Hi,

Can anyone help.

I have two radiators upstairs and two down stairs that are cold.

These started off with one then moved around the house to another then
downstairs. Over a period of 12 month it has gone from one cold to four
now cold.


Tried Bleeding every one and closing the termostats on all hot ones but
no success,

any ideas what this could be. Is suspect it may be the pump but not
sure..

How much are these to replace.. ?


cheers

P