Radiators upstairs keep going cold

[kingston]

Right, cheers for solving the white water thing, anyway, Baxi 105HE combi condensing boiler, radiators downstairs work fine, i have 3 upstairs one of which works ok, the other 2 are cold every night, then i have to bleed them, which makes them hot but also makes the pressure drop on the boiler, the guy who put the boiler and radiators in says there is no problem but i keep having to keep ringing him every week cos the pressure drops below 0.5 and he just comes and puts the pressure back up

Any ideas why i keep getting air in the system and how to solve it

Cheers

 

[Bahco]

Find the leak!

 

[kingston]

How do I find the leak?

Is it leaking air pressure or water?

Is it easy to fix?

Will the upstairs radiators work then?

Hope you can help

 

[Bahco]

You will have to go over every joint until you have found the leak and rectified it.

Your boiler will keep losing pressure. When this has been cured, a balance of your system will ensure the upstairs rads will work.