Ok so after all the f**kin about, every other day or so i need to bleed system?
Why am i getting build up of air in upstairs rads?
I put anti[-corrosion stuff in, i can hear water running through rads every now and again, it goes when i bleed?
is there a set way im missing to bleed, is...
the steam was from the 'overflow' pipe, the one that just points in to the header tank,
went around the rads again, let some more air out a couple of them and it appears to be working ok. for now.
im certain pump is working fine, lower rads nice n warm,
is there a bleed valve on the...
Summary: I fitted a new radiator in a 15 y/o Y plan system now steam comes from header tank when CH called.
The method:
1st i drained system to nearly empty.
i fitted new rad.
i bleed lower rads
i bleed upper rads
i bleed pipes in loft
for some reason i put 3 way switch into manual (?)...