i think my pipe to the expansion vessel is blocked?
i have an icon 23t.
the heating comes on the pressure rises to about 3 bar releasing all the water out of the release valve.
then i have to fill the system again to make it work.
the old boiler i had did the same and the pipe to the vessel was blocked.
as the vessel is placed on the back how easy is it to remove the pipe to check it.
midas, October 2010
