how can i fix ?

Annie wait for your new boiler ?

marcus
January 2011

a stiff cold water tap

ian
January 2011

Sounds as though the the pipes to the cylinder may be
air locked. Have the valves to the cylinder been closed for any reason? Try turning off the heating side if possible and forcing the heat through the hot water side. Turn up the boiler thermostat to full too, this may force the air out of the pipes. Air gets into a system usually after being drained down.

drop it in the jar
January 2011