Our central heating radiators on the ground floor have one by one stopped
getting hot.
They have all been taken off the wall and been flushed out with water, but
this hasn't
made any difference. We have mircobore copper piping, we also have a combi
boiler.
The Radiators upstairs always get hot. The central heating system is about
30 years old.
The combi boiler is about 10/11 years old. Does anybody have any idea what
the problem is,
and how we can resolve it.