.

Any help would be greatly appreciated, my son has just had a major ashma attack - only 2 years old, and they have said that it might be related to how cold it is in his room - just cant afford a plumber at this moment, what with Xmas just gone

 

[weareleeds]

You say it is a combi have a look ~ pressure guage if it is not @ 1 bar you will need to re-pressurise then vent rads again etc see ref section for details how to

 

[projectneon]

Yeah I have checked the pressure on the Combi boiler, and this is currently at just over 1.4 Bar